The cheapest flight to Santander you can get by boooking 29 days before departure.
The most popular airlines on the route Brussels - Santander: Ryanair (FR), Iberia (IB).
The cheapest flights you can book on the route Charleroi (CRL) - Parayas (SDR).
Direct flights last about 1h 55min.
Direct flights available on: Monday.
Direct flights: Ryanair (FR).