AirHint found the following cheapest return flights from Duesseldorf (DUS) to Seoul (ICN) in April 2026 (see full year).

Return flights

23 Apr - 08 May	KLM
30 Apr - 12 May	KLM
07 Apr - 16 Apr	Finnair
25 Apr - 06 May	KLM
09 Apr - 30 Apr	Etihad Airways
10 Apr - 24 Apr	Etihad Airways
06 Apr - 27 Apr	Etihad Airways
30 Apr - 18 May	Etihad Airways
29 Apr - 18 May	Etihad Airways
29 Apr - 17 May	Etihad Airways
01 Apr - 16 Apr	Finnair
20 Apr - 03 May	Etihad Airways
14 Apr - 28 Apr	Turkish Airlines
11 Apr - 25 Apr	Turkish Airlines
24 Apr - 02 May	Turkish Airlines
01 Apr - 19 Apr	Finnair
02 Apr - 16 Apr	Air France

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

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 April from $769

Return flights