AirHint found the following cheapest return flights from Warsaw (WAW) to Seoul (ICN) in September 2026 (see full year).

Return flights

10 Sep - 08 Oct	Lufthansa
11 Sep - 13 Oct	Lufthansa
03 Sep - 14 Sep	Lufthansa
20 Sep - 07 Oct	Lufthansa
01 Sep - 30 Sep	Finnair
02 Sep - 15 Sep	Lufthansa
10 Sep - 10 Oct	Lufthansa
08 Sep - 15 Sep	Lufthansa
09 Sep - 17 Sep	Lufthansa
02 Sep - 17 Sep	Lufthansa
01 Sep - 08 Sep	Finnair
01 Sep - 15 Sep	Lufthansa
01 Sep - 01 Oct	Finnair
01 Sep - 17 Sep	Lufthansa
12 Sep - 14 Oct	Lufthansa
01 Sep - 11 Sep	Finnair
09 Sep - 02 Oct	Finnair
17 Sep - 01 Oct	Finnair
16 Sep - 03 Oct	KLM
10 Sep - 03 Oct	Turkish Airlines

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 589€

Return flights