This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $159 fare is the cheapest current round-trip from Denver (DEN) to SFO on Frontier flight F92141, departing 2026-05-14 at 09:03 with return on 2026-05-18.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.