UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

_______________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 9, 2026

Allegiant Travel Company

______________________________________________

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (702) 851-7300

N/A

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as in Rule 405 of the Securities Act of 1933 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter).

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. ☐

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Item 8.01 Other Events.

On June 9, 2026, the Company announced that it has agreed to sell $650.0 million in aggregate principal amount of its 7.125% Senior Secured Notes due 2031 (the “Notes”) at an offering price of 99.479% of their principal amount to investors in a private offering. The size of the offering was increased by $150.0 million from the previously announced offering size of $500.0 million. The Notes are expected to be issued on June 24, 2026, subject to customary closing conditions.

The Company’s press release announcing the pricing of the Notes is attached hereto as Exhibit 99.1 and incorporated by reference herein.

This Current Report on Form 8-K does not constitute an offer to sell or the solicitation of an offer to buy any securities and shall not constitute an offer to sell or solicitation of an offer to buy, or a sale of, any securities in any jurisdiction in contravention of applicable law. The Notes and the related guarantees have not been and will not be registered under the Securities Act, or the securities laws of any other jurisdiction. The Notes and the related guarantees are being offered and sold only to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act and to certain non-U.S. persons in offshore transactions in reliance on Regulation S under the Securities Act.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Exchange Act, the Company has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

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