The cheapest flight to Brussels you can get by boooking 10 days before departure.
The most popular airlines on the route Dublin - Brussels: Ryanair (FR), Aer Lingus (EI).
The cheapest flights you can book on the route Dublin Airport (DUB) - Charleroi (CRL).
Direct flights last about 1h 40min.
Direct flights available 7 days a week.
Direct flights: Ryanair (FR), Aer Lingus (EI).