This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $393 fare is the cheapest current round-trip from Atlanta (ATL) to SEA on Frontier flight F93599, departing 2026-07-24 at 20:53 with return on 2026-07-28.

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