[10-Q] Sun Country Airlines Holdings, Inc. Quarterly Earnings Report

Rhea-AI Filing Summary

Q2 FY-25 (three months ended 6/30/25): Sun Country (SNCY) grew operating revenue 4% YoY to $263.6 m and operating income 32% to $16.3 m (6.2% margin). Net income jumped to $6.6 m, or $0.12 diluted EPS, from $1.8 m ($0.03) a year earlier.

Key drivers: Cargo revenue rose 37% to $34.8 m as Amazon aircraft increased to 19 (12 prior year). Passenger revenue slipped 1% on a 6% ASM reduction while total fare per passenger climbed 7% and TRASM 4%. Fuel cost per gallon fell 15%, cutting fuel expense 19%. Salaries & benefits climbed 13% on headcount growth and new labor accords.

Six-month results: Revenue up 4% to $590.3 m; net income up 16% to $43.1 m ($0.78 EPS). Operating cash flow was $36.3 m; capex $21.2 m.

Balance sheet: Cash & restricted cash declined to $53.3 m (Dec-24: $100.5 m); investments $101.3 m. Debt trimmed to $284.5 m from $330.1 m; equity rose to $613.0 m. A new $75 m revolving credit facility is undrawn; covenant requires ≥$55 m liquidity.

Capital & fleet: Total fleet 69 B737s (45 passenger, 19 cargo, 5 leased-out). One aircraft retired. Repurchased 631 k shares for $10 m; new $25 m authorization remains. All eight additional Amazon aircraft expected in service by Q3 25; a new co-branded credit card launches H2 25.

Positive

• Cargo revenue up 37% YoY driven by Amazon fleet expansion to 19 aircraft, boosting diversification and margins.
• Net income rose to $6.6 m vs $1.8 m prior year; diluted EPS $0.12 vs $0.03.
• Fuel cost per gallon down 15%, reducing quarterly fuel expense by $11.7 m.
• Total debt reduced by $45.6 m since year-end, improving leverage.
• Undrawn $75 m revolver secured, enhancing liquidity flexibility.

Negative

• Unrestricted cash fell to $37 m, near the $55 m minimum liquidity covenant when restricted cash excluded.
• Passenger revenue declined 1% with load factor down 1.3 pts as capacity shifted to cargo.
• Salaries, wages & benefits up 13% due to headcount growth and new labor contracts, pressuring unit costs.
• Share repurchase of $10 m further reduced cash during a liquidity-tight quarter.

Insights

Airline Equity Analyst

TL;DR: Earnings beat, cargo-led growth offsets softer passenger; liquidity tight but revolver provides buffer.

Revenue mix continues to tilt toward Amazon CMI flying, lifting margins despite a modest dip in leisure capacity. Fuel tailwinds and disciplined cost control produced a 32% jump in operating profit and a 263% gain in net income. Debt pay-down of $45 m YTD and a 5.7 pt equity increase strengthen leverage metrics. However, unrestricted cash of $37 m sits just above the $55 m covenant once restricted cash is excluded, leaving limited headroom until the credit card partnership and full cargo ramp add cash. Management’s $25 m buyback authorization looks aggressive given current liquidity, but unused revolver capacity provides near-term flexibility.

Aviation Industry Specialist

TL;DR: Fleet strategy shows execution; Amazon expansion enhances counter-cyclical revenue.

The jump to 19 Amazon aircraft (target 20) validates SNCY’s hybrid model, balancing seasonal passenger swings with fixed-rate cargo flying. Cargo volumes and contractual rate escalators drove 37% top-line growth in that segment, while passenger load factor held above 81% despite capacity reallocation. New labor deals and rising wages are manageable given productivity gains and fuel relief. The company’s 69-aircraft NG fleet remains standardized, supporting maintenance efficiency. Credit facility upsize to $75 m adds optionality for further fleet or share repurchases, but cash must be rebuilt.

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Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2025

Or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 001-40217

Sun Country Airlines Holdings, Inc.

(Exact name of registrant as specified in its charter)

Delaware			82-4092570
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
2005 Cargo Road
Minneapolis, Minnesota			55450
(Address of principal executive offices)			(Zip Code)
Registrant’s telephone number, including area code: (651) 681-3900

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock, par value $0.01 per share

SNCY

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

			Large accelerated Filer ☐			Accelerated Filer ☑			Non-accelerated Filer ☐
						Smaller reporting company ☐			Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No ☑

Number of shares outstanding by each class of common stock, as of June 30, 2025:

Common Stock, $0.01 par value – 53,316,378 shares outstanding

Table of Contents

Sun Country Airlines Holdings, Inc.

Form 10-Q

Table of Contents

						Page
Part I. Financial Information
Item 1. Financial Statements
Condensed Consolidated Balance Sheets						3
Condensed Consolidated Statements of Operations						5
Condensed Consolidated Statements of Comprehensive Income						6
Condensed Consolidated Statements of Changes in Stockholders’ Equity						7
Condensed Consolidated Statements of Cash Flows						8
Notes to the Condensed Consolidated Financial Statements
1			Basis of Presentation			9
2			Revenue			9
3			Earnings per Share			12
4			Aircraft			12
5			Debt			14
6			Investments			16
7			Fair Value Measurements			17
8			Income Taxes			18
9			Special Items, net			18
10			Stockholders' Equity			18
11			Commitments and Contingencies			19
12			Operating Segments			19
13			Subsequent Events			21
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations						22
Item 3. Quantitative and Qualitative Disclosures About Market Risk						46
Item 4. Controls and Procedures						46
Part II. Other Information
Item 1. Legal Proceedings						46
Item 1A. Risk Factors						46
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds						46
Item 3. Defaults Upon Senior Securities						47
Item 4. Mine Safety Disclosures						47
Item 5. Other Information						47
Item 6. Exhibits						48
Signatures						49

-2-

Table of Contents

PART I. Financial Information

ITEM 1. FINANCIAL STATEMENTS

SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share and share amounts)

			June 30, 2025						December 31, 2024
			(Unaudited)
ASSETS
Current Assets:
Cash and Cash Equivalents			$	36,964					$	83,219
Restricted Cash			16,346						17,252
Investments			101,337						104,053
Accounts Receivable, net of an allowance for credit losses of $759 and $617, respectively			35,265						35,296
Short-term Lessor Maintenance Deposits			1,146						521
Inventory, net of a reserve for obsolescence of $1,049 and $784, respectively			11,302						10,467
Prepaid Expenses			15,216						13,837
Other Current Assets			4,717						1,939
Total Current Assets			222,293						266,584
Property & Equipment, net:
Aircraft and Flight Equipment			799,515						775,210
Aircraft and Flight Equipment Held for Operating Lease			93,548						124,383
Ground Equipment and Leasehold Improvements			49,124						46,550
Computer Hardware and Software			23,729						22,436
Finance Lease Assets			309,877						309,877
Rotable Parts			26,498						26,626
Total Property & Equipment			1,302,291						1,305,082
Accumulated Depreciation & Amortization			(374,139)						(334,993)
Total Property & Equipment, net			928,152						970,089
Other Assets:
Goodwill			222,223						222,223
Other Intangible Assets, net of accumulated amortization of $32,329 and $29,903, respectively			75,412						77,838
Operating Lease Right-of-use Assets			15,591						16,896
Aircraft Deposits			7,925						7,925
Long-term Lessor Maintenance Deposits			59,571						53,624
Other Assets			20,942						14,998
Total Other Assets			401,664						393,504
Total Assets			$	1,552,109					$	1,630,177

See accompanying Notes to Condensed Consolidated Financial Statements

-3-

Table of Contents

SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share and share amounts)

			June 30, 2025						December 31, 2024
			(Unaudited)
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
Accounts Payable			$	56,532					$	56,034
Accrued Salaries, Wages, and Benefits			36,931						38,327
Accrued Transportation Taxes			14,795						20,534
Air Traffic Liabilities			106,599						160,686
Finance Lease Obligations			20,830						20,175
Loyalty Program Liabilities			9,481						10,121
Operating Lease Obligations			3,435						3,281
Current Maturities of Long-term Debt, net			81,438						87,579
Income Tax Receivable Agreement Liability			11,720						10,325
Other Current Liabilities			12,941						15,228
Total Current Liabilities			354,702						422,290
Long-term Liabilities:
Finance Lease Obligations			240,505						251,087
Loyalty Program Liabilities			4,916						4,480
Operating Lease Obligations			15,605						17,369
Long-term Debt, net			200,629						239,543
Deferred Tax Liability			33,663						23,566
Income Tax Receivable Agreement Liability			75,449						87,369
Other Long-term Liabilities			13,595						14,100
Total Long-term Liabilities			584,362						637,514
Total Liabilities			939,064						1,059,804
Commitments and Contingencies (see Note 11)
Stockholders' Equity:
Common stock, with $0.01 par value, 995,000,000 shares authorized, 60,290,298 and 59,500,970 issued and 53,316,378 and 53,157,964 outstanding at June 30, 2025 and December 31, 2024, respectively			603						595
Preferred stock, with $0.01 par value, 5,000,000 shares authorized, no shares issued and outstanding at June 30, 2025 and December 31, 2024, respectively			—						—
Treasury stock, at cost, 6,973,920 and 6,343,006 shares held at June 30, 2025 and December 31, 2024, respectively			(115,866)						(105,866)
Additional Paid-In Capital			538,096						528,604
Retained Earnings			190,244						147,132
Accumulated Other Comprehensive Loss			(32)						(92)
Total Stockholders' Equity			613,045						570,373
Total Liabilities and Stockholders' Equity			$	1,552,109					$	1,630,177

See accompanying Notes to Condensed Consolidated Financial Statements

-4-

Table of Contents

SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Operating Revenues:
Passenger			$	214,668					$	216,395					$	500,556					$	491,059
Cargo			34,803						25,447						62,960						49,395
Other			14,150						12,539						26,754						25,410
Total Operating Revenues			263,621						254,381						590,270						565,864
Operating Expenses:
Aircraft Fuel			50,536						62,188						115,155						132,492
Salaries, Wages, and Benefits			89,557						79,359						182,402						161,597
Maintenance			18,250						17,339						37,112						34,156
Sales and Marketing			8,001						8,392						18,396						19,071
Depreciation and Amortization			24,972						23,631						49,776						47,440
Ground Handling			11,353						11,368						22,760						20,522
Landing Fees and Airport Rent			14,971						13,723						31,804						28,452
Special Items, net			49						—						1,848						—
Other Operating, net			29,670						26,016						58,509						54,593
Total Operating Expenses			247,359						242,016						517,762						498,323
Operating Income			16,262						12,365						72,508						67,541
Non-operating Income (Expense):
Interest Income			1,513						1,800						3,508						4,248
Interest Expense			(9,212)						(11,077)						(18,837)						(22,189)
Other, net			(7)						(4)						(485)						42
Total Non-operating Expense, net			(7,706)						(9,281)						(15,814)						(17,899)
Income Before Income Tax			8,556						3,084						56,694						49,642
Income Tax Expense			1,979						1,272						13,582						12,517
Net Income			$	6,577					$	1,812					$	43,112					$	37,125
Net Income per share to common stockholders:
Basic			$	0.12					$	0.03					$	0.81					$	0.70
Diluted			$	0.12					$	0.03					$	0.78					$	0.67
Shares used for computation:
Basic			53,222,461						52,689,408						53,282,013						52,861,973
Diluted			54,777,448						54,792,848						55,142,573						55,095,265

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Dollars in thousands)

(Unaudited)

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Net Income			$	6,577					$	1,812					$	43,112					$	37,125
Other Comprehensive Income (Loss):
Net unrealized gains (losses) on Available-for-Sale securities, net of deferred tax expense (benefit) of $1, $(12), $18, and $(54), respectively			3						(16)						60						(155)
Other Comprehensive Income (Loss)			3						(16)						60						(155)
Comprehensive Income			$	6,580					$	1,796					$	43,172					$	36,970

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(Dollars in thousands, except share amounts)

(Unaudited)

			Six Months Ended June 30, 2025
			Warrants						Common Stock												Treasury Stock												Additional Paid-in Capital						Retained Earnings						Accumulated Other Comprehensive (Loss) Income						Total
									Shares						Amount						Shares						Amount
December 31, 2024			4,109,135						59,500,970						$	595					6,343,006						$	(105,866)					$	528,604					$	147,132					$	(92)					$	570,373
Stock Issued for Stock-Based Awards			—						673,953						7						—						—						2,483						—						—						2,490
Common Stock Repurchases and Excise Tax			—						—						—						630,914						(10,000)						—						—						—						(10,000)
Net Income			—						—						—						—						—						—						36,535						—						36,535
Amazon Warrants			252,869						—						—						—						—						1,867						—						—						1,867
Stock-based Compensation			—						—						—						—						—						1,695						—						—						1,695
Other Comprehensive Income			—						—						—						—						—						—						—						57						57
March 31, 2025			4,362,004						60,174,923						$	602					6,973,920						$	(115,866)					$	534,649					$	183,667					$	(35)					$	603,017
Stock Issued for Stock-Based Awards			—						115,375						1						—						—						21						—						—						22
Net Income			—						—						—						—						—						—						6,577						—						6,577
Amazon Warrants			252,869						—						—						—						—						1,867						—						—						1,867
Stock-based Compensation			—						—						—						—						—						1,559						—						—						1,559
Other Comprehensive Income			—						—						—						—						—						—						—						3						3
June 30, 2025			4,614,873						60,290,298						$	603					6,973,920						$	(115,866)					$	538,096					$	190,244					$	(32)					$	613,045

			Six Months Ended June 30, 2024
			Warrants						Common Stock												Treasury Stock												Additional Paid-in Capital						Retained Earnings						Accumulated Other Comprehensive Loss						Total
									Shares						Amount						Shares						Amount
December 31, 2023			3,224,093						58,878,723						$	589					5,587,722						$	(94,341)					$	513,988					$	94,229					$	(62)					$	514,403
Stock Issued for Stock-Based Awards			—						75,606						1						—						—						110						—						—						111
Common Stock Repurchases and Excise Tax			—						—						—						755,284						(11,596)						—						—						—						(11,596)
Net Income			—						—						—						—						—						—						35,313						—						35,313
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						1,514						—						—						1,514
Other Comprehensive Loss			—						—						—						—						—						—						—						(139)						(139)
March 31, 2024			3,413,745						58,954,329						$	590					6,343,006						$	(105,937)					$	517,012					$	129,542					$	(201)					$	541,006
Stock Issued for Stock-Based Awards			—						195,760						2						—						—						587						—						—						589
Common Stock Repurchases and Excise Tax			—						—						—						—						23						—						—						—						23
Net Income			—						—						—						—						—						—						1,812						—						1,812
Amazon Warrants			252,869						—						—						—						—						1,867						—						—						1,867
Stock-based Compensation			—						—						—						—						—						1,570						—						—						1,570
Other Comprehensive Loss			—						—						—						—						—						—						—						(16)						(16)
June 30, 2024			3,666,614						59,150,089						$	592					6,343,006						$	(105,914)					$	521,036					$	131,354					$	(217)					$	546,851

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Dollars in thousands)

(Unaudited)

			Six Months Ended June 30,
			2025						2024
Net Income			$	43,112					$	37,125
Adjustments to reconcile Net Income to Cash Provided by Operating Activities:
Depreciation and Amortization			49,776						47,440
Deferred Income Taxes			10,079						9,539
Other, net			3,771						3,947
Changes in Operating Assets and Liabilities:
Accounts Receivable			4,273						(1,268)
Inventory			(1,079)						(2,444)
Prepaid Expenses			(1,379)						783
Lessor Maintenance Deposits			(6,573)						(8,387)
Other Assets			(2,646)						291
Accounts Payable			2,089						3,625
Accrued Transportation Taxes			(5,739)						(2,934)
Air Traffic Liabilities			(54,086)						(41,119)
Loyalty Program Liabilities			(204)						(464)
Operating Lease Obligations			(1,610)						(958)
Other Liabilities			(3,532)						(6,304)
Net Cash Provided by Operating Activities			36,252						38,872
Cash Flows (Used in) Provided by Investing Activities:
Purchases of Property & Equipment			(21,204)						(38,231)
Purchases of Investments			(28,034)						(31,610)
Proceeds from the Maturities of Investments			30,979						64,500
Other, net			10,248						8,863
Net Cash (Used in) Provided by Investing Activities			(8,011)						3,522
Cash Flows Used in Financing Activities:
Common Stock Repurchases			(10,000)						(11,493)
Proceeds from Borrowings			—						10,000
Repayment of Finance Lease Obligations			(9,926)						(20,870)
Repayment of Borrowings			(45,628)						(46,767)
Tax Receivable Agreement Payment			(10,525)						(3,350)
Other, net			677						443
Net Cash Used in Financing Activities			(75,402)						(72,037)
Net Decrease in Cash, Cash Equivalents and Restricted Cash			(47,161)						(29,643)
Cash, Cash Equivalents and Restricted Cash--Beginning of the Period			100,471						63,680
Cash, Cash Equivalents and Restricted Cash--End of the Period			$	53,310					$	34,037
Non-cash transactions:
Aircraft Acquired under Finance Lease			$	—					$	40,116
Aircraft Acquired from the Exercise of Finance Lease Purchase Option, net of Accumulated Depreciation			$	—					$	11,634
Maintenance Rights Asset Capitalized into Aircraft and Flight Equipment upon End of Lease			$	4,697					$	—
Maintenance Rights Asset Converted to Accounts Receivable upon End of Lease			$	3,982					$	—
The following provides a reconciliation of Cash, Cash Equivalents and Restricted Cash to the amounts reported on the Condensed Consolidated Balance Sheets:
			June 30, 2025						June 30, 2024
Cash and Cash Equivalents			$	36,964					$	26,864
Restricted Cash			16,346						7,173
Total Cash, Cash Equivalents and Restricted Cash			$	53,310					$	34,037

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

1.    BASIS OF PRESENTATION

Sun Country Airlines Holdings, Inc. (together with its consolidated subsidiaries, "Sun Country" or the "Company") is the parent company of Sun Country, Inc., which is a certificated air carrier providing scheduled passenger service, air cargo service, charter air transportation and related services.

The Company has prepared the unaudited Condensed Consolidated Financial Statements according to U.S. Generally Accepted Accounting Principles (“GAAP”) and has included the accounts of Sun Country Airlines Holdings, Inc. and its subsidiaries. Certain information and footnote disclosures normally included in the audited annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") for Form 10-Q. Therefore, the accompanying unaudited Condensed Consolidated Financial Statements of Sun Country Airlines Holdings, Inc. should be read in conjunction with the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2024 as filed with the SEC ("2024 10-K"). These unaudited Condensed Consolidated Financial Statements reflect all normal recurring adjustments that are necessary for the fair presentation of the Company’s financial position, results of operations, and cash flows for the respective periods presented. All material intercompany balances and transactions have been eliminated in consolidation.

The preparation of financial statements in accordance with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

Due to impacts from seasonal variations in the demand for air travel, the volatility of aircraft fuel prices, the impact of macroeconomic conditions, and other factors, operating results for the six months ended June 30, 2025 are not necessarily indicative of operating results for other interim periods or for the full year ending December 31, 2025.

Recently Issued Accounting Standards

In December 2023, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU requires, among other disclosures, greater disaggregation of information, the use of certain categories in the rate reconciliation, and the disaggregation of income taxes paid by jurisdiction. The ASU is effective for public business entities for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company continues to assess the impact of this ASU on its Consolidated Financial Statements.

2.    REVENUE

Sun Country is a certificated air carrier generating Operating Revenues from Passenger (consisting of Scheduled Service, Charter, and Ancillary), Cargo and Other revenue. Scheduled Service revenue mainly consists of base fares. Charter revenue is primarily generated through service provided to the U.S. Department of Defense ("DoD"), collegiate and professional sports teams, and casinos. Ancillary revenue consists of revenue earned from air travel-related services, such as: baggage fees, seat selection fees, other fees and on-board sales. Cargo consists of revenue earned from flying cargo aircraft for Amazon.com Services, Inc. (together with its affiliates, “Amazon”) under the Amended and Restated Air Transportation Services Agreement (the “A&R ATSA”). Other revenue consists primarily of revenue from services in connection with Sun Country Vacations products and rental revenue related to certain transactions where the Company serves as a lessor. The Company recognized rental revenue of $10,981 and $9,873, during

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

the three months ended June 30, 2025 and 2024, respectively; and $19,617 and $19,148 during the six months ended June 30, 2025 and 2024, respectively.

In June 2024, the Company entered into the A&R ATSA with Amazon that will increase the number of Boeing 737-800 cargo aircraft that Sun Country operates on behalf of Amazon from 12 to 20 in 2025. For more information on the A&R ATSA, see Note 2, "Basis of Presentation and Summary of Significant Accounting Policies" included within Part II, Item 8 of the 2024 10-K. During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service. Subsequent to June 30, 2025, the Company received the eighth and final aircraft. As of the date of this filing, five aircraft were in-service. All eight additional aircraft are expected to be in-service by the end of the third quarter of 2025.

The significant categories comprising Operating Revenues are as follows:

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Scheduled Service			$	88,138					$	88,078					$	231,660					$	229,272
Charter			54,271						51,009						108,963						98,321
Ancillary			72,259						77,308						159,933						163,466
Passenger			214,668						216,395						500,556						491,059
Cargo			34,803						25,447						62,960						49,395
Other			14,150						12,539						26,754						25,410
Total Operating Revenues			$	263,621					$	254,381					$	590,270					$	565,864

The Company attributes and measures its Operating Revenues by geographic region as defined by the U.S. Department of Transportation ("DOT") for airline reporting based upon the origin of each passenger and cargo flight segment.

The Company’s operations are highly concentrated in the U.S., but include service to many international locations, primarily consisting of scheduled service to Latin America and military charter service to various international destinations.

Total Operating Revenues by geographic region are as follows:

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Domestic			$	256,903					$	247,898					$	558,277					$	538,112
Latin America			6,718						6,483						31,894						27,752
Other			—						—						99						—
Total Operating Revenues			$	263,621					$	254,381					$	590,270					$	565,864

Contract Balances

The Company’s contract assets primarily relate to costs incurred to prepare the Amazon cargo aircraft for service under the original ATSA and the A&R ATSA, as well as warrants that have vested and will be amortized against Cargo revenue over the remaining term of the A&R ATSA. The balances are included in Other Current Assets and Other Assets on the Condensed Consolidated Balance Sheets.

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

The Company’s contract liabilities are primarily comprised of: 1) ticket sales for transportation that have not yet been provided (reported as Air Traffic Liabilities on the Condensed Consolidated Balance Sheets), 2) outstanding loyalty points that may be redeemed for future travel and other non-air travel awards (reported as Loyalty Program Liabilities on the Condensed Consolidated Balance Sheets) and, 3) the Amazon Deferred Up-front Payment received under the original ATSA (reported within Other Current Liabilities and Other Long-term Liabilities on the Condensed Consolidated Balance Sheets).

Contract Assets and Liabilities are as follows:

			June 30, 2025						December 31, 2024
Contract Assets
Amazon Contract			$	8,553					$	4,135
Total Contract Assets			$	8,553					$	4,135
Contract Liabilities
Air Traffic Liabilities			$	106,599					$	160,686
Loyalty Program Liabilities			14,397						14,601
Amazon Contract			1,865						1,612
Total Contract Liabilities			$	122,861					$	176,899

The balance in the Air Traffic Liabilities fluctuates with seasonal travel patterns. Most tickets can be purchased no more than 12 months in advance, therefore any revenue associated with tickets sold for future travel will be recognized within that timeframe. For the six months ended June 30, 2025, $151,101 of revenue was recognized in Passenger revenue that was included in the Air Traffic Liabilities as of December 31, 2024.

Loyalty Program

The Sun Country Rewards program provides loyalty awards to program members based on accumulated loyalty points. The Company records a liability for loyalty points earned by passengers under the Sun Country Rewards program using two methods: 1) a liability for points that are earned by passengers on purchases of the Company’s services is established by deferring revenue based on the redemption value, net of estimated loyalty points that will expire unused, or breakage; and 2) a liability for points attributed to loyalty points issued to the Company’s co-branded credit card holders is established by deferring a portion of payments received from the Company’s co-branded agreement. The balance of the Loyalty Program Liabilities fluctuates based on seasonal patterns, which impacts the volume of loyalty points awarded through travel or issued to co-branded credit card and other partners (deferral of revenue) and loyalty points redeemed (recognition of revenue). Due to these reasons, the timing of loyalty point redemptions can vary significantly.

Changes in the Loyalty Program Liabilities are as follows:

			2025						2024
Balance – January 1			$	14,601					$	13,737
Loyalty Points Earned			4,852						4,519
Loyalty Points Redeemed (1)			(5,056)						(4,984)
Balance – June 30			$	14,397					$	13,272

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

______________________

(1) Loyalty points are combined in one homogenous pool, which includes both air and non-air travel awards, and are not separately identifiable. As such, the revenue recognized is comprised of points that were part of the Loyalty Program Liabilities balance at the beginning of the period, as well as points that were earned during the period.

In March 2025, the Company entered into a Credit Card Program Agreement for a new co-branded credit card program. The new co-branded credit card program is expected to launch in the second half of 2025. Subject to certain exceptions, the Credit Card Program Agreement has a term of seven years following its launch, with automatic successive one-year renewal terms.

3.    EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share:

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Numerator:
Net Income			$	6,577					$	1,812					$	43,112					$	37,125
Denominator:
Weighted Average Common Shares Outstanding - Basic			53,222,461						52,689,408						53,282,013						52,861,973
Dilutive effect of Stock Options, RSUs and Warrants			1,554,987						2,103,440						1,860,560						2,233,292
Weighted Average Common Shares Outstanding - Diluted			54,777,448						54,792,848						55,142,573						55,095,265
Anti-dilutive effect of Stock Options, RSUs and Warrants excluded from calculation of Dilutive effect			5,668,729						4,856,996						3,043,760						4,543,986
Basic earnings per share			$	0.12					$	0.03					$	0.81					$	0.70
Diluted earnings per share			$	0.12					$	0.03					$	0.78					$	0.67

4. AIRCRAFT

As of June 30, 2025, Sun Country's fleet consisted of 69 Boeing 737-NG aircraft, comprised of 64 Boeing 737-800s and five Boeing 737-900ERs.

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

The following tables summarize the Company’s aircraft fleet activity for the six months ended June 30, 2025 and 2024, respectively:

			December 31, 2024						Additions						Reclassifications						Removals						June 30, 2025
Passenger:
Owned			34						—						1						(1)						34
Finance leases			11						—						—						—						11
Sun Country Airlines’ Fleet			45						—						1						(1)						45
Cargo:
Aircraft Operated for Amazon (1)			12						7						—						—						19
Other:
Owned Aircraft Held for Operating Lease			4						—						(1)						—						3
Subleased Aircraft (2)			2						—						—						—						2
Total Aircraft			63						7						—						(1)						69
			December 31, 2023						Additions						Reclassifications						Removals						June 30, 2024
Passenger:
Owned			29						1						1						—						31
Finance leases			13						1						(1)						—						13
Sun Country Airlines’ Fleet			42						2						—						—						44
Cargo:
Aircraft Operated for Amazon			12						—						—						—						12
Other:
Owned Aircraft Held for Operating Lease			5						—						—						—						5
Subleased Aircraft (2)			1						1						—						—						2
Total Aircraft			60						3						—						—						63

(1)			This amount includes 15 aircraft in-service and 4 aircraft received, but not in-service as of June 30, 2025.
(2)			The head leases associated with these subleases are classified as finance leases.

During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service. Subsequent to June 30, 2025, the Company received the eighth and final aircraft. As of the date of this filing, five aircraft were in-service. During the six months ended June 30, 2025, amendments were executed to extend the lease expiry terms for the three Owned Aircraft Held for Operating Lease, which now expire over various dates through the fourth quarter of 2026. During the six months ended June 30, 2025, an amendment was executed to extend the lease expiry terms for one of the Company's subleased aircraft, which now expires in the second quarter of 2026. During the six months ended June 30, 2025, the Company retired one owned aircraft. Of the 37 Owned aircraft and Owned Aircraft Held for Operating Lease as of June 30, 2025, 31 aircraft were financed, five aircraft have been pledged to support the ability to efficiently utilize the Company's four-year $75,000 revolving credit

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

facility (“Revolving Credit Facility”) entered into during March 2025, and one aircraft was unencumbered. See Note 5 for more information on the Company's Revolving Credit Facility.

During the six months ended June 30, 2025, the Company accepted delivery of one of the Owned Aircraft Held for Operating Lease that was leased to an unaffiliated airline, which will be inducted into the passenger fleet. Upon acquisition of the Owned Aircraft held for Operating Lease, the Company recognized a Maintenance Rights Asset associated with the acquired leases. Based on the maintenance condition of the one aircraft returned in 2025, the Maintenance Rights Asset settlement resulted in capitalized asset improvements of $4,697 and cash received from the lessee in excess of the Maintenance Rights Asset totaling $2,716. The cash received for end of lease compensation in excess of the Maintenance Rights Asset was recognized within Other Revenue in the Company’s Condensed Consolidated Statement of Operations.

During the six months ended June 30, 2024, the Company acquired one incremental aircraft and took control of two aircraft through finance lease arrangements, one of which was subsequently subleased to an unaffiliated airline. Upon expiry of the sublease, the aircraft will be redelivered to the Company and is expected to be inducted into the Company's passenger fleet. Further, the Company purchased one aircraft previously classified as a finance lease.

Depreciation, amortization, and rent expense on aircraft are as follows:

												Three Months Ended June 30,												Six Months Ended June 30,
Aircraft Status						Expense Type						2025						2024						2025						2024
Owned						Depreciation						$	14,473					$	14,167					$	28,892					$	28,507
Finance Leased						Amortization						5,206						5,438						10,411						11,167
												$	19,679					$	19,605					$	39,303					$	39,674

5.    DEBT

Credit Facilities

In March 2025, the Company executed a new $75,000 Revolving Credit Facility with a group of lenders. The new Revolving Credit Facility replaces the Company's previous $25,000 revolving credit facility. The interest rate on borrowings is determined using a base rate plus an applicable margin of 2.5%. In addition, there is a commitment fee on the unused Revolving Credit Facility of 0.6%. The Revolving Credit Facility is guaranteed by the Company and secured by a pool of collateral. Accordingly, the Company pledged certain assets as collateral, including certain previously unencumbered aircraft, to support the ability to efficiently utilize the Revolving Credit Facility. Available funds from the Revolving Credit Facility can be used for general corporate purposes. The Revolving Credit Facility includes financial covenants that require the Company to maintain: 1) minimum liquidity, as defined within the agreement, of not less than $55,000, 2) a minimum adjusted EBITDAR of $110,000 for any four consecutive fiscal quarters and 3) a minimum ratio of the borrowing base of the collateral to outstanding obligations under the Revolving Credit Facility of not less than 1.0 to 1.0. The Company was in compliance with these financial covenants as of June 30, 2025. As of June 30, 2025, the Company had $75,000 of financing available through the Revolving Credit Facility.

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

Long-term Debt

Term Loan Credit Facility

During the three months ended March 31, 2023, the Company executed a term loan credit facility with a face amount of $119,200 ("Term Loan Credit Facility") for the purpose of financing the five Owned Aircraft Held for Operating Lease. The loan is repaid monthly through March 2030. During the lease term, payments collected from the lessee are applied directly to the repayment of principal and interest on the Term Loan Credit Facility. The Owned Aircraft Held for Operating Lease, as well as the related lease payments received from the lessee, are pledged as collateral. In December 2024, the Company made a partial repayment of $60,000 on the Term Loan Credit Facility using proceeds from the reissued Class C trust certificates Series 2019-1.

The interest rate on the Term Loan Credit Facility is determined using a base rate, which resets monthly, plus an applicable margin, and a fixed credit spread adjustment of 0.1%. The applicable margin during the lease term is fixed at 3.75%, and is subsequently reduced to 3.25% once the aircraft have been redelivered to the Company and a Loan-to-Value ("LTV") ratio calculation is completed. To the extent that the LTV ratio exceeds 75% at the end of the lease term, a principal prepayment will be required in order to reduce the ratio to 75%. For more information on the LTV and the Company's related accounting policies, see Note 7, "Debt" included within Part II, Item 8 of the 2024 10-K.

As of June 30, 2025, the lease terms had expired for two Owned Aircraft Held for Operating Lease. As of the lease term expiry dates, the LTV ratios were below 75%. Therefore, principal prepayments were not required. The interest rate in effect as of June 30, 2025 for the redelivered aircraft was 7.7%. The interest rate in effect for the three remaining Owned Aircraft Held for Operating Lease as of June 30, 2025 was 8.2%.

Pass-Through Trust Certificates

During March 2022, the Company arranged for the issuance of Class A and Class B certificates Series 2022-1 (the "2022-1 EETC") in an aggregate face amount of $188,277 for the purpose of financing or refinancing 13 aircraft. The Company is required to make bi-annual principal and interest payments each March and September, through March 2031. These notes bear interest at an annual rate between 4.84% and 5.75%. The weighted average interest rate was 5.05% as of June 30, 2025.

In December 2019, the Company arranged for the issuance of Class A, Class B and Class C trust certificates Series 2019-1 (the “2019-1 EETC”), in an aggregate face amount of $248,587 for the purpose of financing or refinancing 13 aircraft, which was completed in 2020. The Company is required to make bi-annual principal and interest payments each June and December, through December 2027.

In December 2024, the Company reissued Class C trust certificates from the 2019-1 EETC, which had previously been repaid, in an aggregate face amount of $60,000 and concurrently applied the proceeds to repay a portion of the Term Loan Credit Facility. The reissued Class C trust certificates had no impact on the bi-annual payment schedule or the term of the 2019-1 EETC. The 2019-1 EETC notes bear interest at an annual rate between 4.13% and 7.10%. The weighted average interest rate was 5.43% as of June 30, 2025.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

Long-term Debt includes the following:

			June 30, 2025						December 31, 2024
2019-1 EETC (see terms and conditions above)			$	131,811					$	158,510
2022-1 EETC (see terms and conditions above)			128,410						138,532
Term Loan Credit Facility (see terms and conditions above)			24,273						33,080
Total Debt			284,494						330,122
Less: Unamortized debt issuance costs			(2,427)						(3,000)
Less: Current Maturities of Long-term Debt, net			(81,438)						(87,579)
Total Long-term Debt, net			$	200,629					$	239,543

Future maturities of the outstanding Debt are as follows:

			Debt Principal Payments						Amortization of Debt Issuance Costs						Net Debt
Remainder of 2025			$	46,832					$	(519)					$	46,313
2026			65,439						(809)						64,630
2027			86,649						(595)						86,054
2028			20,355						(260)						20,095
2029			28,400						(155)						28,245
Thereafter			36,819						(89)						36,730
Total as of June 30, 2025			$	284,494					$	(2,427)					$	282,067

The fair value of Debt was $273,041 as of June 30, 2025 and $311,103 as of December 31, 2024. The fair value of the Company’s debt was based on the discounted amount of future cash flows using the Company’s end-of-period estimated incremental borrowing rate for similar obligations. The estimates were primarily based on Level 3 inputs.

6. INVESTMENTS

A summary of debt securities by major security type:

			June 30, 2025
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Available-for-Sale Securities: (1)
Municipal Debt Securities			$	1,346					$	2					$	—					$	1,348
Corporate Debt Securities			48,197						34						(27)						48,204
U.S. Government Agency Securities			45,141						1						(50)						45,092
Total			$	94,684					$	37					$	(77)					$	94,644

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

			December 31, 2024
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Available-for-Sale Securities: (1)
Corporate Debt Securities			$	53,452					$	22					$	(40)					$	53,434
U.S. Government Agency Securities			44,303						2						(103)						44,202
Total			$	97,755					$	24					$	(143)					$	97,636

(1) The Company also holds Certificates of Deposit that are included in Investments on the Condensed Consolidated Balance Sheets totaling $6,693 and $6,417 as of June 30, 2025 and December 31, 2024, respectively.

As of June 30, 2025, the unrealized losses were the result of changes in market interest rates and were not the result of a deterioration in the credit quality of the securities. As of June 30, 2025, the Company expects any unrealized losses to be recoverable prior to the investment's conversion to cash.

7.    FAIR VALUE MEASUREMENTS

The following table summarizes the assets measured at fair value on a recurring basis:

			June 30, 2025
			Level 1						Level 2						Level 3						Total
Cash & Cash Equivalents			$	36,964					$	—					$	—					$	36,964
Available-for-Sale Securities:
Municipal Debt Securities			—						1,348						—						1,348
Corporate Debt Securities			—						48,204						—						48,204
U.S. Government Agency Securities			—						45,092						—						45,092
Total Available-for-Sale Securities			—						94,644						—						94,644
Certificates of Deposit			6,693						—						—						6,693
Total Assets Measured at Fair Value on a Recurring Basis			$	43,657					$	94,644					$	—					$	138,301

			December 31, 2024
			Level 1						Level 2						Level 3						Total
Cash & Cash Equivalents			$	83,219					$	—					$	—					$	83,219
Available-for-Sale Securities:
Corporate Debt Securities			—						53,434						—						53,434
U.S. Government Agency Securities			—						44,202						—						44,202
Total Available-for-Sale Securities			—						97,636						—						97,636
Certificates of Deposit			6,417						—						—						6,417
Total Assets Measured at Fair Value on a Recurring Basis			$	89,636					$	97,636					$	—					$	187,272

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

8.    INCOME TAXES

The Company's effective tax rate for the three and six months ended June 30, 2025 was 23.1% and 24.0%, respectively. The Company's effective tax rate for the three and six months ended June 30, 2024 was 41.2% and 25.2%, respectively. The effective tax rate represents a blend of federal and state taxes and includes the impact of certain nondeductible or nontaxable items. The effective tax rate in both periods was impacted by permanent stock compensation items.

Tax Receivable Agreement

The total Tax Receivable Agreement ("TRA") balance as of June 30, 2025 and December 31, 2024 was $87,169 and $97,694, of which $11,720 and $10,325 was current, respectively. The TRA liability is an estimate and actual amounts payable under the TRA could differ from this estimate. During the six months ended June 30, 2025 and 2024, the Company made payments of $10,525 and $3,350, respectively, to the pre-IPO stockholders (the “TRA holders”), which includes certain members of the Company's management and certain members of the Company's Board of Directors. The payment is included within Financing Activities on the Condensed Consolidated Statements of Cash Flows. Payments will be made in future periods as attributes that existed at the time of the IPO (the “Pre-IPO Tax Attributes”) are utilized.

9.    SPECIAL ITEMS, NET

Special Items, net reflects expenses, or credits to expense, that are not representative of our ongoing costs for the periods presented and may vary from period to period in nature, frequency, and amount.

In March 2025, the Company's flight attendants, represented by the International Brotherhood of Teamsters, ratified a new five-year collective bargaining agreement. Upon ratification of the new agreement, eligible flight attendants became entitled to a one-time ratification bonus. Eligibility requirements stipulate that flight attendants must be on the seniority list as of the ratification date, have completed probation, and hold an active status in order to receive the bonus payment. Certain portions of the ratification bonus will be paid in future periods as flight attendants on the seniority list as of the ratification date complete their probationary period or change their status from inactive to active. Ratification bonuses were paid to all eligible flight attendants during the six months ended June 30, 2025, per the collective bargaining agreement. The Company recognized ratification bonuses of $49 and $1,848, including $4 and $142 of payroll related tax expense, for the three and six months ended June 30, 2025, respectively. These items were included within Special Items, net on the Company's Condensed Consolidated Statements of Operations.

10.    STOCKHOLDERS' EQUITY

Equity Transactions

Common Stock Repurchases

The Company may purchase shares of its Common Stock on a discretionary basis from time-to-time through open market repurchases, privately negotiated transactions, accelerated share repurchase, or other means, including through Rule 10b5-1 trading plans.

During the six months ended June 30, 2025, the Company announced the commencement of a secondary public offering of 6,346,105 shares of its Common Stock by the SCA Horus Stockholder. Upon completion of the secondary public offering, the SCA Horus Stockholder did not own any shares of the Company’s Common Stock. The Company did not receive any of the proceeds from the offering. The Company received authorization from its Board of Directors to repurchase up to $10,000 of its Common Stock in

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

connection with this offering. The underwriters agreed to sell to the Company, and the Company agreed to purchase up to $10,000 of the Company's Common Stock from the underwriters equal to the price at which the underwriter purchased the shares from the SCA Horus Stockholder. As part of this transaction, the Company repurchased 630,914 shares of its Common Stock, for a total cost of $10,000, or an average price of $15.85 per share. The Company incurred offering expenses of $481 in conjunction with the secondary public offering.

During the three months ended June 30, 2025, the Company's Board of Directors authorized $25,000 to repurchase shares of the Company's Common Stock, all of which was remaining as of June 30, 2025.

During the six months ended June 30, 2024, the Company repurchased 755,284 shares of its Common Stock at a total cost of $11,493, or an average price of $15.22 per share. The repurchases were open market purchases.

Amazon Agreement

On December 13, 2019, the Company signed a six-year contract with Amazon to provide cargo services under the ATSA. In connection with the ATSA, the Company issued warrants to Amazon to purchase an aggregate of up to 9,482,606 shares of common stock at an exercise price of approximately $15.17 per share. During the six months ended June 30, 2025 and 2024, 505,738 and 442,521 warrants vested in each respective period. As of June 30, 2025 and 2024, the cumulative vested warrants held by Amazon were 4,614,873 and 3,666,614, respectively. The exercise period for these warrants extends through the eighth anniversary of the issue date. No incremental warrants were issued, nor was the original warrant agreement modified, upon the signing of the A&R ATSA.

11.    COMMITMENTS AND CONTINGENCIES

The Company has contractual obligations and commitments primarily with regard to lease arrangements, repayment of debt (see Note 5), payments under the TRA (see Note 8), and probable future purchases of aircraft.

The Company is subject to an audit by the Internal Revenue Service (“IRS”) related to the collection of federal excise taxes on optional passenger seat selection charges covering the period of October 1, 2021 through June 30, 2023. During 2024, the Company received an assessment of approximately $2,700 from the IRS related to the results of the audit. As of June 30, 2025, the Company has appealed the results of the audit through a formal protest with the IRS and there has been no further communication on this matter. The Company believes a loss in this matter is not probable and has not recognized a loss contingency as of June 30, 2025.

The Company is subject to various legal proceedings in the normal course of business and expenses legal costs as incurred. Management does not believe these proceedings will have a materially adverse effect on the Company.

12.    OPERATING SEGMENTS

The Company has two operating and reportable segments: Passenger and Cargo, which are determined by the services provided and fleet utilized. The Chief Operating Decision Maker ("CODM") makes resource allocation decisions with the objective of generating high returns and margins and mitigating the seasonality of the Company’s route network. Operating Income (Loss) is the measure of segment profit that is the most consistent with the amounts presented in the Company’s Condensed Consolidated Financial Statements, as well as the measure the CODM uses to assess segment performance. The accounting policies for the

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

Company’s reportable segments are consistent with those described in Note 2, "Basis of Presentation and Summary of Significant Accounting Policies" included within Part II, Item 8 of the 2024 10-K. There are no intercompany transactions between the Company’s reportable segments.

The following tables present financial information for the Company’s two operating segments: Passenger and Cargo. Certain operating expenses are allocated between the Passenger and Cargo segments. Certain non-fuel operating expenses are allocated based on metrics such as block hours, fleet count and departures, which best align with the nature of the respective expense. Other Operating, net includes crew and other employee travel, interrupted trip expenses, information technology, property taxes and insurance, including hull-liability insurance, supplies, legal and other professional fees, facilities and all other administrative and operational overhead expenses. The CODM does not consider Interest Income, Interest Expense, and Other Income, net, in assessing the financial performance of its operating segments. Collectively, these items are included in reconciling reporting segment financial amounts to consolidated financial amounts.

Nearly all of the Company’s long-lived assets are associated with the Passenger operating segment. Therefore, predominately all depreciation and amortization expense is associated with the Passenger operating segment. Substantially all the Company’s tangible assets are located in the U.S. The Company's Aircraft and Flight equipment are mobile across geographic markets. As a result, assets by segment are not reviewed by the CODM and have not been presented herein.

The following table presents financial information for the Company’s two segments.

			Three Months Ended June 30, 2025																		Three Months Ended June 30, 2024
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	228,818					$	34,803					$	263,621					$	228,934					$	25,447					$	254,381
Operating Expenses:
Aircraft Fuel			50,465						71						50,536						62,180						8						62,188
Salaries, Wages, and Benefits			68,476						21,081						89,557						62,508						16,851						79,359
Maintenance			13,438						4,812						18,250						13,853						3,486						17,339
Sales and Marketing			8,001						—						8,001						8,392						—						8,392
Depreciation and Amortization			24,967						5						24,972						23,626						5						23,631
Ground Handling			11,353						—						11,353						11,368						—						11,368
Landing Fees and Airport Rent			14,801						170						14,971						13,575						148						13,723
Special Items, net			49						—						49						—						—						—
Other Operating, net			23,257						6,413						29,670						20,891						5,125						26,016
Total Operating Expenses			214,807						32,552						247,359						216,393						25,623						242,016
Operating Income (Loss)			$	14,011					$	2,251					16,262						$	12,541					$	(176)					12,365
Interest Income															1,513																		1,800
Interest Expense															(9,212)																		(11,077)
Other, net															(7)																		(4)
Income Before Income Tax															$	8,556																	$	3,084

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

			Six Months Ended June 30, 2025																		Six Months Ended June 30, 2024
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	527,310					$	62,960					$	590,270					$	516,469					$	49,395					$	565,864
Operating Expenses:
Aircraft Fuel			115,084						71						115,155						132,484						8						132,492
Salaries, Wages, and Benefits			143,659						38,743						182,402						128,096						33,501						161,597
Maintenance			28,781						8,331						37,112						27,257						6,899						34,156
Sales and Marketing			18,396						—						18,396						19,071						—						19,071
Depreciation and Amortization			49,766						10						49,776						47,430						10						47,440
Ground Handling			22,760						—						22,760						20,513						9						20,522
Landing Fees and Airport Rent			31,485						319						31,804						28,151						301						28,452
Special Items, net			1,848						—						1,848						—						—						—
Other Operating, net			46,800						11,709						58,509						44,395						10,198						54,593
Total Operating Expenses			458,579						59,183						517,762						447,397						50,926						498,323
Operating Income (Loss)			$	68,731					$	3,777					72,508						$	69,072					$	(1,531)					67,541
Interest Income															3,508																		4,248
Interest Expense															(18,837)																		(22,189)
Other, net															(485)																		42
Income Before Income Tax															$	56,694																	$	49,642

13.    SUBSEQUENT EVENTS

The Company evaluated subsequent events for the period from the Balance Sheet date through August 1, 2025, the date that the Condensed Consolidated Financial Statements were available to be issued.

***

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Unless otherwise indicated, the terms “Sun Country,” “we,” “us” and “our” refer to Sun Country Airlines Holdings, Inc., and its subsidiaries.

Forward-Looking Statements

The following discussion and analysis presents factors that had a material effect on our results of operations during the six months ended June 30, 2025 and 2024. Also discussed is our financial position as of June 30, 2025 and December 31, 2024. This section should be read in conjunction with our unaudited Condensed Consolidated Financial Statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and our audited Consolidated Financial Statements and related notes and discussion under the heading, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2024 10-K. This discussion contains forward-looking statements that involve risk, assumptions and uncertainties, such as statements of our plans, objectives, expectations, intentions and forecasts. Our actual results and the timing of selected events could differ materially from those discussed in these forward-looking statements as a result of several factors, including those set forth under the section of this report titled, “Risk Factors” and elsewhere in this report. You should carefully read the “Risk Factors” included in our 2024 10-K to gain an understanding of the important factors that could cause actual results to differ materially from our forward-looking statements.

Business Overview

Sun Country is a new breed of hybrid low-cost air carrier that dynamically and synergistically deploys shared resources across our Passenger and Cargo segments, and within our Passenger segment, across our Scheduled Service and Charter Service businesses. By doing so, we believe we are able to generate high growth, high margins and strong cash flows with greater resilience than other passenger airlines. Based in Minnesota, we focus on serving leisure and visiting friends and relatives ("VFR") passengers, Charter customers and providing crew, maintenance and insurance (“CMI”) service to Amazon, with flights throughout the U.S. and to destinations in Canada, Mexico, Central America and the Caribbean. We share resources, such as flight crews, across our Scheduled Service, Charter and Cargo business lines with the objective of generating high returns and margins and mitigating the seasonality of our route network. We optimize capacity using an agile peak demand scheduling strategy which aims to shift flying to markets during periods of peak demand and away from markets during periods of low demand. We believe this flexible business model provides greater resiliency to economic and industry downturns than a traditional scheduled service carrier. This strategy has been implemented and executed by an experienced management team with deep knowledge of the industry.

In March 2025, we entered into a Credit Card Program Agreement for a new co-branded credit card program. The new co-branded credit card program is expected to launch in the second half of 2025. Subject to certain exceptions, the Credit Card Program Agreement has a term of seven years following its launch, with automatic successive one-year renewal terms.

For more information on our business and strategic advantages, see the "Business" and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections within Part I, Item 1 and Part II, Item 7, respectively, in our 2024 10-K.

Operations in Review

We believe a key component of our success is establishing Sun Country as a high growth, low-cost carrier in the U.S. by attracting customers with low fares and garnering repeat business by delivering a high-quality

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

passenger experience, offering state-of-the-art interiors, complimentary streaming of in-flight entertainment to passenger devices, seat reclining and seat-back power in all our aircraft.

The demand for air travel services has historically been affected by U.S. and global economic conditions, or other geopolitical events. Our diversified business model, which includes a focus on leisure and VFR passengers, Charter and Cargo service, all primarily within the U.S., is unique in the airline sector and helps mitigate the impact of cyclical, economic, and industry downturns on our business when compared with other large U.S. passenger airlines. For example, most of our Charter contracts are non-cyclical because these customers still fly during normal economic downturns, and our casino contracts are long-term in nature. Further, our crew can be utilized by flying Cargo service in periods when the Passenger business is less profitable. Our business model is flexible, which gives us the ability to adjust our services in response to market conditions and is intended to produce the highest possible returns for Sun Country.

Certain accounting estimates and assumptions used in the preparation of our Condensed Consolidated Financial Statements involve financial projections or depend on factors that are inherently uncertain and challenging to estimate during periods of economic uncertainty. Should the current economic uncertainty persist or worsen, the Company may need to reevaluate these estimates and assumptions, potentially resulting in a material impact on the Company's financial position, assets, or earnings.

In June 2024, the Company entered into the A&R ATSA with Amazon that will result in an increase in the number of Boeing 737-800 cargo aircraft that we operate on behalf of Amazon from 12 to 20. During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service. Subsequent to June 30, 2025, the Company received the eighth and final aircraft. As of the date of this filing, five aircraft were in-service. Cargo revenue will continue to grow during 2025 as all eight additional aircraft are expected to be in-service by the end of the third quarter of 2025. In the near term, the increase in aircraft we operate on behalf of Amazon will result in more resources being allocated to the Cargo business. This aligns with our strategy of long-term flexibility and supports our ability to mitigate the impact of cyclical, economic, and industry downturns on our business.

Components of Operations

For a more detailed discussion on the nature of transactions included in the separate line items of our Condensed Consolidated Statement of Operations, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 in our 2024 10-K.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Operating Statistics

			Three Months Ended June 30, 2025 (1)																								Three Months Ended June 30, 2024 (1)
			Scheduled Service						Charter						Cargo						Total						Scheduled Service						Charter						Cargo						Total
Departures (2)			6,979						2,670						3,645						13,444						7,681						2,537						3,246						13,610
Block hours (2)			21,887						5,489						9,157						37,086						23,400						5,089						8,363						37,281
Aircraft miles (2)			8,447,367						1,882,007						3,482,144						13,965,634						9,010,358						1,755,354						3,170,139						14,077,119
Available seat miles (ASMs) (thousands) (2)			1,571,210						335,137												1,933,871						1,675,927						309,857												2,011,921
Total revenue per ASM (TRASM) (cents) (3)			10.40						16.23												11.26						10.03						16.46												10.89
Average passenger aircraft during the period (4)																					43.7																								42.2
Passenger aircraft at end of period (4)																					45																								44
Cargo aircraft at end of period																					19																								12
Leased Aircraft (5)																					5																								7
Average daily aircraft utilization (hours) (4)																					7.0																								7.5
Average stage length (miles)																					1,071																								1,054
Revenue passengers carried (6)			1,062,295																								1,167,039
Revenue passenger miles (RPMs) (thousands) (6)			1,285,926																								1,392,312
Load factor (6) (7)			81.8		%																						83.1		%
Average base fare per passenger (6)			$	82.97																							$	75.47
Ancillary revenue per passenger (6)			$	68.02																							$	66.24
Total fare per passenger (6)			$	150.99																							$	141.71
Charter revenue per block hour (6)									$	9,887																							$	10,023
Fuel gallons consumed (thousands) (2)			16,835						3,853												20,949						18,019						3,599												21,864
Fuel cost per gallon, excluding indirect fuel credits																					$	2.43																							$	2.86
Employees at end of period																					3,293																								3,079
Cost per available seat mile (CASM) (cents) (8)																					12.79																								12.03
Adjusted CASM (cents) (9)																					8.34																								7.49

______________________

(1)Certain operating statistics and metrics are not presented as they are not calculable or are not utilized by management.

(2)Total System operating statistics for Departures, Block hours, Aircraft miles, ASMs and Fuel gallons consumed include amounts related to flights operated for maintenance; therefore, the Total System amounts are higher than the sum of Scheduled Service, Charter and Cargo amounts.

(3)Scheduled Service TRASM includes Schedule Service revenue, Ancillary revenue, and ASM generating revenue classified within Other revenue on the Condensed Consolidated Statements of Operations.

(4)Scheduled Service and Charter utilize the same fleet of aircraft. Aircraft counts and utilization metrics are shown on a system basis only.

(5)Includes both the Company's Owned Aircraft Held for Operating Lease as well as subleased aircraft. These aircraft are leased to unaffiliated third parties.

(6)Passenger-related statistics and metrics are shown only for Scheduled Service. Charter revenue is driven by flight statistics.

(7)Load factor is a measure of utilized available seating capacity calculated by dividing Scheduled Service RPMs by Scheduled Service ASMs for a reporting period.

(8)CASM is a key airline cost metric. CASM is defined as operating expenses divided by total available seat miles.

(9)Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, and certain other costs that are unrelated to our airline operations.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

			Six Months Ended June 30, 2025 (1)																								Six Months Ended June 30, 2024 (1)
			Scheduled Service						Charter						Cargo						Total						Scheduled Service						Charter						Cargo						Total
Departures (2)			14,445						5,138						6,571						26,408						14,850						4,829						6,207						26,149
Block hours (2)			49,129						10,913						16,763						77,767						48,896						9,989						16,052						75,717
Aircraft miles (2)			19,310,512						3,768,753						6,350,831						29,684,748						19,187,193						3,451,475						6,026,801						28,917,587
Available seat miles (ASMs) (thousands) (2)			3,591,755						666,648												4,304,626						3,568,818						608,915												4,223,807
Total revenue per ASM (TRASM) (cents) (3)			11.09						16.39												11.79						11.18						16.15												11.77
Average passenger aircraft during the period (4)																					43.8																								42.1
Passenger aircraft at end of period (4)																					45																								44
Cargo aircraft at end of period																					19																								12
Leased Aircraft (5)																					5																								7
Average daily aircraft utilization (hours) (4)																					7.7																								7.8
Average stage length (miles)																					1,179																								1,150
Revenue passengers carried (6)			2,227,368																								2,324,550
Revenue passenger miles (RPMs) (thousands) (6)			2,972,410																								3,047,163
Load factor (6) (7)			82.8		%																						85.4		%
Average base fare per passenger (6)			$	104.01																							$	98.63
Ancillary revenue per passenger (6)			$	71.80																							$	70.32
Total fare per passenger (6)			$	175.81																							$	168.95
Charter revenue per block hour (6)									$	9,984																							$	9,842
Fuel gallons consumed (thousands) (2)			38,124						7,553												46,120						38,069						7,032												45,540
Fuel cost per gallon, excluding indirect fuel credits																					$	2.56																							$	2.94
Employees at end of period																					3,293																								3,079
Cost per available seat mile (CASM) (cents) (8)																					12.03																								11.80
Adjusted CASM (cents) (9)																					7.79																								7.28

______________________

(1)Certain operating statistics and metrics are not presented as they are not calculable or are not utilized by management.

(2)Total System operating statistics for Departures, Block hours, Aircraft miles, ASMs and Fuel gallons consumed include amounts related to flights operated for maintenance; therefore, the Total System amounts are higher than the sum of Scheduled Service, Charter and Cargo amounts.

(3)Scheduled Service TRASM includes Schedule Service revenue, Ancillary revenue, and ASM generating revenue classified within Other revenue on the Condensed Consolidated Statements of Operations.

(4)Scheduled Service and Charter utilize the same fleet of aircraft. Aircraft counts and utilization metrics are shown on a system basis only.

(5)Includes both the Company's Owned Aircraft Held for Operating Lease as well as subleased aircraft. These aircraft are leased to unaffiliated third parties.

(6)Passenger-related statistics and metrics are shown only for Scheduled Service. Charter revenue is driven by flight statistics.

(7)Load factor is a measure of utilized available seating capacity calculated by dividing Scheduled Service RPMs by Scheduled Service ASMs for a reporting period.

(8)CASM is a key airline cost metric. CASM is defined as operating expenses divided by total available seat miles.

(9)Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, and certain other costs that are unrelated to our airline operations

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Results of Operations

For the Three Months Ended June 30, 2025 and 2024

			Three Months Ended June 30,												% Change
			2025						2024
Operating Revenues:
Scheduled Service			$	88,138					$	88,078					—		%
Charter			54,271						51,009						6		%
Ancillary			72,259						77,308						(7)		%
Passenger			214,668						216,395						(1)		%
Cargo			34,803						25,447						37		%
Other			14,150						12,539						13		%
Total Operating Revenues			263,621						254,381						4		%
Operating Expenses:
Aircraft Fuel			50,536						62,188						(19)		%
Salaries, Wages, and Benefits			89,557						79,359						13		%
Maintenance			18,250						17,339						5		%
Sales and Marketing			8,001						8,392						(5)		%
Depreciation and Amortization			24,972						23,631						6		%
Ground Handling			11,353						11,368						—		%
Landing Fees and Airport Rent			14,971						13,723						9		%
Special Items, net			49						—						NM
Other Operating, net			29,670						26,016						14		%
Total Operating Expenses			247,359						242,016						2		%
Operating Income			16,262						12,365						32		%
Non-operating Income (Expense):
Interest Income			1,513						1,800						(16)		%
Interest Expense			(9,212)						(11,077)						(17)		%
Other, net			(7)						(4)						75		%
Total Non-operating Expense, net			(7,706)						(9,281)						(17)		%
Income Before Income Tax			8,556						3,084						177		%
Income Tax Expense			1,979						1,272						56		%
Net Income			$	6,577					$	1,812					263		%

“NM” stands for not meaningful

Total Operating Revenues increased $9,240, or 4%, to $263,621 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The increase was primarily the result of growth in Cargo revenue due to additional aircraft received and operated, as well as contractual rate increases under the A&R ATSA. This was partially offset by a slight decrease in Passenger business capacity as we focused our operations on growth in the Cargo business. These items are discussed in further detail below.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Passenger. Passenger revenue decreased $1,727, or 1%, to $214,668 for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024. The table below presents select operating data for lines of revenue within Passenger, expressed as quarter-over-quarter changes:

						Three Months Ended June 30,												% Change
						2025						2024
Scheduled Service and Ancillary Statistics:
			Departures			6,979						7,681						(9)		%
			Block Hours			21,887						23,400						(6)		%
			Passengers			1,062,295						1,167,039						(9)		%
			Average base fare per passenger			$	82.97					$	75.47					10		%
			Ancillary revenue per passenger			$	68.02					$	66.24					3		%
			Total fare per passenger			$	150.99					$	141.71					7		%
			RPMs (thousands)			1,285,926						1,392,312						(8)		%
			ASMs (thousands)			1,571,210						1,675,927						(6)		%
			TRASM (cents)			10.40						10.03						4		%
			Passenger load factor			81.8		%				83.1		%				(1.3)			(1)
Charter Statistics:
			Departures			2,670						2,537						5		%
			Block hours			5,489						5,089						8		%
			Charter revenue per block hour			$	9,887					$	10,023					(1)		%

(1) Percentage point difference

Our quarter-over-quarter results benefited from healthy demand for Scheduled Service, which was slightly offset by reduced capacity as we focused our operations on growth in the Cargo business. This resulted in a 9% decrease in Scheduled Service departures and a 6% decrease in ASMs, which were offset by a 4% increase in TRASM and a 7% increase in total fare per passenger. Ancillary revenues were negatively impacted by the 9% decrease in passengers quarter-over-quarter.

Passenger revenue also benefited from the $3,262, or 6%, increase in Charter revenue during the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. This increase was the result of an 8% increase in block hours, partially offset by a 1% decrease in Charter revenue per block hour. The quarter-over-quarter increase in block hours was due to an increase in flying by large program customers and ad hoc flying. The decrease in Charter revenue per block hour was primarily driven by customer mix and lower fuel recovery revenue due to the quarter-over-quarter decrease in fuel cost per gallon, partially offset by rate increases.

Cargo. Revenue from cargo services increased $9,356, or 37%, to $34,803 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The increase was primarily due to additional aircraft received and operated under the A&R ATSA. During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service by the end of the quarter. Quarter-over-quarter revenue growth was further supported by contractual rate increases.

Other. Other revenue increased $1,611, or 13%, to $14,150 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The increase was driven by end of lease compensation revenue recognized during the three months ended June 30, 2025, due to the return of one Owned Aircraft Held

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(Dollars in thousands, except per share amounts)

(Unaudited)

for Operating Lease that was previously leased to an unaffiliated airline. For more information, see Note 4 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Operating Expenses

Aircraft Fuel. We believe Aircraft Fuel expense, excluding indirect fuel credits, is the best measure of the effect of fuel prices on our business as it consists solely of direct fuel expenses that are related to our operations and is consistent with how management analyzes our operating performance. This measure is defined as GAAP Aircraft Fuel expense, excluding indirect fuel credits that are recognized within Aircraft Fuel expense, but are not directly related to our Fuel Cost per Gallon.

The primary components of Aircraft Fuel expense are shown in the following table:

			Three Months Ended June 30,												% Change
			2025						2024
Total Aircraft Fuel Expense			$	50,536					$	62,188					(19)		%
Indirect Fuel Credits			438						268						63		%
Aircraft Fuel Expense, Excluding Indirect Fuel Credits			$	50,974					$	62,456					(18)		%
Fuel Gallons Consumed (thousands)			20,949						21,864						(4)		%
Fuel Cost per Gallon, Excluding Indirect Fuel Credits			$	2.43					$	2.86					(15)		%

Aircraft Fuel expense decreased 19% quarter-over-quarter due to a 15% decrease in the average fuel cost per gallon and a 4% decrease in fuel consumption due to fewer Scheduled Service aircraft miles flown.

Salaries, Wages, and Benefits. Salaries, Wages, and Benefits expense increased $10,198, or 13%, to $89,557 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The quarter-over-quarter increase in Salaries, Wages, and Benefits was impacted by a 7% increase in employee headcount to support our expanding operations, contractual rate increases for our pilots, and contractual pay increases as a result of new collective bargaining agreements.

Maintenance. Maintenance expense increased $911, or 5%, to $18,250 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The quarter-over-quarter increase in Maintenance expense was primarily driven by growth in our fleet and operations and higher rates for service. These increases were partially offset by a quarter-over-quarter decrease in the number of routine, time-based heavy maintenance and engine maintenance events.

Sales and Marketing. Sales and Marketing expense decreased $391, or 5%, to $8,001 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The quarter-over-quarter decrease was primarily driven by lower booking and credit card transaction fees due to the shift in capacity growth from Scheduled Service to the Cargo business.

Depreciation and Amortization. Depreciation and Amortization expense increased $1,341, or 6%, to $24,972 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The increase was primarily due to growth in our spare parts program to support operations. For the three months ended June 30, 2025 and 2024, there were an average of 51 aircraft that were owned or under finance leases for both periods.

Ground Handling. Ground Handling expense for the three months ended June 30, 2025 was materially consistent with the three months ended June 30, 2024. Quarter-over-quarter rate increases due to market

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

pressures were mostly offset by the 6% decrease in Passenger segment departures as we focused our operations on the growth in Cargo.

Landing Fees and Airport Rent. Landing Fees and Airport Rent increased $1,248, or 9%, to $14,971 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. This quarter-over-quarter increase was driven by rate increases at airports due to market pressures, primarily at Minneapolis – St. Paul International Airport ("MSP"). These were partially offset by a 6% decrease in Passenger segment departures.

Special Items, net. Special Items, net consisted of $49 of ratification bonuses for the new five-year collective bargaining agreement paid to eligible flight attendants during the period, as well as the related payroll tax expense. For more information, see Note 9 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Other Operating, net. Other Operating, net increased $3,654, or 14%, to $29,670 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The increase was primarily the result of an increase in operations and decreased quarter-over-quarter activity from our engine part sales programs.

Non-operating Income (Expense)

Interest Income. Interest income decreased $287, or 16%, to $1,513 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The decrease was primarily due to the reduction in the Company's average investment balance quarter-over-quarter.

Interest Expense. Interest expense decreased $1,865, or 17%, to $9,212 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The decrease was due to quarter-over-quarter decreases in debt balances; as well as the partial refinancing of the Term Loan Credit Facility in December 2024 which resulted in a lower interest rate. For more information on the Company's Debt, see Note 5 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Other, net. Other, net did not have a material impact to either period presented.

Income Tax. The Company's effective tax rate for the three months ended June 30, 2025 was 23.1% compared to 41.2% for the three months ended June 30, 2024. The effective tax rate in both periods was impacted by permanent stock compensation items. For more information on the effective tax rate, see Note 8 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Results of Operations

For the Six Months Ended June 30, 2025 and 2024

			Six Months Ended June 30,												% Change
			2025						2024
Operating Revenues:
Scheduled Service			$	231,660					$	229,272					1		%
Charter			108,963						98,321						11		%
Ancillary			159,933						163,466						(2)		%
Passenger			500,556						491,059						2		%
Cargo			62,960						49,395						27		%
Other			26,754						25,410						5		%
Total Operating Revenues			590,270						565,864						4		%
Operating Expenses:
Aircraft Fuel			115,155						132,492						(13)		%
Salaries, Wages, and Benefits			182,402						161,597						13		%
Maintenance			37,112						34,156						9		%
Sales and Marketing			18,396						19,071						(4)		%
Depreciation and Amortization			49,776						47,440						5		%
Ground Handling			22,760						20,522						11		%
Landing Fees and Airport Rent			31,804						28,452						12		%
Special Items, net			1,848						—						NM
Other Operating, net			58,509						54,593						7		%
Total Operating Expenses			517,762						498,323						4		%
Operating Income			72,508						67,541						7		%
Non-operating Income (Expense):
Interest Income			3,508						4,248						(17)		%
Interest Expense			(18,837)						(22,189)						(15)		%
Other, net			(485)						42						NM
Total Non-operating Expense, net			(15,814)						(17,899)						(12)		%
Income Before Income Tax			56,694						49,642						14		%
Income Tax Expense			13,582						12,517						9		%
Net Income			$	43,112					$	37,125					16		%

Total Operating Revenues increased $24,406, or 4%, to $590,270 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The increase was primarily the result of growth in Cargo revenue due to additional aircraft received and operated, as well as contractual rate increases under the A&R ATSA. Revenue growth for the Passenger business was partially offset by reduced capacity in the second quarter of 2025 as we focused our operations on growth in the Cargo business. These items, as well as other changes to revenue are discussed in further detail below.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Passenger. Passenger revenue increased $9,497, or 2%, to $500,556 for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024. The table below presents select operating data for lines of revenue within Passenger, expressed as year-over-year changes:

						Six Months Ended June 30,												% Change
						2025						2024
Scheduled Service and Ancillary Statistics:
			Departures			14,445						14,850						(3)		%
			Block Hours			49,129						48,896						—		%
			Passengers			2,227,368						2,324,550						(4)		%
			Average base fare per passenger			$	104.01					$	98.63					5		%
			Ancillary revenue per passenger			$	71.80					$	70.32					2		%
			Total fare per passenger			$	175.81					$	168.95					4		%
			RPMs (thousands)			2,972,410						3,047,163						(2)		%
			ASMs (thousands)			3,591,755						3,568,818						1		%
			TRASM (cents)			11.09						11.18						(1)		%
			Passenger load factor			82.8		%				85.4		%				(2.6)			(1)
Charter Statistics:
			Departures			5,138						4,829						6		%
			Block hours			10,913						9,989						9		%
			Charter revenue per block hour			$	9,984					$	9,842					1		%

(1) Percentage point difference

Our year-over-year results benefited from healthy demand for Scheduled Service, which was slightly offset by reduced capacity in the second quarter of 2025 as we focused our operations on growth in the Cargo business. This resulted in a 3% decrease in departures, which was offset by a 4% increase in total fare per passenger. Ancillary revenues were negatively impacted by the 4% year-over-year decrease in passengers.

Passenger revenue also benefited from the $10,642, or 11%, increase in Charter revenue during the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. This increase was the result of a 9% increase in block hours and a 1% increase in Charter revenue per block hour. The year-over-year increase in block hours was due to an increase in flying by large program customers and ad hoc flying. The improvement in Charter revenue per block hour was primarily driven by rate increases, partially offset by customer mix and lower fuel recovery revenue due to the year-over-year decrease in fuel cost per gallon.

Cargo. Revenue from cargo services increased $13,565, or 27%, to $62,960 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The increase was primarily due to additional aircraft and contractual rate increases. During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service by the end of the second quarter.

Other. Other revenue increased $1,344, or 5%, to $26,754 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The increase was driven by end of lease compensation revenue recognized during the six months ended June 30, 2025, due to the return of one Owned Aircraft Held for Operating Lease that was previously leased to an unaffiliated airline. For more information, see Note 4 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Operating Expenses

Aircraft Fuel. We believe Aircraft Fuel expense, excluding indirect fuel credits, is the best measure of the effect of fuel prices on our business as it consists solely of direct fuel expenses that are related to our operations and is consistent with how management analyzes our operating performance. This measure is defined as GAAP Aircraft Fuel expense, excluding indirect fuel credits that are recognized within Aircraft Fuel expense, but are not directly related to our Fuel Cost per Gallon.

The primary components of Aircraft Fuel expense are shown in the following table:

			Six Months Ended June 30,												% Change
			2025						2024
Total Aircraft Fuel Expense			$	115,155					$	132,492					(13)		%
Indirect Fuel Credits			2,690						1,222						120		%
Aircraft Fuel Expense, Excluding Indirect Fuel Credits			$	117,845					$	133,714					(12)		%
Fuel Gallons Consumed (thousands)			46,120						45,540						1		%
Fuel Cost per Gallon, Excluding Indirect Fuel Credits			$	2.56					$	2.94					(13)		%

Aircraft Fuel expense decreased 13% year-over-year due to a 13% decrease in the average fuel cost per gallon. This was partially offset by a 1% increase in consumption as a result of our operational growth.

Salaries, Wages, and Benefits. Salaries, Wages, and Benefits expense increased $20,805, or 13%, to $182,402 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The year-over-year increase in Salaries, Wages, and Benefits was impacted by a 7% increase in employee headcount to support the increase in total system block hours as a result of operational growth, contractual rate increases for our pilots, and contractual pay increases as a result of new collective bargaining agreements.

Maintenance. Maintenance expense increased $2,956, or 9%, to $37,112 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The year-over-year increase in Maintenance expense was primarily driven by growth in our fleet and operations and higher rates for service. These increases were partially offset by a year-over-year decrease in the number of routine, time-based heavy maintenance events.

Sales and Marketing. Sales and Marketing expense decreased $675, or 4%, to $18,396 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The year-over-year decrease was primarily driven by lower booking and credit card transaction fees due to the shift in capacity growth from Scheduled Service to the Cargo business.

Depreciation and Amortization. Depreciation and Amortization expense increased $2,336, or 5%, to $49,776 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The increase was primarily due to the impact of a change in the composition of our aircraft fleet that resulted in an increased number of owned aircraft and aircraft under finance leases, as well as growth in our spare parts program. For the six months ended June 30, 2025 and 2024, there were an average of 51 and 50 aircraft that were owned or under finance leases, respectively.

Ground Handling. Ground Handling expense increased $2,238, or 11%, to $22,760, for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. This year-over-year increase was the result of rate increases due to market pressures.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Landing Fees and Airport Rent. Landing Fees and Airport Rent increased $3,352, or 12%, to $31,804 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. This year-over-year increase was driven by rate increases at airports due to market pressures, primarily at MSP.

Special Items, net. Special Items, net consisted of $1,848 of ratification bonuses for the new five-year collective bargaining agreement paid to eligible flight attendants during the period, as well as the related payroll tax expense. For more information, see Note 9 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Other Operating, net. Other Operating, net increased $3,916, or 7%, to $58,509 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The increase was primarily the result of an increase in operations.

Non-operating Income (Expense)

Interest Income. Interest income decreased $740, or 17%, to $3,508 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The decrease was primarily due to the reduction in the Company's average investment balance year-over-year.

Interest Expense. Interest expense decreased $3,352, or 15%, to $18,837 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The decrease was due to year-over-year decreases in debt balances, as well as the partial refinancing of the Term Loan Credit Facility in December 2024 which resulted in a lower interest rate. For more information on the Company's Debt, see Note 5 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Other, net. Other, net expense totaled $485 for the six months ended June 30, 2025, as a result of the Company incurring expenses of $481 in conjunction with the secondary public offering. Other, net for the six months ended June 30, 2024 was not material. For more information on the secondary public offering, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Income Tax. The Company's effective tax rate for the six months ended June 30, 2025 was 24.0% compared to 25.2% for the six months ended June 30, 2024. The effective tax rate in both periods was impacted by permanent stock compensation items. For more information on the effective tax rate, see Note 8 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Segments

For the Three Months Ended June 30, 2025 and 2024

			Three Months Ended June 30, 2025																		Three Months Ended June 30, 2024
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	228,818					$	34,803					$	263,621					$	228,934					$	25,447					$	254,381
Operating Expenses:
Aircraft Fuel			50,465						71						50,536						62,180						8						62,188
Salaries, Wages, and Benefits			68,476						21,081						89,557						62,508						16,851						79,359
Maintenance			13,438						4,812						18,250						13,853						3,486						17,339
Sales and Marketing			8,001						—						8,001						8,392						—						8,392
Depreciation and Amortization			24,967						5						24,972						23,626						5						23,631
Ground Handling			11,353						—						11,353						11,368						—						11,368
Landing Fees and Airport Rent			14,801						170						14,971						13,575						148						13,723
Special Items, net			49						—						49						—						—						—
Other Operating, net			23,257						6,413						29,670						20,891						5,125						26,016
Total Operating Expenses			214,807						32,552						247,359						216,393						25,623						242,016
Operating Income (Loss)			$	14,011					$	2,251					$	16,262					$	12,541					$	(176)					$	12,365
Operating Margin %			6.1		%				6.5		%				6.2		%				5.5		%				(0.7)		%				4.9		%

Passenger. Passenger Operating Income increased $1,470 to $14,011 for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. The Operating Margin Percentage for the three months ended June 30, 2025 increased by 0.6 percentage point, as compared to the three months ended June 30, 2024. Passenger revenue was materially consistent quarter-over-quarter due to reduced capacity as we focused our operations on growth in the Cargo business. The quarter-over-quarter increase in Passenger Operating Income and Operating Margin Percentage were primarily driven by a 15% decrease in the average fuel cost per gallon, partially offset by increased expenses as a result of operational growth, contractual rate increases for our pilots, contractual pay increases as a result of new collective bargaining agreements, and rate increases for Landing Fees and Airport Rent. For more information on the changes in the components of Operating Income for the Passenger segment, refer to the Results of Operations discussion above.

Cargo. Cargo Operating Income (Loss) changed by $2,427, to $2,251, for the three months ended June 30, 2025, as compared to the three months ended June 30, 2024. Operating Margin Percentage for the three months ended June 30, 2025 improved by 7.2 percentage points, as compared to the three months ended June 30, 2024. The changes in both Operating Income (Loss) and Operating Margin Percentage were primarily driven by contractual rate increases. Further, during the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service by the end of the quarter. For more information on the components of Operating Income (Loss) for the Cargo segment, refer to the Results of Operations discussion above.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Segments

For the Six Months Ended June 30, 2025 and 2024

			Six Months Ended June 30, 2025																		Six Months Ended June 30, 2024
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	527,310					$	62,960					$	590,270					$	516,469					$	49,395					$	565,864
Operating Expenses:
Aircraft Fuel			115,084						71						115,155						132,484						8						132,492
Salaries, Wages, and Benefits			143,659						38,743						182,402						128,096						33,501						161,597
Maintenance			28,781						8,331						37,112						27,257						6,899						34,156
Sales and Marketing			18,396						—						18,396						19,071						—						19,071
Depreciation and Amortization			49,766						10						49,776						47,430						10						47,440
Ground Handling			22,760						—						22,760						20,513						9						20,522
Landing Fees and Airport Rent			31,485						319						31,804						28,151						301						28,452
Special Items, net			1,848						—						1,848						—						—						—
Other Operating, net			46,800						11,709						58,509						44,395						10,198						54,593
Total Operating Expenses			458,579						59,183						517,762						447,397						50,926						498,323
Operating Income (Loss)			$	68,731					$	3,777					$	72,508					$	69,072					$	(1,531)					$	67,541
Operating Margin %			13.0		%				6.0		%				12.3		%				13.4		%				(3.1)		%				11.9		%

Passenger. Passenger Operating Income decreased $341 to $68,731 for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The Operating Margin Percentage for the six months ended June 30, 2025 decreased by 0.4 percentage point, as compared to the six months ended June 30, 2024. Passenger results for the six months ended June 30, 2025 were impacted by reduced capacity in the second quarter of 2025 as we focused our operations on growth in the Cargo business. The year-over-year decrease in Passenger Operating Income and Operating Margin Percentage were primarily driven by increased expenses as a result of operational growth, contractual rate increases for our pilots, contractual pay increases as a result of new collective bargaining agreements, rate increases for Ground Handling and Landing Fees and Airport Rent, and the ratification bonus paid to eligible flight attendants during the period; partially offset by a 13% decrease in the average fuel cost per gallon. These expense increases were partially offset by revenue growth, primarily driven by the Charter line of business. For more information on the changes in the components of Operating Income for the Passenger segment, refer to the Results of Operations discussion above.

Cargo. Cargo Operating Income (Loss) changed by $5,308, to $3,777, for the six months ended June 30, 2025, as compared to the six months ended June 30, 2024. The Operating Margin Percentage for the six months ended June 30, 2025 improved by 9.1%, as compared to the six months ended June 30, 2024. The changes in both Operating Income (Loss) and Operating Margin Percentage were primarily driven by contractual rate increases. Further, during the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service by the end of the quarter. For more information on the components of Operating Income (Loss) for the Cargo segment, refer to the Results of Operations discussion above.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Non-GAAP Financial Measures

We sometimes use information that is derived from the Condensed Consolidated Financial Statements, but that is not presented in accordance with GAAP. We believe these non-GAAP measures provide a meaningful comparison of our results to others in the airline industry and our prior year results. Investors should consider these non-GAAP financial measures in addition to, and not as a substitute for, our financial performance measures prepared in accordance with GAAP. Further, our non-GAAP information may be different from the non-GAAP information provided by other companies. We believe certain charges included in our operating expenses on a GAAP basis make it difficult to compare our current period results to prior periods as well as future periods and guidance. The tables below show a reconciliation of non-GAAP financial measures used in this report to the most directly comparable GAAP financial measures.

Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income and Adjusted EBITDA

Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income, and Adjusted EBITDA are non-GAAP measures included as supplemental disclosure because we believe they are useful indicators of our operating performance. Derivations of Operating Income and Net Income are well recognized performance measurements in the airline industry that are frequently used by our management, as well as by investors, securities analysts and other interested parties in comparing the operating performance of companies in our industry.

The measures described above have limitations as analytical tools. Some of the limitations applicable to these measures include: they do not reflect the impact of certain cash and non-cash charges resulting from matters we consider not to be indicative of our ongoing operations; and other companies in our industry may calculate these non-GAAP measures differently than we do, limiting each measure’s usefulness as a comparative measure. Because of these limitations, the following non-GAAP measures should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP and may not be the same as or comparable to similarly titled measures presented by other companies due to the possible differences in the method of calculation and in the items being adjusted.

For the foregoing reasons, Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income and Adjusted EBITDA have significant limitations which affect their use as indicators of our profitability. Accordingly, readers are cautioned not to place undue reliance on this information.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

The following table presents the reconciliation of Operating Income to Adjusted Operating Income, and Adjusted Operating Income Margin for the periods presented below.

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Adjusted Operating Income Margin Reconciliation:
Operating Revenue			$	263,621					$	254,381					$	590,270					$	565,864
Operating Income			16,262						12,365						72,508						67,541
Special Items, net (1)			49						—						1,848						—
Stock Compensation Expense			1,559						1,570						3,254						3,084
Adjusted Operating Income			$	17,870					$	13,935					$	77,610					$	70,625
Operating Income Margin			6.2		%				4.9		%				12.3		%				11.9		%
Adjusted Operating Income Margin			6.8		%				5.5		%				13.1		%				12.5		%

_________________________

(1) The adjustments include Special Items, net, as included in Note 9 of these Condensed Consolidated Financial Statements.

The following table presents the reconciliation of Net Income to Adjusted Net Income for the periods presented below.

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Adjusted Net Income Reconciliation:
Net Income			$	6,577					$	1,812					$	43,112					$	37,125
Special Items, net (1)			49						—						1,848						—
Stock Compensation Expense			1,559						1,570						3,254						3,084
Loss on Credit Facility			—						—						186						—
Secondary Offering Costs			—						—						481						—
Income Tax Effect of Adjusting Items, net (2)			(370)						(361)						(1,327)						(709)
Adjusted Net Income			$	7,815					$	3,021					$	47,554					$	39,500

_________________________

(1)			The adjustments include Special Items, net, as included in Note 9 of these Condensed Consolidated Financial Statements.
(2)			The tax effect of adjusting items, net is calculated at the Company's statutory rate for the applicable period.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

The following table presents the reconciliation of Net Income to Adjusted EBITDA for the periods presented below.

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
Adjusted EBITDA Reconciliation:
Net Income			$	6,577					$	1,812					$	43,112					$	37,125
Special Items, net (1)			49						—						1,848						—
Stock Compensation Expense			1,559						1,570						3,254						3,084
Secondary Offering Costs			—						—						481						—
Interest Income			(1,513)						(1,800)						(3,508)						(4,248)
Interest Expense			9,212						11,077						18,837						22,189
Provision for Income Taxes			1,979						1,272						13,582						12,517
Depreciation and Amortization			24,972						23,631						49,776						47,440
Adjusted EBITDA			$	42,835					$	37,562					$	127,382					$	118,107

_________________________

(1) The adjustments include Special Items, net, as included in Note 9 of these Condensed Consolidated Financial Statements.

CASM and Adjusted CASM

CASM is a key airline cost metric defined as operating expenses divided by total available seat miles. Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, depreciation and amortization recognized on certain assets that generate lease income, stock-based compensation, certain commissions and other costs of selling our vacation products from this measure as these costs are unrelated to our airline operations and improve comparability to our peers. Adjusted CASM is an important measure used by management and our Board of Directors in assessing quarterly and annual cost performance. Adjusted CASM is commonly used by industry analysts and we believe it is an important metric by which they compare our airline to others in the industry, although other airlines may exclude certain other costs in their calculation of Adjusted CASM. The measure is also the subject of frequent questions from investors.

Adjusted CASM excludes fuel costs. By excluding volatile fuel expenses that are outside of our control from our unit metrics, we believe that we have better visibility into the results of operations and our non-fuel cost initiatives. Our industry is highly competitive and is characterized by high fixed costs, so even a small reduction in non-fuel operating costs can lead to a significant improvement in operating results. In addition, we believe that all domestic carriers are similarly impacted by changes in jet fuel costs over the long run, so it is important for management and investors to understand the impact and trends in company-specific cost drivers, such as labor rates, aircraft costs and maintenance costs, and productivity, which are more controllable by management.

We have excluded costs related to the Cargo operations, as well as depreciation and amortization recognized on certain assets that generate lease income as these operations do not create ASMs. The Cargo expenses in the reconciliation below are different from the total operating expenses for our Cargo segment in the “Segment Information” table presented above, due to several items that are included in the Cargo segment, but have been captured in other line items used in the Adjusted CASM calculation. The Company has entered into certain transactions where it serves as a lessor. As of June 30, 2025, we leased or subleased five aircraft. Adjusted CASM further excludes special items and other adjustments, as defined in the relevant reporting period, that are not representative of the ongoing costs necessary to our airline operations and may improve comparability between periods. We also exclude stock compensation expense when computing Adjusted CASM. The

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Company’s compensation strategy includes the use of stock-based compensation to attract and retain employees and executives and is principally aimed at aligning their interests with those of our stockholders and long-term employee retention, rather than to motivate or reward operational performance for any period. Thus, stock-based compensation expense varies for reasons that are generally unrelated to operational decisions and performance in any period.

As derivations of Adjusted CASM are not determined in accordance with GAAP, such measures are susceptible to varying calculations and not all companies calculate the measures in the same manner. As a result, derivations of Adjusted CASM as presented may not be directly comparable to similarly titled measures presented by other companies. Adjusted CASM should not be considered in isolation or as a replacement for CASM. For the aforementioned reasons, Adjusted CASM has significant limitations which affect its use as an indicator of our profitability. Accordingly, readers are cautioned not to place undue reliance on this information.

The following tables present the reconciliation of CASM to Adjusted CASM:

			Three Months Ended June 30,
			2025												2024
			Operating Expenses						Per ASM (in cents)						Operating Expenses						Per ASM (in cents)
CASM			$	247,359					12.79						$	242,016					12.03
Less:
Special Items, net (1)			49						—						—						—
Aircraft Fuel			50,536						2.61						62,188						3.09
Stock Compensation Expense			1,559						0.08						1,570						0.08
Cargo Expenses, Not Already Adjusted Above			32,097						1.66						25,278						1.26
Sun Country Vacations			233						0.01						254						0.01
Leased Aircraft, Depreciation and Amortization Expense (2)			1,529						0.09						2,069						0.10
Adjusted CASM			$	161,356					8.34						$	150,657					7.49
ASM (thousands)			1,933,871												2,011,921

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

			Six Months Ended June 30,
			2025												2024
			Operating Expenses						Per ASM (in cents)						Operating Expenses						Per ASM (in cents)
CASM			$	517,762					12.03						$	498,323					11.80
Less:
Special Items, net (1)			1,848						0.04						—						—
Aircraft Fuel			115,155						2.68						132,492						3.14
Stock Compensation Expense			3,254						0.08						3,084						0.07
Cargo Expenses, Not Already Adjusted Above			58,360						1.36						50,248						1.19
Sun Country Vacations			730						0.02						793						0.02
Leased Aircraft, Depreciation and Amortization Expense (2)			3,141						0.06						4,320						0.10
Adjusted CASM			$	335,274					7.79						$	307,386					7.28
ASM (thousands)			4,304,626												4,223,807

_________________________

(1)			The adjustments include Special Items, net, as included in Note 9 of these Condensed Consolidated Financial Statements.
(2)			Includes both the Company's Owned Aircraft Held for Operating Lease as well as subleased aircraft. These aircraft are leased to unaffiliated third parties.

Liquidity and Capital Resources

Our primary sources of liquidity as of June 30, 2025 included our existing cash and cash equivalents of $36,964 and short-term investments of $101,337, our expected cash generated from operations, and the $75,000 of available funds under the Revolving Credit Facility. We invest cash and cash equivalents in highly liquid securities with strong credit ratings. We classify our investments as current assets because of their highly liquid nature and availability to be converted into cash to fund current operations. Given the significant portion of our portfolio held in cash and cash equivalents and the high credit quality of our debt security investments, we do not anticipate fluctuations in the aggregate fair value of our investments to have a material impact on our liquidity or capital position.

In addition, we had restricted cash of $16,346 as of June 30, 2025, which generally consists of cash received as prepayment for chartered flights that is maintained in separate escrow accounts prior to the date of transportation in accordance with DOT regulations. The restrictions are released once the charter transportation is provided.

We believe our unrestricted cash and cash equivalents, short-term investments, and availability under our Revolving Credit Facility, combined with expected future cash flows from operations, will be sufficient to fund our operations and meet our debt payment obligations for at least the next 12 months. However, we cannot predict what the effect on our business and financial position might be from a change in the competitive environment in which we operate or from events beyond our control, such as volatile fuel prices, economic conditions, pandemics, weather-related disruptions, the impact of airline bankruptcies, restructurings or consolidations, U.S. military actions, regulations, or acts of terrorism.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

For a more detailed discussion on our Liquidity and Capital Resources, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 in our 2024 10-K.

Aircraft – We do not maintain an aircraft order book; instead, we enter into aircraft transactions on an opportunistic basis based on market conditions, our prevailing level of liquidity and capital market availability. As a result, we are not locked into large future capital expenditures. We have historically financed aircraft through debt and finance leases. As of June 30, 2025, our fleet consisted of 69 Boeing 737-NG aircraft. This includes 45 aircraft in the passenger fleet, 19 cargo aircraft operated or received pursuant to the A&R ATSA, and five aircraft currently on lease to unaffiliated airlines.

During the six months ended June 30, 2025, the Company received seven additional cargo aircraft under the A&R ATSA, of which three aircraft were in-service by the end of the quarter. Subsequent to June 30, 2025, the Company received the eighth and final aircraft. As of the date of this filing, five aircraft were in-service. All eight additional aircraft are expected to be in-service by the end of the third quarter of 2025. For more information on our fleet, see Note 4 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Maintenance Deposits - In addition to funding the acquisition of aircraft, we are required by certain of our aircraft lessors to fund cash reserves in advance for scheduled maintenance to act as collateral for the benefit of the lessors. Qualifying payments that are expected to be recovered from lessors are recorded as Lessor Maintenance Deposits on our Condensed Consolidated Balance Sheets. As of June 30, 2025, we had $60,717 of total Lessor Maintenance Deposits. All maintenance deposits as of June 30, 2025 are estimated to be recoverable either through reimbursable maintenance events or through application towards the purchase of the aircraft.

Credit Facilities - We use our Credit Facilities to provide liquidity for general corporate purposes and to finance the acquisition of aircraft. In March 2025, the Company executed a new $75,000 Revolving Credit Facility with a group of lenders. The new Revolving Credit Facility replaces the Company's previous $25,000 revolving credit facility. The Company pledged certain assets, including certain previously unencumbered aircraft, to support the ability to efficiently utilize the Revolving Credit Facility. As of June 30, 2025, the Company had $75,000 of financing available through the Revolving Credit Facility. The Company was in compliance with its covenants within the Revolving Credit Facility as of June 30, 2025.

Debt - At our discretion, we obtain debt financing in order to purchase or refinance aircraft. The Company has not entered into any new debt financing arrangements during the six months ended June 30, 2025.

For more information on our credit facilities or debt, see Note 5 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

TRA Liability - During the six months ended June 30, 2025 and 2024, we made payments of $10,525 and $3,350 to the TRA holders, respectively. Payments will be made in future periods as Pre-IPO Tax Attributes are utilized. For more information on the TRA liability, see Note 8 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Liquidity and Financial Condition Indicators

The table below presents the major indicators of financial condition and liquidity:

			June 30, 2025						December 31, 2024
Cash and Cash Equivalents			$	36,964					$	83,219
Available-for-Sale Securities			94,644						97,636
Amount Available Under Revolving Credit Facility			75,000						24,743
Total Liquidity			$	206,608					$	205,598
			June 30, 2025						December 31, 2024
Total Debt, net			$	282,067					$	327,122
Finance Lease Obligations			261,335						271,262
Operating Lease Obligations			19,040						20,650
Total Debt, net, and Lease Obligations			562,442						619,034
Stockholders' Equity			613,045						570,373
Total Invested Capital			$	1,175,487					$	1,189,407
Debt-to-Capital			0.48						0.52

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Sources and Uses of Liquidity

			Six Months Ended June 30,												%
			2025						2024						Change
Total Operating Activities			$	36,252					$	38,872					(7)		%
Investing Activities:
Purchases of Property & Equipment			(21,204)						(38,231)						(45)		%
Purchases of Investments			(28,034)						(31,610)						(11)		%
Proceeds from the Maturities of Investments			30,979						64,500						(52)		%
Other, net			10,248						8,863						16		%
Total Investing Activities			(8,011)						3,522						(327)		%
Financing Activities:
Common Stock Repurchases			(10,000)						(11,493)						(13)		%
Proceeds from Borrowing			—						10,000						(100)		%
Repayment of Finance Lease Obligations			(9,926)						(20,870)						(52)		%
Repayment of Borrowings			(45,628)						(46,767)						(2)		%
Tax Receivable Agreement Payment			(10,525)						(3,350)						214		%
Other, net			677						443						53		%
Total Financing Activities			(75,402)						(72,037)						5		%
Net Decrease in Cash			$	(47,161)					$	(29,643)					59		%

"Cash" consists of Cash, Cash Equivalents and Restricted Cash

Operating Cash Flow Activities

Operating activities in the six months ended June 30, 2025 provided $36,252, as compared to $38,872 during the six months ended June 30, 2024. During the six months ended June 30, 2025, our Net Income was $43,112, as compared to $37,125 during the six months ended June 30, 2024.

Our operating cash flow is primarily impacted by the following factors:

Seasonality of Advance Ticket Sales. We sell tickets for air travel in advance of the customer's travel date. When we receive a cash payment at the time of sale, we record the cash received on advance sales as deferred revenue in Air Traffic Liabilities. Air Traffic Liabilities typically increase during the fall and early winter months as advanced ticket sales grow prior to the late winter and spring peak travel season and decrease during the summer months. Most tickets can be purchased no more than 12 months in advance, therefore any revenue associated with tickets sold for future travel will be recognized within that timeframe. For the six months ended June 30, 2025, $151,101 of revenue recognized in Passenger revenue was included in the $160,686 of Air Traffic Liabilities as of December 31, 2024. Air Traffic Liabilities were $106,599 as of June 30, 2025 as a result of decreased Scheduled Service capacity as we focused our operations on growth in the Cargo business.

Aircraft Fuel. Aircraft Fuel expense represented approximately 22% and 27% of our total operating expense for the six months ended June 30, 2025 and 2024, respectively. The market price for jet fuel is volatile, which can impact the comparability of our periodic cash flows from operations. Fuel cost per gallon decreased by 13% year-over-year. Fuel consumption increased by 1% during the six months ended June 30, 2025, compared to the prior year as a result of the increase in fleet size and total operations. We expect continued volatility in Aircraft Fuel prices per gallon due to market conditions and global geopolitical events.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Investing Cash Flow Activities

Capital Expenditures. Our capital expenditures were $21,204 and $38,231 for the six months ended June 30, 2025 and 2024, respectively. Our capital expenditures during the six months ended June 30, 2025 included the acquisition of one engine, spare parts, and other items not individually material. Our capital expenditures during the six months ended June 30, 2024 included the acquisition of one aircraft and other items not individually material.

Investments. The Company's net investment activity resulted in cash inflows of $2,945 during the six months ended June 30, 2025, as compared to cash inflows of $32,890 during the six months ended June 30, 2024. The year-over-year change is a result of a reduction in the Company's average investment balance year-over-year in order to support general corporate purposes and debt repayments.

Financing Cash Flow Activities

Debt. At our discretion, we obtain debt financing in order to purchase or refinance aircraft. The Company has not entered into any new debt financing arrangements during the periods presented above. For more information on our debt financings and future repayment schedules, see Note 5 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Finance Leases. Our repayments of finance lease obligations were $9,926 and $20,870 for the six months ended June 30, 2025 and 2024, respectively. During the six months ended June 30, 2024, the Company purchased an aircraft previously classified as a finance lease. The resulting cash outflows of $9,670 were recorded as payments for finance lease obligations. As of June 30, 2025 and 2024, the Company had 13 and 15 aircraft finance leases, respectively.

Common Stock Repurchases. During the six months ended June 30, 2025, the Company repurchased 630,914 shares of its Common Stock at $15.85 per share. During the six months ended June 30, 2024, the Company repurchased 755,284 shares of its Common Stock at $15.22 per share. For more information on the stock repurchase program, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

TRA Payment. During the six months ended June 30, 2025 and 2024, the Company made payments of $10,525 and $3,350 to the TRA holders, respectively. For more information on the payment of the TRA, see Note 8 of the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

Off Balance Sheet Arrangements

For a detailed discussion on the nature of the Company's Off Balance Sheet Arrangements, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 in our 2024 10-K. There have been no material changes to the Company's Off Balance Sheet Arrangements as compared to the 2024 10-K.

Commitments and Contractual Obligations

See Note 11 to our Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for more information regarding commitments and contractual obligations.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Recently Adopted Accounting Pronouncements

During the six months ended June 30, 2025, there were no recently adopted accounting standards that had a material impact to the Company.

Critical Accounting Policies and Estimates

Our unaudited Condensed Consolidated Financial Statements and the accompanying notes thereto included elsewhere in this Quarterly Report on Form 10-Q are prepared in accordance with GAAP. The preparation of the Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses, and various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ significantly from our estimates. To the extent that there are differences between our estimates and actual results, our future financial statement presentation, financial condition, results of operations, and cash flows will be affected. For more information on our critical accounting policies, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections within Part II, Item 7, respectively, in our 2024 10-K.

There have been no material changes to our critical accounting policies and estimates as compared to the 2024 10-K.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are subject to market risks in the ordinary course of our business. These risks include commodity price risk, specifically with respect to aircraft fuel, as well as interest rate risk. The adverse effects of changes in these markets could pose a potential loss. There have been no material changes in market risk from those disclosed within "Item 7A. Quantitative and Qualitative Disclosures About Market Risk" included in Part II, Item 7A, of our 2024 10-K.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures represent controls and procedures that are designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Interim Chief Financial Officer, to allow timely decisions regarding required disclosure.

In connection with the preparation of this Form 10-Q, pursuant to Rule 13a-15(b) of the Exchange Act, our management, with the participation of our Chief Executive Officer and Interim Chief Financial Officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of June 30, 2025.

Based on the evaluation of our disclosure controls and procedures as of June 30, 2025, our Chief Executive Officer and Interim Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of June 30, 2025.

Changes in Internal Control Over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2025 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are subject to commercial litigation claims and to administrative and regulatory proceedings and reviews that may be asserted or maintained from time to time. We currently believe that the ultimate outcome of such lawsuits, proceedings and reviews will not, individually or in the aggregate, have a material adverse effect on our financial position, liquidity or results of operations.

ITEM 1A. RISK FACTORS

We have disclosed under the heading “Risk Factors” in our 2024 10-K the risk factors which materially affect our business, financial condition or results of operations. There have been no material changes from the risk factors previously disclosed. You should carefully consider the risk factors set forth in our 2024 10-K. You should be aware that these risk factors and other information may not describe every risk facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

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ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not Applicable.

ITEM 5. OTHER INFORMATION

During the three months ended June 30, 2025, our directors and executive officers did not adopt, terminate, or modify any instructions or written plans for the sale or purchase of our securities that would be intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

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ITEM 6. EXHIBITS

(a)Exhibits

31.1*			Certification by Sun Country's Chief Executive Officer with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2025
31.2*			Certification by Sun Country’s Interim Chief Financial Officer and Senior Vice President with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2025
32*			Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code by Sun Country Airlines Holdings, Inc.’s Chief Executive Officer and Interim Chief Financial Officer with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2025
101.INS*			Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document
101.SCH*			Inline XBRL Taxonomy Extension Schema Document
101.CAL*			Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*			Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*			Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE*			Inline XBRL Taxonomy Extension Presentation Linkbase Document
104*			Cover Page Interactive Data Files (formatted as inline XBRL and contained in Exhibit 101)

*			Filed herewith
#			Certain portions of this exhibit have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K. The Company agrees to furnish supplementally an unredacted copy of the exhibit to the Securities and Exchange Commission upon its request.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Sun Country Airlines Holdings, Inc.
(Registrant)

/s/ William Trousdale

William Trousdale

Interim Chief Financial Officer and Senior Vice President
(Principal Financial and Accounting Officer)

August 1, 2025

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FAQ

How did SNCY’s Q2 2025 earnings compare to the prior year?

Net income climbed to $6.6 million ($0.12 diluted EPS) from $1.8 million ($0.03) in Q2 2024.

What drove the sharp increase in Sun Country’s cargo revenue?

Cargo revenue rose 37% as the airline increased Amazon-operated 737-800s from 12 to 19 aircraft and benefited from contractual rate escalators.

What is Sun Country’s current liquidity position?

As of June 30 2025, cash & restricted cash totaled $53.3 million; the company also has an undrawn $75 million revolving credit facility.

How large is Sun Country’s fleet after the quarter?

The fleet comprises 69 Boeing 737-NG aircraft: 45 passenger, 19 cargo, and 5 leased to third parties.

Did Sun Country repurchase any shares in 2025?

Yes. It bought back 630,914 shares for $10 million in Q1 and has a new $25 million authorization remaining.