How far is Rockford, IL, from Erie, PA?
The distance between Erie (Erie International Airport) and Rockford (Chicago Rockford International Airport) is 458 miles / 737 kilometers / 398 nautical miles.
The driving distance from Erie (ERI) to Rockford (RFD) is 524 miles / 844 kilometers, and travel time by car is about 9 hours 55 minutes.
Erie International Airport – Chicago Rockford International Airport
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Distance from Erie to Rockford
There are several ways to calculate the distance from Erie to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 458.122 miles
- 737.276 kilometers
- 398.097 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- 456.920 miles
- 735.342 kilometers
- 397.053 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 Erie to Rockford?
The estimated flight time from Erie International Airport to Chicago Rockford International Airport is 1 hour and 22 minutes.
What is the time difference between Erie and Rockford?
The time difference between Erie and Rockford is 1 hour. Rockford is 1 hour behind Erie.
Flight carbon footprint between Erie International Airport (ERI) and Chicago Rockford International Airport (RFD)
On average, flying from Erie to Rockford generates about 92 kg of CO2 per passenger, and 92 kilograms equals 204 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Erie to Rockford
See the map of the shortest flight path between Erie International Airport (ERI) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Erie International Airport |
|---|---|
| City: | Erie, PA |
| Country: | United States  |
| IATA Code: | ERI |
| ICAO Code: | KERI |
| Coordinates: | 42°4′55″N, 80°10′34″W |
| Destination | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |