X0407 4 2023-05-25 false 0001670076 Frontier Group Holdings, Inc. ULCC 0000929613 FRANKE WILLIAM A C/O FRONTIER GROUP HOLDINGS, INC. 4545 AIRPORT WAY DENVER CO 80239 true false true true Chairman of the Board false Common Stock 2023-05-25 4 M false 14574.00 A 21666.00 D Common Stock 178834034.00 I See Footnote Restricted Stock Units 2023-05-25 4 M false 14574.00 0.00 D Common Stock 14574.00 0.00 D Restricted Stock Units 2023-05-25 4 A false 17722.00 0.00 A Common Stock 17722.00 17722.00 D Relates solely to the settlement of previously granted Restricted Stock Units upon vesting. No shares were sold by the Reporting Person. Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date. These shares are held directly by Indigo Frontier Holdings Company, LLC. The reporting person is the sole member of Indigo Denver Management Company, LLC, which is the managing member of Indigo Frontier Holdings Company, LLC, and as such, the reporting person has voting and dispositive power over these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. The Restricted Stock Units have fully vested as of May 25, 2023. The Restricted Stock Units will vest in full on May 25, 2024, subject to continued service of the Reporting Person through the vesting date. /s/ Howard Diamond, as Attorney-in-fact for William A. Franke 2023-05-30