Frontier Airlines - April 21, 2026

These $24 fares are pretty down to Earth 🌎

Earth Day fares = your sign to book ...

Earth Day fares = your sign to book

4545 Airport Way, Denver, CO 80239
04/21/26 10:52 AM

Earth‑friendly energy, Discount Den ‑friendly savings.

Discount Den fares start at

ONE-WAY

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Public fares start at

ONE-WAY

Book now

*Buy by 4/23/26. Fly by 9/2/26 select days of week. 7-day advance purchase is required. Blackout travel dates apply. Seats are limited. Full terms and conditions below.

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*Terms and Conditions: Fare Sale

Tickets must be purchased by 11:59 pm Eastern time on Apr. 23, 2026. Sale fares are valid for nonstop and connect travel on select days of week; through Sep. 2, 2026. The following blackout travel dates apply: Jun. 11 – Aug. 10, 2026. 7-day advance purchase is required. Not all markets are available for all dates of travel. Round trip purchase is not required. All travel rules will apply, including Frontier Airlines' Contract of Carriage.

Other Terms and Conditions

Discount Den fares are only available at FlyFrontier.com to Discount Den members. Join Discount Den here! Fare(s) shown includes all transportation fees, surcharges and taxes, and are subject to change without notice. Seats are limited at these fares and certain flights and/or days of travel may be unavailable.

All tickets are nonrefundable, except if you cancel within 24 hours of booking for flights 7 days or more prior to departure, and except when otherwise required by the Department of Transportation.

For Basic Fares, changes or cancellations made to itineraries after the 24 hours will be subject to change fees, and any fare differential. Learn more about our change policy. Previously purchased tickets may not be exchanged for special fare tickets. Flight segments must be cancelled prior to scheduled departure time, or the tickets and all amounts paid will be forfeited.

Additional travel services, such as baggage and advance seat assignments are available for purchase separately at an additional charge.

In addition to these Terms and Conditions, please refer to Frontier Airlines' Contract of Carriage.