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

Return flights

30 Dec - 07 Jan	Japan Airlines
20 Dec - 30 Dec	Japan Airlines
31 Dec - 08 Jan	Japan Airlines
24 Dec - 30 Dec	Japan Airlines
02 Dec - 07 Dec	Japan Airlines
02 Dec - 09 Dec	Japan Airlines
05 Dec - 18 Dec	Japan Airlines
25 Dec - 28 Dec	Japan Airlines
28 Dec - 04 Jan	Japan Airlines
15 Dec - 25 Dec	Japan Airlines
22 Dec - 25 Dec	Japan Airlines
22 Dec - 29 Dec	Japan Airlines
20 Dec - 03 Jan	Japan Airlines
23 Dec - 29 Dec	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 1388€

Return flights