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

Return flights

06 Dec - 08 Dec	Ryanair	direct
06 Dec - 19 Dec	Ryanair	direct
05 Dec - 08 Dec	Ryanair	direct
05 Dec - 19 Dec	Ryanair	direct
19 Dec - 22 Dec	Ryanair	direct
06 Dec - 22 Dec	Ryanair	direct
19 Dec - 20 Dec	Ryanair	direct
06 Dec - 20 Dec	Ryanair	direct
06 Dec - 21 Dec	Ryanair	direct
05 Dec - 22 Dec	Ryanair	direct

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

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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Cheapest return flights from Gerona to Brussels in December from $101

Return flights