This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $318 fare is the cheapest current round-trip from Portland (PDX) to WAS on Alaska Airlines flight AS531, departing 2026-08-11 at 17:50 with return on 2026-08-21.

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