Cheapest return flights from Chicago to Zurich in December from 523€

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

Return flights

09 Dec - 15 Dec Aer Lingus
29 Dec - 12 Jan Scandinavian Airlines
05 Dec - 10 Dec Scandinavian Airlines
01 Dec - 08 Dec Scandinavian Airlines
02 Dec - 09 Dec LOT
08 Dec - 22 Dec Frontier Airlines
01 Dec - 17 Dec Spirit Airlines
02 Dec - 16 Dec Spirit Airlines
12 Dec - 11 Jan Frontier Airlines
05 Dec - 19 Dec Scandinavian Airlines
29 Dec - 12 Jan SWISS direct
29 Dec - 06 Jan Arajet
12 Dec - 26 Dec Frontier Airlines
25 Dec - 06 Jan LOT
13 Dec - 10 Jan Aer Lingus
08 Dec - 04 Jan Frontier Airlines
09 Dec - 04 Jan Icelandair
15 Dec - 29 Dec Frontier Airlines
29 Dec - 06 Jan SWISS direct
09 Dec - 03 Jan Icelandair

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

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