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

Return flights

23 Dec - 25 Jan	China Eastern
22 Dec - 24 Jan	China Southern
23 Dec - 31 Dec	China Southern
23 Dec - 04 Jan	China Southern
30 Dec - 06 Jan	Lufthansa
30 Dec - 09 Jan	Lufthansa
25 Dec - 01 Jan	China Southern
30 Dec - 08 Jan	Lufthansa
30 Dec - 05 Jan	Lufthansa
29 Dec - 07 Jan	Lufthansa
30 Dec - 19 Jan	Lufthansa
26 Dec - 31 Dec	China Southern
26 Dec - 28 Dec	China Southern
24 Dec - 27 Dec	Air France
24 Dec - 29 Dec	Air France
22 Dec - 27 Dec	Air France
24 Dec - 28 Dec	Air France
26 Dec - 30 Dec	Air France
27 Dec - 31 Dec	LOT
22 Dec - 25 Dec	China Southern

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 413€

Return flights