Filed pursuant to Rule 424(b)(5)
Registration No. 333-285000
PROSPECTUS SUPPLEMENT
(to prospectus dated March 25, 2025)
New Horizon Aircraft Ltd.

Up to $16,500,000
Common Shares
This Prospectus Supplement
amends and supplements the information in the prospectus supplement, dated March 25, 2025 (the “Original Prospectus Supplement”),
and the accompanying prospectus dated March 25, 2025 (collectively, the “Prior Prospectus”). This Prospectus Supplement should
be read in conjunction with the Prior Prospectus, and is qualified by reference thereto, except to the extent that the information herein
amends or supersedes the information contained in the Prior Prospectus. This Prospectus Supplement is not complete without, and may only
be delivered or utilized in connection with, the Prior Prospectus, and any future amendments or supplements thereto.
Under the Prior Prospectus, we
registered up to $6,250,000 of our Class A ordinary shares, without par value (the “Common Shares”), relating to the offer
and sale of our Common Shares from time to time through or to JonesTrading Institutional Services LLC (“Jones”), acting as
sales agent in “at the market” offerings as defined in Rule 415 under the Securities Act of 1933, as amended, pursuant to
that certain Capital on Demand™ Sales Agreement, dated as of February 14, 2025, between us and Jones (the “Sales Agreement”).
As of June 27, 2025, the aggregate
market value of our outstanding Common Shares held by non-affiliates (“public float”) was approximately $65.4 million, which
we calculated based on 37,415,861 outstanding Common Shares, of which 28,698,633 Common Shares were held by non-affiliates, and a price
per share of $2.28 as of June 18, 2025, which is a date within 60 days prior to the date of this Prospectus Supplement. Pursuant to General
Instruction I.B.6 of Form S-3, in no event will we sell, pursuant to the registration statement, of which this Prospectus Supplement
is a part, securities in a public primary offering with a value exceeding one-third of our public float in any 12-month period, so long
as our public float remains below $75 million. During the 12 calendar months prior to and including the date of this Prospectus Supplement,
we have offered and sold 3,340,714 Common Shares for approximately $5.1 million pursuant to General Instruction I.B.6 of Form S-3.
We
are filing this Prospectus Supplement to amend the Prior Prospectus to increase the maximum amount of shares that we are eligible to
sell pursuant to the Sales Agreement under General Instruction I.B.6 of Form S-3. As a result of these limitations, we may currently
offer and pursuant to this Prospectus Supplement are registering Common Shares having an aggregate offering price of up to $16,500,000.
In the event that our public float increases or decreases, we may sell securities in public primary offerings on Form S-3 with a value
up to one-third of our public float, in each case calculated pursuant to General Instruction I.B.6 of Form S-3 and subject to the terms
of the Sales Agreement. In the event that our public float increases above $75.0 million, we will no longer be subject to the limitations
of General Instruction I.B.6 of Form S-3.
Our Common Shares are listed on the Nasdaq Capital Market (“Nasdaq”)
under the symbol “HOVR”. On June 27, 2025, the last reported sale price of our Common Shares on Nasdaq was $1.74 per share.
We are an emerging growth
company and a smaller reporting company under the federal securities laws and, as such, are subject to certain reduced public company
reporting requirements. See “Prospectus Summary — Implications of Being an Emerging Growth Company and a Smaller Reporting
Company” on page S-1 of the Original Prospectus Supplement.
Investing in our securities
involves a high degree of risk. You should review carefully the risks and uncertainties referenced under the heading “Risk Factors”
beginning on page S-5 of the Original Prospectus Supplement, page 4 of the accompany prospectus and under similar headings in the documents
that are incorporated by reference into the Prior Prospectus.
Neither the Securities
and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy
or accuracy of this Prospectus Supplement or the Prior Prospectus. Any representation to the contrary is a criminal offense.
The date of this prospectus supplement is June
27, 2025.