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

Return flights

17 Sep - 30 Sep	Scandinavian Airlines
22 Sep - 23 Oct	Scandinavian Airlines
22 Sep - 02 Oct	Emirates
15 Sep - 02 Oct	Emirates
22 Sep - 25 Sep	Emirates
15 Sep - 25 Sep	Emirates
17 Sep - 25 Sep	Emirates
10 Sep - 17 Sep	China Eastern
21 Sep - 28 Sep	Thai Airways
22 Sep - 01 Oct	Emirates
10 Sep - 22 Sep	Emirates
17 Sep - 24 Sep	Emirates
22 Sep - 29 Sep	Emirates
23 Sep - 30 Sep	Emirates
17 Sep - 05 Oct	Emirates
24 Sep - 05 Oct	Emirates
23 Sep - 19 Oct	Emirates
15 Sep - 03 Oct	Scandinavian Airlines
21 Sep - 19 Oct	T'way Air
17 Sep - 05 Oct	LOT	direct

Also check the deals for one-way flights from Seoul to Warsaw 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 Warsaw in September from $706

Return flights