This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $167 fare is the cheapest current round-trip from Detroit (DTW) to LAS on Southwest flight WN4581, departing 2026-06-30 at 06:40 with return on 2026-07-05.

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