Cheapest return flights from Washington to Berlin in September from $623

AirHint found the following cheapest return flights from Washington (IAD) to Berlin (BER) in September 2025 (see full year).

Return flights

23 Sep - 28 Sep SWISS
21 Sep - 28 Sep SWISS
18 Sep - 28 Sep Brussels Airlines
21 Sep - 26 Sep Scandinavian Airlines
26 Sep - 30 Sep Air France
28 Sep - 18 Oct SWISS
27 Sep - 18 Oct SWISS
20 Sep - 26 Sep Scandinavian Airlines
29 Sep - 02 Oct Scandinavian Airlines
21 Sep - 11 Oct SWISS
18 Sep - 11 Oct Brussels Airlines
22 Sep - 27 Sep Frontier Airlines
24 Sep - 27 Sep Turkish Airlines
20 Sep - 27 Sep SWISS
21 Sep - 27 Sep Frontier Airlines
17 Sep - 11 Oct Lufthansa

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

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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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