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

Best time to book flights for Washington (IAD) to Zurich (ZRH) flights at AirHint

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

Return flights

02 Sep - 11 Sep Scandinavian Airlines
14 Sep - 08 Oct Scandinavian Airlines
02 Sep - 09 Sep Scandinavian Airlines
23 Sep - 30 Sep Scandinavian Airlines
19 Sep - 28 Sep Scandinavian Airlines
02 Sep - 11 Sep SWISS direct
14 Sep - 08 Oct SWISS direct
19 Sep - 28 Sep SWISS direct

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

Skyscanner

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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