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

Return flights

13 Dec - 17 Dec	Scandinavian Airlines
05 Dec - 12 Dec	Scandinavian Airlines
29 Dec - 12 Jan	Scandinavian Airlines
05 Dec - 09 Dec	Scandinavian Airlines
02 Dec - 16 Dec	Turkish Airlines
09 Dec - 16 Dec	United	direct
02 Dec - 16 Dec	United	direct
05 Dec - 09 Dec	United	direct
05 Dec - 12 Dec	United	direct
29 Dec - 12 Jan	United	direct
29 Dec - 05 Jan	United	direct
20 Dec - 29 Dec	Scandinavian Airlines
19 Dec - 26 Dec	United

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 337€

Return flights