How far is Rome from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Rome (Ciampino–G. B. Pastine International Airport) is 4837 miles / 7785 kilometers / 4203 nautical miles.
Chicago O'Hare International Airport – Ciampino–G. B. Pastine International Airport
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Distance from Chicago to Rome
There are several ways to calculate the distance from Chicago to Rome. Here are two standard methods:
Vincenty's formula (applied above)- 4837.187 miles
- 7784.697 kilometers
- 4203.400 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- 4824.750 miles
- 7764.682 kilometers
- 4192.593 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 Chicago to Rome?
The estimated flight time from Chicago O'Hare International Airport to Ciampino–G. B. Pastine International Airport is 9 hours and 39 minutes.
What is the time difference between Chicago and Rome?
The time difference between Chicago and Rome is 7 hours. Rome is 7 hours ahead of Chicago.
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Ciampino–G. B. Pastine International Airport (CIA)
On average, flying from Chicago to Rome generates about 563 kg of CO2 per passenger, and 563 kilograms equals 1 241 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Chicago to Rome
See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Ciampino–G. B. Pastine International Airport (CIA).
Airport information
| Origin | 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 |
| Destination | Ciampino–G. B. Pastine International Airport |
|---|---|
| City: | Rome |
| Country: | Italy  |
| IATA Code: | CIA |
| ICAO Code: | LIRA |
| Coordinates: | 41°47′57″N, 12°35′41″E |