This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $210 fare is the cheapest current round-trip from Phoenix (PHX) to SEA on Frontier flight F93303, departing 2026-07-22 at 11:35 with return on 2026-08-12.

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