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

Return flights

09 Dec - 23 Dec	Icelandair
08 Dec - 12 Dec	Icelandair
06 Dec - 13 Dec	Icelandair
29 Dec - 29 Jan	Lufthansa
29 Dec - 29 Jan	Lufthansa	direct
24 Dec - 17 Jan	Icelandair
12 Dec - 17 Dec	Aer Lingus
12 Dec - 18 Dec	Aer Lingus
24 Dec - 17 Jan	Lufthansa	direct
26 Dec - 17 Jan	Air Canada
06 Dec - 08 Dec	Aer Lingus
28 Dec - 09 Jan	Lufthansa
15 Dec - 23 Dec	Aer Lingus
12 Dec - 17 Dec	Lufthansa	direct
04 Dec - 08 Dec	KLM	direct
09 Dec - 23 Dec	Lufthansa	direct
31 Dec - 07 Jan	Lufthansa	direct
26 Dec - 17 Jan	KLM	direct
23 Dec - 10 Jan	Frontier Airlines
26 Dec - 10 Jan	United	direct

Also check the deals for one-way flights from Washington 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 Washington to Amsterdam in December from $456

Return flights