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

Return flights

15 Sep - 19 Sep	Air China
15 Sep - 23 Sep	Air China
15 Sep - 21 Sep	China Eastern
16 Sep - 23 Sep	SWISS
09 Sep - 16 Sep	China Eastern
23 Sep - 08 Oct	easyJet
18 Sep - 10 Oct	Etihad Airways
29 Sep - 22 Oct	easyJet
19 Sep - 10 Oct	China Eastern
25 Sep - 07 Oct	Etihad Airways
23 Sep - 27 Sep	easyJet
25 Sep - 10 Oct	Air China
12 Sep - 15 Sep	China Eastern
22 Sep - 28 Sep	easyJet
12 Sep - 21 Sep	China Eastern
13 Sep - 24 Sep	easyJet
23 Sep - 02 Oct	easyJet
20 Sep - 05 Oct	easyJet
27 Sep - 05 Oct	LOT
24 Sep - 05 Oct	easyJet

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 $541

Return flights