This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $633 fare is the cheapest current round-trip from Boston (BOS) to LAS on Southwest flight WN754, departing 2026-07-24 at 18:50 with return on 2026-07-26.

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