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

Return flights

07 Mar - 16 Mar	Scandinavian Airlines
08 Mar - 16 Mar	TAP
31 Mar - 14 Apr	TAP
07 Mar - 14 Mar	Scandinavian Airlines
31 Mar - 07 Apr	TAP
19 Mar - 26 Mar	Scandinavian Airlines
06 Mar - 15 Mar	Icelandair
08 Mar - 16 Mar	SWISS	direct
27 Mar - 10 Apr	Turkish Airlines
07 Mar - 16 Mar	SWISS	direct
07 Mar - 14 Mar	SWISS	direct
31 Mar - 07 Apr	SWISS	direct
31 Mar - 14 Apr	SWISS	direct
27 Mar - 10 Apr	SWISS	direct

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

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 March from $464

Return flights