This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $637 fare is the cheapest current round-trip from Reykjavik (KEF) to CHI on FI flight FI855, departing 2026-08-29 at 19:45 with return on 2026-09-02.

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