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

Return flights

04 Dec - 15 Dec	Lufthansa
02 Dec - 14 Dec	Lufthansa
09 Dec - 16 Dec	Etihad Airways
06 Dec - 16 Dec	LOT
11 Dec - 18 Dec	Etihad Airways
02 Dec - 23 Dec	Etihad Airways
05 Dec - 15 Dec	China Southern
05 Dec - 16 Dec	China Southern
06 Dec - 14 Dec	China Southern
02 Dec - 12 Dec	Etihad Airways
30 Dec - 11 Jan	Finnair
02 Dec - 01 Jan	Lufthansa
16 Dec - 01 Jan	Lufthansa
10 Dec - 08 Jan	Lufthansa
23 Dec - 08 Jan	Finnair
13 Dec - 01 Jan	Finnair
23 Dec - 02 Jan	Finnair
18 Dec - 08 Jan	Finnair
28 Dec - 04 Jan	Finnair
27 Dec - 04 Jan	Finnair

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 486€

Return flights