This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $365 fare is the cheapest current round-trip from Boston (BOS) to SAC on Southwest flight WN4917, departing 2026-08-03 at 12:55 with return on 2026-08-10.

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