This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $582 fare is the cheapest current round-trip from Detroit (DTW) to SEA on Alaska Airlines flight AS313, departing 2026-07-24 at 17:31 with return on 2026-07-27.

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