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

Return flights

03 Sep - 16 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
29 Sep - 15 Oct	Hainan Airlines
15 Sep - 21 Sep	Ryanair
01 Sep - 10 Sep	Eurowings
02 Sep - 09 Sep	Finnair
02 Sep - 08 Sep	Finnair
21 Sep - 12 Oct	Finnair
09 Sep - 18 Sep	Finnair
01 Sep - 11 Sep	Finnair
03 Sep - 10 Sep	Finnair
09 Sep - 09 Oct	Finnair
01 Sep - 07 Sep	easyJet
25 Sep - 19 Oct	Lufthansa
30 Sep - 09 Oct	Finnair
25 Sep - 16 Oct	Lufthansa
02 Sep - 13 Oct	easyJet
28 Sep - 20 Oct	Finnair
12 Sep - 09 Oct	Finnair
23 Sep - 18 Oct	Lufthansa

Also check the deals for one-way flights from Berlin 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 Berlin to Seoul in September from $753

Return flights