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

Return flights

31 Dec - 21 Jan	Scandinavian Airlines
09 Dec - 26 Dec	Scandinavian Airlines
02 Dec - 10 Dec	Scandinavian Airlines
01 Dec - 15 Dec	Lufthansa
31 Dec - 25 Jan	Lufthansa
25 Dec - 31 Jan	Lufthansa
25 Dec - 18 Jan	Lufthansa
25 Dec - 14 Jan	Lufthansa
02 Dec - 16 Dec	Lufthansa
10 Dec - 27 Dec	China Southern
05 Dec - 23 Dec	China Southern
01 Dec - 18 Dec	Lufthansa
07 Dec - 21 Dec	Lufthansa
31 Dec - 24 Jan	Lufthansa
03 Dec - 11 Dec	China Southern
05 Dec - 14 Dec	China Southern
05 Dec - 09 Jan	China Southern
05 Dec - 10 Jan	China Southern
09 Dec - 10 Jan	China Southern
11 Dec - 18 Jan	Lufthansa

Also check the deals for one-way flights from Amsterdam to Seoul 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 Amsterdam to Seoul in December from 449€

Return flights