How far is Erie, PA, from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Erie (Erie International Airport) is 458 miles / 737 kilometers / 398 nautical miles.

The driving distance from Rockford (RFD) to Erie (ERI) is 523 miles / 841 kilometers, and travel time by car is about 9 hours 54 minutes.

Distance from Rockford to Erie

There are several ways to calculate the distance from Rockford to Erie. 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 Rockford to Erie?

The estimated flight time from Chicago Rockford International Airport to Erie International Airport is 1 hour and 22 minutes.

What is the time difference between Rockford and Erie?

The time difference between Rockford and Erie is 1 hour. Erie is 1 hour ahead of Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Erie International Airport (ERI)

On average, flying from Rockford to Erie 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 Rockford to Erie

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Erie International Airport (ERI).

Airport information

Origin	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

Destination	Erie International Airport
City:	Erie, PA
Country:	United States
IATA Code:	ERI
ICAO Code:	KERI
Coordinates:	42°4′55″N, 80°10′34″W