How far is Rockford, IL, from Reading, PA?
The distance between Reading (Reading Regional Airport) and Rockford (Chicago Rockford International Airport) is 694 miles / 1117 kilometers / 603 nautical miles.
The driving distance from Reading (RDG) to Rockford (RFD) is 802 miles / 1290 kilometers, and travel time by car is about 14 hours 48 minutes.
Reading Regional Airport – Chicago Rockford International Airport
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Distance from Reading to Rockford
There are several ways to calculate the distance from Reading to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 694.212 miles
- 1117.226 kilometers
- 603.254 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- 692.511 miles
- 1114.489 kilometers
- 601.776 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 Reading to Rockford?
The estimated flight time from Reading Regional Airport to Chicago Rockford International Airport is 1 hour and 48 minutes.
What is the time difference between Reading and Rockford?
The time difference between Reading and Rockford is 1 hour. Rockford is 1 hour behind Reading.
Flight carbon footprint between Reading Regional Airport (RDG) and Chicago Rockford International Airport (RFD)
On average, flying from Reading to Rockford generates about 124 kg of CO2 per passenger, and 124 kilograms equals 273 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Reading to Rockford
See the map of the shortest flight path between Reading Regional Airport (RDG) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Reading Regional Airport |
|---|---|
| City: | Reading, PA |
| Country: | United States  |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″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 |