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

Return flights

20 Dec - 27 Dec	China Eastern
25 Dec - 28 Dec	Japan Airlines
03 Dec - 14 Dec	Japan Airlines
30 Dec - 06 Jan	Japan Airlines
26 Dec - 28 Jan	Japan Airlines
29 Dec - 02 Jan	Japan Airlines
28 Dec - 02 Jan	Japan Airlines
26 Dec - 02 Jan	Japan Airlines

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 $888

Return flights