This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $185 fare is the cheapest current round-trip from San Francisco (SFO) to SEA on Alaska Airlines flight AS620, departing 2026-07-15 at 06:03 with return on 2026-08-05.

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