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Frontier vs JetBlue vs Breeze US 2026: 3-Way Ultra Low Cost Airline Comparison After Spirit Airlines Ceased Operations

Aryan Gaekwad
Aryan Gaekwad
Points and Loyalty Editor, ShopBack

The US ultra low cost carrier landscape restructured in 2025-2026. Spirit Airlines filed a second Chapter 11 in August 2025, failed to secure federal bailout, and ceased all operations in 2026 after the JetBlue merger collapsed and no viable buyer emerged. Southwest Airlines lost ULCC status after introducing checked bag fees in May 2025. The 2026 US low-cost lineup is now Frontier Airlines (Denver-based, aggressive ancillary fees but deepest base fares), JetBlue Airways (repositioned as a hybrid low-fare with Mint premium and TrueBlue loyalty), and Breeze Airways (David Neeleman's newer entrant, secondary-market routes, Nice + Nicer + Nicest fare classes). This guide runs full-cost math including baggage, seat selection, and taxes across 3 sample routes, plus how ShopBack cashback on hotel and car rental stacking recoups spend.

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Frontier vs JetBlue vs Breeze US 2026: 3-Way Ultra Low Cost Airline Comparison After Spirit Airlines Ceased Operations | ShopBack Blog