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

Return flights

17 Sep - 22 Sep	Air China
11 Sep - 24 Sep	Air China
23 Sep - 24 Sep	Air China
11 Sep - 15 Sep	Air China
18 Sep - 22 Sep	Air China
19 Sep - 25 Sep	Air China
17 Sep - 24 Sep	Air China
10 Sep - 20 Sep	Air China
21 Sep - 25 Sep	Air China
19 Sep - 24 Sep	Air China
29 Sep - 03 Oct	Scandinavian Airlines
27 Sep - 02 Oct	Scandinavian Airlines
30 Sep - 13 Oct	Jeju Air
25 Sep - 08 Oct	Air China
28 Sep - 03 Oct	Air France
30 Sep - 07 Oct	Air France
27 Sep - 07 Oct	Air France
23 Sep - 13 Oct	Air China
30 Sep - 14 Oct	Air France
29 Sep - 14 Oct	KLM

Also check the deals for one-way flights from Seoul to Geneva in September.

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 September from 473€

Return flights