AirHint found the following cheapest return flights from Duesseldorf (DUS) to Seoul (ICN) in October 2025 (see full year).

Return flights

21 Oct - 28 Oct	LOT
28 Oct - 12 Nov	LOT
21 Oct - 29 Oct	LOT
27 Oct - 09 Nov	Finnair
01 Oct - 08 Oct	LOT
31 Oct - 09 Nov	Finnair
03 Oct - 13 Oct	Etihad Airways
26 Oct - 18 Nov	Etihad Airways
02 Oct - 09 Oct	Finnair
04 Oct - 11 Oct	LOT
04 Oct - 21 Oct	LOT
04 Oct - 05 Nov	LOT
20 Oct - 27 Oct	Finnair
04 Oct - 17 Oct	KLM
14 Oct - 25 Oct	LOT
25 Oct - 02 Nov	LOT
19 Oct - 02 Nov	Etihad Airways
10 Oct - 01 Nov	LOT
12 Oct - 03 Nov	Eurowings

Also check the deals for one-way flights from Duesseldorf to Seoul in October.

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 Duesseldorf to Seoul in October from $770

Return flights