This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $55 fare is the cheapest current round-trip from Barcelona (BCN) to MIL on MW flight MW7539, departing 2026-09-03 at 08:10 with return on 2026-09-04.

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