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

Return flights

08 Sep - 18 Sep	China Eastern
06 Sep - 14 Sep	Air China
08 Sep - 14 Sep	Air China
08 Sep - 21 Sep	Air China
17 Sep - 01 Oct	Air China
02 Sep - 16 Sep	SWISS
01 Sep - 12 Sep	Air China
12 Sep - 21 Sep	Air China
05 Sep - 21 Sep	Air China
20 Sep - 01 Oct	Air China
11 Sep - 26 Sep	Air China
15 Sep - 26 Sep	Air China
25 Sep - 14 Oct	Air China
27 Sep - 12 Oct	Air China
18 Sep - 09 Oct	Etihad Airways
22 Sep - 13 Oct	Etihad Airways
24 Sep - 09 Oct	Etihad Airways
20 Sep - 10 Oct	Air China
23 Sep - 13 Oct	Air France
27 Sep - 11 Oct	LOT

Also check the deals for one-way flights from Geneva to Seoul 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 Geneva to Seoul in September from 518€

Return flights