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

Return flights

24 Jul - 13 Aug	Air France
19 Jul - 24 Jul	Iberia
16 Jul - 25 Aug	Pegasus Airlines
21 Jul - 04 Aug	Turkish Airlines
21 Jul - 11 Aug	Turkish Airlines
24 Jul - 11 Aug	Turkish Airlines
22 Jul - 11 Aug	Turkish Airlines
28 Jul - 25 Aug	Finnair
28 Jul - 03 Aug	Eurowings
30 Jul - 03 Aug	Air France
26 Jul - 30 Jul	LOT
16 Jul - 20 Jul	Pegasus Airlines
27 Jul - 20 Aug	Turkish Airlines
20 Jul - 27 Jul	LOT
30 Jul - 31 Jul	Air France
19 Jul - 26 Jul	Air France

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

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 July from $1024

Return flights