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

Return flights

08 Sep - 18 Sep	Wizz Air
18 Sep - 13 Oct	Lufthansa
18 Sep - 11 Oct	Lufthansa
06 Sep - 14 Sep	Air China
24 Sep - 24 Oct	Air China
02 Sep - 18 Sep	Finnair
03 Sep - 18 Sep	Finnair
11 Sep - 18 Sep	Finnair
09 Sep - 16 Sep	Finnair
02 Sep - 16 Sep	Finnair
07 Sep - 21 Sep	Finnair
02 Sep - 09 Sep	Finnair
28 Sep - 15 Oct	Finnair
28 Sep - 13 Oct	Finnair
04 Sep - 18 Sep	Finnair
29 Sep - 17 Oct	Lufthansa
29 Sep - 13 Oct	Lufthansa
29 Sep - 15 Oct	Finnair
30 Sep - 21 Oct	Finnair
29 Sep - 09 Oct	Finnair

Also check the deals for one-way flights from Warsaw 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 Warsaw to Seoul in September from $667

Return flights