This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $657 fare is the cheapest current round-trip from Barcelona (BCN) to MOW on W4 flight W43176, departing 2026-06-18 at 09:05 with return on 2026-06-29.

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