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

Return flights

04 Dec - 12 Dec	Eurowings
04 Dec - 11 Dec	Eurowings
01 Dec - 14 Dec	easyJet
01 Dec - 12 Dec	easyJet
05 Dec - 11 Dec	Eurowings
04 Dec - 14 Dec	Eurowings
05 Dec - 18 Dec	easyJet
02 Dec - 17 Dec	Ryanair
03 Dec - 17 Dec	Ryanair
02 Dec - 12 Dec	Ryanair
10 Dec - 21 Jan	Air France
09 Dec - 20 Jan	Air France
30 Dec - 14 Jan	SunExpress
09 Dec - 12 Jan	Ryanair
27 Dec - 14 Jan	LOT
29 Dec - 25 Jan	Pegasus Airlines
31 Dec - 31 Jan	KLM
16 Dec - 13 Jan	SunExpress
16 Dec - 30 Jan	SunExpress
16 Dec - 11 Jan	SunExpress

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

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 December from $581

Return flights