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

Return flights

07 Sep - 23 Oct	Air China
07 Sep - 28 Oct	Air China
07 Sep - 17 Oct	Air China
24 Sep - 15 Oct	Air China
24 Sep - 14 Oct	Air China
23 Sep - 14 Oct	Air China
24 Sep - 13 Oct	Air China
23 Sep - 13 Oct	Air China
22 Sep - 20 Oct	Air China
22 Sep - 12 Oct	Air China
01 Sep - 16 Sep	Air China
06 Sep - 22 Sep	Air China
15 Sep - 22 Sep	Air China
01 Sep - 22 Sep	Air China
10 Sep - 22 Sep	Air China
04 Sep - 18 Sep	Air China
10 Sep - 16 Sep	Air China
02 Sep - 16 Sep	Air China
12 Sep - 16 Sep	Air China
01 Sep - 19 Sep	Etihad Airways

Also check the deals for one-way flights from Munich 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 Munich to Seoul in September from 556€

Return flights