How far is Chicago, IL, from Rome?
The distance between Rome (Leonardo da Vinci–Fiumicino Airport) and Chicago (Chicago O'Hare International Airport) is 4823 miles / 7762 kilometers / 4191 nautical miles.
Leonardo da Vinci–Fiumicino Airport – Chicago O'Hare International Airport
Search flights
Distance from Rome to Chicago
There are several ways to calculate the distance from Rome to Chicago. Here are two standard methods:
Vincenty's formula (applied above)- 4823.115 miles
- 7762.052 kilometers
- 4191.173 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 4810.711 miles
- 7742.090 kilometers
- 4180.394 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Rome to Chicago?
The estimated flight time from Leonardo da Vinci–Fiumicino Airport to Chicago O'Hare International Airport is 9 hours and 37 minutes.
What is the time difference between Rome and Chicago?
The time difference between Rome and Chicago is 7 hours. Chicago is 7 hours behind Rome.
Flight carbon footprint between Leonardo da Vinci–Fiumicino Airport (FCO) and Chicago O'Hare International Airport (ORD)
On average, flying from Rome to Chicago generates about 561 kg of CO2 per passenger, and 561 kilograms equals 1 237 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Rome to Chicago
See the map of the shortest flight path between Leonardo da Vinci–Fiumicino Airport (FCO) and Chicago O'Hare International Airport (ORD).
Airport information
| Origin | Leonardo da Vinci–Fiumicino Airport |
|---|---|
| City: | Rome |
| Country: | Italy  |
| IATA Code: | FCO |
| ICAO Code: | LIRF |
| Coordinates: | 41°48′16″N, 12°15′2″E |
| Destination | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States  |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |
Airlines flying from Rome (FCO) to Chicago (ORD)
| American Airlines |
| British Airways |
| Delta Air Lines |
| Finnair |
| Iberia Airlines |