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

Return flights

06 Dec - 11 Dec	KLM
01 Dec - 09 Dec	Lufthansa
01 Dec - 31 Dec	Lufthansa
02 Dec - 16 Dec	Lufthansa
10 Dec - 17 Dec	LOT
09 Dec - 17 Dec	LOT
05 Dec - 12 Dec	Air France
22 Dec - 16 Jan	Finnair
15 Dec - 25 Dec	Lufthansa
10 Dec - 24 Dec	Finnair
09 Dec - 24 Dec	Finnair
26 Dec - 01 Jan	Lufthansa
24 Dec - 03 Jan	Turkish Airlines
22 Dec - 05 Jan	Turkish Airlines
25 Dec - 03 Jan	Turkish Airlines
30 Dec - 12 Jan	KLM
27 Dec - 02 Jan	Turkish Airlines
22 Dec - 02 Jan	Turkish Airlines
20 Dec - 01 Jan	Turkish Airlines
27 Dec - 03 Jan	Turkish Airlines

Also check the deals for one-way flights from Seoul to Berlin 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 Berlin in December from $656

Return flights