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

Return flights

11 Dec - 14 Dec	Icelandair
12 Dec - 14 Dec	Icelandair
06 Dec - 13 Dec	Icelandair
07 Dec - 15 Dec	Icelandair
27 Dec - 17 Jan	Lufthansa
01 Dec - 10 Dec	Lufthansa
11 Dec - 14 Dec	United	direct
04 Dec - 07 Dec	United	direct
01 Dec - 10 Dec	United	direct
06 Dec - 13 Dec	United	direct
07 Dec - 15 Dec	United	direct
31 Dec - 24 Jan	United	direct
29 Dec - 24 Jan	United	direct
23 Dec - 17 Jan	Air Canada
15 Dec - 17 Jan	TAP
15 Dec - 10 Jan	Aer Lingus
14 Dec - 10 Jan	Aer Lingus
15 Dec - 17 Jan	United	direct
15 Dec - 10 Jan	United	direct
14 Dec - 10 Jan	KLM	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 420€

Return flights