This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $149 fare is the cheapest current round-trip from Austin (AUS) to SEA on Alaska Airlines flight AS339, departing 2026-08-21 at 19:07 with return on 2026-08-24.

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