This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $376 fare is the cheapest current round-trip from Washington DC (DCA) to SFO on Alaska Airlines flight AS15, departing 2026-08-11 at 08:59 with return on 2026-08-14.

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