Cheapest return flights from Washington to Zurich in September from $505

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

Return flights

29 Sep - 07 Oct Scandinavian Airlines
24 Sep - 18 Oct Scandinavian Airlines
28 Sep - 08 Oct Scandinavian Airlines
29 Sep - 08 Oct Scandinavian Airlines
28 Sep - 07 Oct Scandinavian Airlines
27 Sep - 06 Oct Scandinavian Airlines
22 Sep - 06 Oct Scandinavian Airlines
30 Sep - 17 Oct Scandinavian Airlines
16 Sep - 01 Oct Scandinavian Airlines
14 Sep - 08 Oct Scandinavian Airlines
11 Sep - 16 Sep Scandinavian Airlines
19 Sep - 26 Sep Turkish Airlines
11 Sep - 14 Sep Scandinavian Airlines
02 Sep - 16 Sep Scandinavian Airlines
02 Sep - 11 Sep Icelandair
18 Sep - 22 Sep Aer Lingus
12 Sep - 22 Sep Scandinavian Airlines
18 Sep - 26 Sep Aer Lingus
04 Sep - 07 Sep Icelandair
18 Sep - 21 Sep Scandinavian Airlines

Also check the deals for one-way flights from Washington to Zurich 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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