We spotted nonstop flights from Madrid (MAD) to London on United for just €57 EUR round-trip.
If London has been on your list, this is one of the better deals we've seen on this route.
Deal details
- Route: Madrid (MAD) → London
- Price: €57 EUR round-trip
- Airline: United
- Stops: Nonstop
Prices are accurate as of March 18, 2026. Fares can change quickly — book soon if this looks good.
