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

Return flights

02 Dec - 08 Dec	Air France
03 Dec - 10 Dec	Air France
04 Dec - 11 Dec	Air France
06 Dec - 11 Dec	Lufthansa
01 Dec - 07 Dec	Air France
25 Dec - 01 Jan	Lufthansa
25 Dec - 04 Jan	Lufthansa
30 Dec - 20 Jan	Lufthansa
16 Dec - 06 Jan	Lufthansa
04 Dec - 07 Dec	Lufthansa
09 Dec - 16 Dec	Lufthansa
07 Dec - 11 Dec	Air France
25 Dec - 07 Jan	Lufthansa
25 Dec - 31 Dec	Lufthansa
01 Dec - 05 Dec	China Southern
26 Dec - 03 Jan	Lufthansa
18 Dec - 03 Jan	Lufthansa
23 Dec - 06 Jan	Lufthansa
23 Dec - 09 Jan	Lufthansa
27 Dec - 04 Jan	KLM

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 526€

Return flights