Cheapest return flights from Brussels to Dublin in December from $119

Best time to book flights for Brussels (BRU) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Brussels (BRU) to Dublin (DUB) in December 2025 (see full year).

Return flights

03 Dec - 13 Dec Ryanair direct
03 Dec - 05 Dec Ryanair direct
03 Dec - 06 Dec Ryanair direct
03 Dec - 23 Dec Ryanair direct
08 Dec - 13 Dec Ryanair direct
07 Dec - 13 Dec Ryanair direct
08 Dec - 29 Dec Ryanair direct
24 Dec - 29 Dec Ryanair direct
24 Dec - 04 Jan Ryanair direct
24 Dec - 07 Jan Ryanair direct
08 Dec - 23 Dec Ryanair direct
07 Dec - 23 Dec Ryanair direct

Also check the deals for one-way flights from Brussels to Dublin in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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