AirHint found the following cheapest one-way flights from Chicago (ORD) to Copenhagen (CPH) in December 2025 (see full year).
One-Way flights
| 31 Dec | TAP | ||
| 24 Dec | Lufthansa | ||
| 25 Dec | Brussels Airlines | ||
| 29 Dec | Brussels Airlines | ||
| 31 Dec | Air France | direct | |
| 29 Dec | Air France | direct | |
| 25 Dec | Air France | direct | |
| 24 Dec | Air France | direct |
Also check the deals for return flights from Chicago to Copenhagen in December.
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