AirHint found the following cheapest return flights from Chicago (ORD) to Zurich (ZRH) in December 2025 (see full year).

Return flights

12 Dec - 26 Dec	Scandinavian Airlines
09 Dec - 23 Dec	Scandinavian Airlines
09 Dec - 23 Dec	SWISS	direct
10 Dec - 17 Dec	United	direct
16 Dec - 25 Dec	Scandinavian Airlines
30 Dec - 06 Jan	United
16 Dec - 25 Dec	SWISS	direct
12 Dec - 26 Dec	SWISS	direct
25 Dec - 03 Jan	Scandinavian Airlines
26 Dec - 02 Jan	Air Canada
18 Dec - 04 Jan	Icelandair
20 Dec - 27 Dec	United	direct
20 Dec - 04 Jan	Icelandair
26 Dec - 02 Jan	United	direct
25 Dec - 03 Jan	SWISS	direct
18 Dec - 04 Jan	SWISS	direct
20 Dec - 04 Jan	SWISS	direct

Also check the deals for one-way flights from Chicago to Zurich in December.

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 December from $451

Return flights