This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $49 fare is the cheapest current round-trip from Phoenix (PHX) to DEN on Frontier flight F91376, departing 2026-05-30 at 05:15 with return on 2026-05-30.

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