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

Return flights

21 Apr - 06 May	Turkish Airlines
30 Apr - 25 May	Turkish Airlines
15 Apr - 06 May	Turkish Airlines
23 Apr - 08 May	Turkish Airlines
28 Apr - 14 May	Turkish Airlines
30 Apr - 16 May	Turkish Airlines
30 Apr - 18 May	Turkish Airlines
09 Apr - 23 Apr	Turkish Airlines
08 Apr - 22 Apr	Turkish Airlines
21 Apr - 05 May	Turkish Airlines
07 Apr - 21 Apr	Finnair
06 Apr - 20 Apr	Finnair
05 Apr - 19 Apr	Finnair
01 Apr - 17 Apr	Finnair
01 Apr - 15 Apr	Eurowings
10 Apr - 17 Apr	Finnair
24 Apr - 01 May	Finnair
01 Apr - 30 Apr	Eurowings
06 Apr - 12 Apr	Finnair
20 Apr - 01 May	Eurowings

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 647€

Return flights