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| Journey Type | Approximate Duration |
|---|---|
| Nonstop ORD–FCO Flight | 9 hr 5 min–9 hr 25 min |
| Fast One-Stop Itinerary | 11 hr 25 min–13 hours |
| Longer Connecting Itinerary | 13–18+ hours |
| Chicago Midway to Rome | Usually 13 hr 45 min or longer |
| Rome-to-Chicago Nonstop | 10 hr 20 min–10 hr 50 min |
| Route Distance | 4,837 miles (7,783 km) |
| Typical Arrival | The following morning |
Rome is usually seven hours ahead of Chicago. The difference can temporarily become six hours because the United States and Europe do not always change their seasonal clocks on the same date.
| Time in Chicago | Usual Time in Rome |
|---|---|
| 8:00 AM | 3:00 PM |
| 12:00 PM | 7:00 PM |
| 4:00 PM | 11:00 PM |
| 8:00 PM | 3:00 AM the next day |
The departure and arrival times shown on your ticket are already displayed in the local time of each airport.
Nonstop schedules on this route vary by approximately 20 minutes. Several operating conditions can produce this difference.
O’Hare ground traffic:
Long taxi routes or departure queues can add time before takeoff.
Atlantic winds:
Favorable winds may shorten the journey, while weaker or unfavorable winds can increase it.
Assigned flight path:
Weather or air-traffic restrictions may require a longer route.
Arrival traffic:
The aircraft may enter a landing sequence when Fiumicino is busy.
Schedule allowance:
Airlines may include different amounts of operational time in their timetables.
A nonstop flight from Rome to Chicago generally takes approximately 10 hours 20 minutes to 10 hours 50 minutes.
| Direction | Nonstop Duration | Typical Arrival Day |
|---|---|---|
| Chicago to Rome | 9 hr 5 min–9 hr 25 min | Following day |
| Rome to Chicago | 10 hr 20 min–10 hr 50 min | Same calendar day |