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

Return flights

25 Sep - 02 Oct	Air China
24 Sep - 29 Sep	Air China
23 Sep - 02 Oct	Air China
22 Sep - 25 Sep	Jin Air
22 Sep - 26 Sep	Jin Air
22 Sep - 03 Oct	Jin Air
23 Sep - 13 Oct	China Southern
25 Sep - 13 Oct	Air China
23 Sep - 28 Sep	China Southern
22 Sep - 28 Sep	Jin Air
22 Sep - 05 Oct	Jin Air
24 Sep - 28 Sep	Air China
24 Sep - 02 Oct	Air China
24 Sep - 25 Sep	Air China
26 Sep - 02 Oct	Shanghai Airlines
25 Sep - 29 Sep	Air China
30 Sep - 13 Oct	T'way Air
30 Sep - 09 Oct	Eastar Jet
26 Sep - 29 Sep	Air China

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 604€

Return flights