This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $154 fare is the cheapest current round-trip from Denver (DEN) to WAS on Southwest flight WN1547, departing 2026-09-03 at 11:05 with return on 2026-09-06.

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