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

Return flights

01 Dec - 08 Dec	Air China
03 Dec - 11 Dec	Lufthansa
08 Dec - 11 Dec	Lufthansa
08 Dec - 12 Dec	Lufthansa
05 Dec - 09 Dec	Lufthansa
05 Dec - 11 Dec	Lufthansa
06 Dec - 12 Dec	Lufthansa
07 Dec - 12 Dec	Lufthansa
05 Dec - 08 Dec	Air France
02 Dec - 10 Dec	Air France
07 Dec - 16 Jan	Lufthansa
17 Dec - 07 Jan	Lufthansa
15 Dec - 07 Jan	Lufthansa
25 Dec - 06 Jan	Lufthansa
25 Dec - 04 Jan	Lufthansa
25 Dec - 08 Jan	Lufthansa
24 Dec - 13 Jan	LOT
25 Dec - 01 Jan	Lufthansa
28 Dec - 06 Jan	Lufthansa
22 Dec - 12 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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen

Cheapest return flights from Seoul to Copenhagen in December from 541€

Return flights