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

Return flights

01 Dec - 07 Dec	Iberia
06 Dec - 09 Dec	Iberia
11 Dec - 14 Dec	Iberia
21 Dec - 10 Jan	Vueling Airlines
16 Dec - 23 Dec	Iberia
15 Dec - 22 Dec	Iberia
21 Dec - 04 Jan	Vueling Airlines
10 Dec - 10 Dec	Iberia
28 Dec - 10 Jan	Vueling Airlines
28 Dec - 12 Jan	Vueling Airlines
21 Dec - 25 Dec	Vueling Airlines
21 Dec - 23 Dec	Vueling Airlines
28 Dec - 04 Jan	Vueling Airlines
21 Dec - 22 Dec	Vueling Airlines
21 Dec - 24 Dec	Vueling Airlines

Also check the deals for one-way flights from San Sebastian to Geneva 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 San Sebastian to Geneva in December from 160€

Return flights