Cheapest one-way flights from Washington to Zurich in September from 249€

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

One-Way flights

28 Sep Frontier Airlines
23 Sep TAP
25 Sep Frontier Airlines
21 Sep Frontier Airlines
20 Sep Frontier Airlines
17 Sep Royal Air Maroc
19 Sep Frontier Airlines
29 Sep British Airways
28 Sep United direct
23 Sep United direct

Also check the deals for return 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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