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

Return flights

01 Dec - 15 Dec	easyJet
01 Dec - 17 Dec	easyJet
01 Dec - 14 Dec	easyJet
04 Dec - 14 Dec	easyJet
04 Dec - 15 Dec	easyJet
04 Dec - 17 Dec	easyJet
04 Dec - 20 Jan	easyJet
07 Dec - 14 Dec	easyJet
05 Dec - 16 Dec	easyJet
02 Dec - 09 Dec	easyJet
08 Dec - 20 Jan	KLM
01 Dec - 08 Dec	Ryanair
12 Dec - 18 Jan	easyJet
09 Dec - 14 Jan	easyJet
11 Dec - 07 Jan	easyJet
11 Dec - 11 Jan	easyJet
12 Dec - 10 Jan	Ryanair
29 Dec - 12 Jan	LOT
26 Dec - 11 Jan	Ryanair
26 Dec - 06 Jan	Ryanair

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 491€

Return flights