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

Return flights

08 May - 22 May	Scandinavian Airlines
05 May - 19 May	Turkish Airlines
15 May - 29 May	TAP
20 May - 26 May	Scandinavian Airlines
26 May - 09 Jun	Aer Lingus
25 May - 08 Jun	Aer Lingus
26 May - 07 Jun	Aer Lingus
26 May - 20 Jun	Aer Lingus
05 May - 19 May	SWISS	direct
15 May - 22 May	Icelandair
08 May - 22 May	SWISS	direct
20 May - 26 May	SWISS	direct
25 May - 01 Jun	Icelandair
15 May - 29 May	SWISS	direct
25 May - 08 Jun	SWISS	direct
26 May - 20 Jun	SWISS	direct
21 May - 01 Jun	United
22 May - 01 Jun	SWISS	direct

Also check the deals for one-way flights from Chicago 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 Chicago to Zurich in May from 507€

Return flights