Allegiant Travel CO

As of June 30, 2026, under the supervision and with the participation of our management, including our chief executive officer ("CEO") and chief financial officer (“CFO”), we evaluated the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended, or the “Exchange Act”) as of the end of the period covered by this report. Based on that evaluation, management, including our CEO and CFO, has concluded that our disclosure controls and procedures are designed, and are effective, to give reasonable assurance that the information we are required to disclose is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and is accumulated and communicated to our management, including the CEO and the CFO, as appropriate to allow timely decisions regarding required disclosure.

Except as set forth below, there were no changes in our internal control over financial reporting that occurred during the quarter ending June 30, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

On May 13, 2026, the Company acquired Sun Country Airlines Holdings, Inc. (see Note 2 to the consolidated financial statements). As permitted by Securities and Exchange Commission Staff interpretive guidance for newly acquired businesses, management intends to exclude Sun Country from its annual evaluation of internal control over financial reporting as of December 31, 2026. We are implementing internal controls over significant processes specific to the acquisition that we believe are appropriate in consideration of related integration of operations, systems, control activities, and accounting for the merger and merger-related transactions. As of the date of this report, we are in the process of further integrating the acquired Sun Country operations into our overall internal controls over financial reporting.

PART II. OTHER INFORMATION