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

Return flights

22 Sep - 29 Sep	Air Canada
10 Sep - 16 Sep	Air Canada
25 Sep - 04 Oct	Scandinavian Airlines
23 Sep - 18 Oct	Scandinavian Airlines
25 Sep - 06 Oct	jetBlue
12 Sep - 04 Oct	Scandinavian Airlines
22 Sep - 08 Oct	jetBlue
15 Sep - 19 Sep	Scandinavian Airlines
28 Sep - 14 Oct	jetBlue
08 Sep - 08 Oct	jetBlue
25 Sep - 05 Oct	jetBlue
30 Sep - 25 Oct	jetBlue
21 Sep - 11 Oct	jetBlue
18 Sep - 24 Sep	jetBlue
19 Sep - 22 Sep	jetBlue
18 Sep - 23 Sep	jetBlue
10 Sep - 23 Sep	jetBlue
25 Sep - 30 Sep	Icelandair
12 Sep - 19 Sep	jetBlue
11 Sep - 16 Sep	Icelandair

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

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.

Book a cheap hotel in Amsterdam

Cheap car rent in Amsterdam

Cheapest return flights from Washington to Amsterdam in September from $628

Return flights