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

Return flights

09 Sep - 23 Sep	Etihad Airways
09 Sep - 21 Oct	Austrian Airlines
08 Sep - 23 Sep	LOT
01 Sep - 23 Sep	LOT
15 Sep - 22 Sep	LOT
16 Sep - 22 Sep	Etihad Airways
24 Sep - 15 Oct	Air France
24 Sep - 14 Oct	Air France
24 Sep - 08 Oct	Air France
02 Sep - 14 Oct	KLM
17 Sep - 14 Oct	Air France
16 Sep - 08 Oct	Air France
17 Sep - 09 Oct	Air France
23 Sep - 14 Oct	Air France
11 Sep - 27 Oct	Etihad Airways
07 Sep - 25 Sep	Etihad Airways
11 Sep - 22 Sep	Etihad Airways
06 Sep - 22 Sep	Etihad Airways
16 Sep - 23 Sep	Etihad Airways
02 Sep - 08 Sep	Etihad Airways

Also check the deals for one-way flights from Zurich 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 Zurich to Seoul in September from 513€

Return flights