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

Return flights

19 Dec - 27 Dec	Air China
07 Dec - 13 Dec	Air China
18 Dec - 29 Dec	Air China
03 Dec - 08 Dec	Air China
19 Dec - 02 Jan	Air China
19 Dec - 03 Jan	Air China
10 Dec - 05 Jan	Air China
10 Dec - 08 Jan	Air China
12 Dec - 05 Jan	Air China
18 Dec - 22 Dec	Air China
11 Dec - 05 Jan	Air China
08 Dec - 11 Dec	Scandinavian Airlines
21 Dec - 29 Dec	China Eastern
11 Dec - 18 Dec	Air China
03 Dec - 10 Dec	Lufthansa
01 Dec - 06 Dec	Air France
16 Dec - 15 Jan	Air France
28 Dec - 01 Jan	KLM
29 Dec - 07 Jan	Lufthansa
19 Dec - 01 Jan	Scandinavian Airlines

Also check the deals for one-way flights from Seoul 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 Seoul to Geneva in December from 438€

Return flights