Cheapest return flights from San Sebastian to Brussels in December from 173€

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

Return flights

20 Dec - 05 Jan Iberia
11 Dec - 14 Dec Iberia
12 Dec - 15 Dec Iberia
11 Dec - 11 Dec Iberia
16 Dec - 19 Dec Iberia
08 Dec - 10 Dec Iberia
06 Dec - 08 Dec Vueling Airlines
16 Dec - 20 Dec Volotea
26 Dec - 30 Dec Iberia
08 Dec - 12 Dec Iberia
22 Dec - 25 Dec Iberia
30 Dec - 04 Jan Iberia

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

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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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