AirHint found the following cheapest return flights from Washington (IAD) to Zurich (ZRH) in May 2026 (see full year).

Return flights

17 May - 24 May	Scandinavian Airlines
18 May - 25 May	Scandinavian Airlines
14 May - 21 May	Scandinavian Airlines
01 May - 03 May	Icelandair
20 May - 27 May	Icelandair
20 May - 03 Jun	Icelandair
15 May - 22 May	Scandinavian Airlines
26 May - 05 Jun	Austrian Airlines
01 May - 03 May	SWISS	direct
20 May - 27 May	SWISS	direct
15 May - 22 May	United	direct
14 May - 21 May	SWISS	direct
20 May - 03 Jun	SWISS	direct
26 May - 05 Jun	SWISS	direct
28 May - 02 Jun	British Airways

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

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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Cheapest return flights from Washington to Zurich in May from 467€

Return flights