This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $252 fare is the cheapest current round-trip from Seattle (SEA) to HOU on Southwest flight WN3542, departing 2026-09-03 at 05:30 with return on 2026-09-07.

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