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

Return flights

04 Dec - 10 Dec	Air China
04 Dec - 12 Dec	Air China
03 Dec - 11 Dec	Air France
03 Dec - 09 Dec	Air France
11 Dec - 18 Dec	Air China
06 Dec - 13 Dec	Air France
16 Dec - 29 Dec	Air France
04 Dec - 19 Dec	Air China
03 Dec - 18 Dec	Lufthansa
01 Dec - 10 Dec	Scandinavian Airlines
04 Dec - 01 Jan	Finnair
12 Dec - 23 Jan	Finnair
23 Dec - 20 Jan	Lufthansa
21 Dec - 11 Jan	Finnair
21 Dec - 07 Jan	Finnair
27 Dec - 04 Jan	KLM
28 Dec - 02 Jan	Finnair
16 Dec - 02 Jan	Finnair
15 Dec - 03 Jan	Austrian Airlines
28 Dec - 05 Jan	Finnair

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Seoul in December from $601

Return flights