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

Return flights

01 Dec - 11 Dec	Air France
01 Dec - 10 Dec	Air France
10 Dec - 08 Jan	Air France
01 Dec - 06 Jan	Air France
03 Dec - 08 Dec	Air France
02 Dec - 09 Dec	Air France
06 Dec - 11 Dec	Air China
12 Dec - 21 Dec	Air China
15 Dec - 23 Dec	Air China
10 Dec - 30 Dec	Lufthansa
15 Dec - 08 Jan	Lufthansa
29 Dec - 08 Jan	Lufthansa
12 Dec - 15 Dec	Lufthansa
22 Dec - 30 Dec	Lufthansa
26 Dec - 02 Jan	Lufthansa
15 Dec - 08 Jan	Scandinavian Airlines	direct
10 Dec - 08 Jan	Scandinavian Airlines	direct
29 Dec - 08 Jan	Scandinavian Airlines	direct
24 Dec - 01 Jan	Etihad Airways
22 Dec - 21 Jan	Etihad Airways

Also check the deals for one-way flights from Seoul to Copenhagen 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 Seoul to Copenhagen in December from 540€

Return flights