This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $137 fare is the cheapest current round-trip from Stockholm (ARN) to MAD on Ryanair flight FR9166, departing 2026-09-07 at 14:40 with return on 2026-09-16.

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