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

Return flights

19 Aug - 29 Aug	Scandinavian Airlines
19 Aug - 26 Aug	Aer Lingus
20 Aug - 27 Aug	Scandinavian Airlines
19 Aug - 13 Sep	Scandinavian Airlines
26 Aug - 08 Sep	Aer Lingus
30 Aug - 13 Sep	Icelandair
30 Aug - 20 Sep	Icelandair
27 Aug - 20 Sep	Scandinavian Airlines
27 Aug - 03 Sep	Scandinavian Airlines
22 Aug - 26 Aug	Aer Lingus
27 Aug - 01 Sep	Icelandair
21 Aug - 13 Sep	Icelandair
18 Aug - 24 Aug	SWISS
28 Aug - 31 Aug	United	direct
28 Aug - 01 Sep	United	direct
28 Aug - 20 Sep	United
18 Aug - 31 Aug	TAP
19 Aug - 20 Aug	Aer Lingus
17 Aug - 31 Aug	Frontier Airlines
29 Aug - 31 Aug	Aer Lingus

Also check the deals for one-way flights from Washington to Amsterdam in August.

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 August from 568€

Return flights