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): April 29, 2022

Sun Country Airlines Holdings, Inc.

(Exact name of Registrant as specified in its charter)

(651) 681-3900

(Registrant’s telephone number, including area code)

(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:

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

Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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. ☐

On April 29, 2022, the Board of Directors (the “Board”) of Sun Country Airlines Holdings, Inc. (the “Company”) appointed Patrick O’Keeffe as an independent director, effective as of April 29, 2022. Mr. O’Keeffe will serve as a Class II director whose initial term will expire upon the Company’s 2023 annual meeting of stockholders. Mr. O’Keeffe has not been appointed as a member of any committee of the Board at this time; however, the Company expects to appoint him to one or more committees of the Board in the future.

Mr. O’Keeffe will receive the annual cash and equity compensation received by each of the Company’s independent directors, which includes an annual cash payment of $50,000 paid quarterly, in arrears, beginning from his date of appointment, and an annual equity grant following each annual meeting of the Company’s stockholders having a grant value of $120,000. Mr. O’Keeffe will also receive a grant of restricted stock units upon appointment having a grant value of $120,000. All non-employee directors are also reimbursed for their reasonable out-of-pocket expenses incurred in attending Board and committee meetings.

The Company expects Mr. O’Keeffe to enter into the standard director and executive officer indemnification agreement that it has with its directors and executive officers. A copy of the Company’s form of indemnification agreement was filed as Exhibit 10.39 to the Company’s Registration Statement on Form S-1 (File No. 333-252858).

There are no arrangements or understandings between Mr. O’Keeffe and any other persons pursuant to which Mr. O’Keeffe was selected as a director. There are no transactions, arrangements or relationships between the Company, on the one hand, and Mr. O’Keeffe, on the other hand, which would require disclosure pursuant to Item 404(a) of Regulation S-K.

A copy of the Company’s press release announcing the appointment of Mr. O’Keeffe is filed as Exhibit 99.1 attached hereto and is incorporated by reference herein.

(d) Exhibits.

SIGNATURES

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