This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $450 fare is the cheapest current round-trip from Seattle (SEA) to FLL on Frontier flight F93406, departing 2026-08-20 at 14:37 with return on 2026-08-26.

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