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

Return flights

16 Sep - 24 Sep	Air China
18 Sep - 24 Sep	Air China
04 Sep - 17 Sep	China Eastern
05 Sep - 13 Sep	Air China
05 Sep - 12 Sep	Air China
09 Sep - 12 Sep	Air China
02 Sep - 10 Sep	Air China
04 Sep - 18 Sep	Air China
03 Sep - 17 Sep	Air China
16 Sep - 27 Sep	Air China
25 Sep - 02 Oct	Air China
23 Sep - 03 Oct	Etihad Airways
26 Sep - 05 Oct	Etihad Airways
26 Sep - 06 Oct	Air China
30 Sep - 07 Oct	Etihad Airways
25 Sep - 07 Oct	Etihad Airways
29 Sep - 03 Oct	Emirates
29 Sep - 13 Oct	Etihad Airways
27 Sep - 07 Oct	Etihad Airways
28 Sep - 13 Oct	Etihad Airways

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 471€

Return flights