This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $355 fare is the cheapest current round-trip from Philadelphia (PHL) to PHX on Frontier flight F94161, departing 2026-07-16 at 16:38 with return on 2026-07-19.

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