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

Return flights

17 Dec - 23 Dec	Air China
03 Dec - 08 Dec	Air China
03 Dec - 06 Dec	Air China
12 Dec - 21 Dec	Air China
03 Dec - 09 Dec	Air China
12 Dec - 16 Dec	Air China
08 Dec - 16 Dec	Air China
10 Dec - 04 Jan	Air China
24 Dec - 04 Jan	Air China
24 Dec - 13 Jan	Air China
24 Dec - 01 Jan	Air China
17 Dec - 20 Dec	Air China
29 Dec - 03 Jan	Air China
29 Dec - 01 Jan	Air China
29 Dec - 20 Jan	Air China
26 Dec - 04 Jan	Air China
22 Dec - 22 Jan	Etihad Airways
22 Dec - 15 Jan	Etihad Airways
10 Dec - 16 Dec	Air China
10 Dec - 18 Dec	Air China

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 455€

Return flights