This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $57 fare is the cheapest current round-trip from Madrid (MAD) to MIL on W4 flight W46314, departing 2026-07-01 at 22:20 with return on 2026-07-02.

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