This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $497 fare is the cheapest current round-trip from Seattle (SEA) to SJC on Alaska Airlines flight AS319, departing 2026-08-04 at 15:42 with return on 2026-08-12.

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