This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $297 fare is the cheapest current round-trip from Seattle (SEA) to BOS on American Airlines flight AA381, departing 2026-08-26 at 05:10 with return on 2026-09-02.

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