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

Return flights

17 Sep - 22 Sep	Emirates
15 Sep - 23 Sep	Emirates
15 Sep - 22 Sep	Emirates
17 Sep - 23 Sep	Emirates
15 Sep - 18 Sep	Emirates
09 Sep - 23 Sep	Etihad Airways
09 Sep - 16 Sep	Etihad Airways
09 Sep - 15 Sep	Etihad Airways
09 Sep - 18 Sep	Etihad Airways
09 Sep - 11 Sep	Etihad Airways
24 Sep - 02 Oct	Etihad Airways
23 Sep - 27 Oct	Emirates
23 Sep - 21 Oct	Emirates
23 Sep - 02 Oct	Etihad Airways
17 Sep - 02 Oct	Scandinavian Airlines
19 Sep - 02 Oct	Etihad Airways
15 Sep - 16 Oct	Emirates
24 Sep - 01 Oct	Emirates
20 Sep - 04 Oct	LOT
10 Sep - 02 Oct	Air France

Also check the deals for one-way flights from Seoul to Zurich 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 Zurich in September from 555€

Return flights