This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $140 fare is the cheapest current round-trip from Portland (PDX) to PHX on Frontier flight F94500, departing 2026-06-27 at 17:42 with return on 2026-06-29.

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