This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $856 fare is the cheapest current round-trip from Portland (PDX) to BCN on FI flight FI664, departing 2026-08-20 at 15:30 with return on 2026-08-25.

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