This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $243 fare is the cheapest current round-trip from Denver (DEN) to BOS on Southwest flight WN1494, departing 2026-06-05 at 19:05 with return on 2026-06-07.

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