Frontier (ULCC) - 2023 Q1 - Quarterly Report

Washington, D.C. 20549 FORM 10-Q (Mark One) UNITED STATES SECURITIES AND EXCHANGE COMMISSION ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __ to __ Commission File Number: 001-40304 Frontier Group Holdings, Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction o ...