Cheapest return flights from Washington to Zurich in September from 506€

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

Return flights

29 Sep - 25 Oct Scandinavian Airlines
28 Sep - 18 Oct Turkish Airlines
27 Sep - 18 Oct Turkish Airlines
26 Sep - 18 Oct Turkish Airlines
21 Sep - 28 Sep Turkish Airlines
25 Sep - 30 Sep Frontier Airlines
17 Sep - 08 Oct Royal Air Maroc
19 Sep - 25 Sep Turkish Airlines
17 Sep - 17 Oct Royal Air Maroc
17 Sep - 24 Sep Scandinavian Airlines
20 Sep - 11 Oct Turkish Airlines
17 Sep - 01 Oct Turkish Airlines
17 Sep - 11 Oct Turkish Airlines
18 Sep - 03 Oct Scandinavian Airlines
17 Sep - 20 Sep Royal Air Maroc
20 Sep - 27 Sep Frontier Airlines
25 Sep - 30 Sep SWISS direct
17 Sep - 24 Sep SWISS direct
19 Sep - 25 Sep SWISS direct
20 Sep - 27 Sep SWISS direct

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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