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

Return flights

01 Dec - 09 Dec	Lufthansa
17 Dec - 08 Jan	Lufthansa
17 Dec - 09 Jan	Lufthansa
17 Dec - 10 Jan	Lufthansa
04 Dec - 14 Dec	Air France
03 Dec - 09 Dec	Air France
04 Dec - 10 Dec	Air France
02 Dec - 10 Dec	Air France
02 Dec - 09 Dec	Air France
03 Dec - 14 Dec	Air France
01 Dec - 08 Dec	Lufthansa
18 Dec - 09 Jan	Lufthansa
01 Dec - 14 Dec	Lufthansa
25 Dec - 01 Jan	Lufthansa
25 Dec - 08 Jan	Lufthansa
16 Dec - 10 Jan	Lufthansa
25 Dec - 09 Jan	Lufthansa
18 Dec - 29 Dec	Lufthansa
12 Dec - 02 Jan	Lufthansa
25 Dec - 03 Jan	Lufthansa

Also check the deals for one-way flights from Seoul to Amsterdam 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 Amsterdam in December from $609

Return flights