AirHint found the following cheapest one-way flights from Chicago (ORD) to Rome (FCO) in December 2025 (see full year).
One-Way flights
| 08 Dec | Spirit Airlines | ||
| 09 Dec | jetBlue | ||
| 05 Dec | Frontier Airlines | ||
| 07 Dec | TAP | ||
| 13 Dec | Frontier Airlines | ||
| 29 Dec | Lufthansa | ||
| 30 Dec | Lufthansa | ||
| 09 Dec | United | direct | |
| 03 Dec | United | direct | |
| 08 Dec | United | direct |
Also check the deals for return flights from Chicago to Rome in December.
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