This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $321 fare is the cheapest current round-trip from Portland (PDX) to AUS on Alaska Airlines flight AS1370, departing 2026-05-23 at 17:30 with return on 2026-05-24.

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