This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $652 fare is the cheapest current round-trip from Seattle (SEA) to CPH on FI flight FI682, departing 2026-06-03 at 19:00 with return on 2026-06-23.

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