How far is Allentown, PA, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Allentown (Lehigh Valley International Airport) is 717 miles / 1153 kilometers / 623 nautical miles.
The driving distance from Rockford (RFD) to Allentown (ABE) is 817 miles / 1315 kilometers, and travel time by car is about 15 hours 10 minutes.
Chicago Rockford International Airport – Lehigh Valley International Airport
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Distance from Rockford to Allentown
There are several ways to calculate the distance from Rockford to Allentown. Here are two standard methods:
Vincenty's formula (applied above)- 716.504 miles
- 1153.102 kilometers
- 622.625 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- 714.714 miles
- 1150.221 kilometers
- 621.069 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 Allentown?
The estimated flight time from Chicago Rockford International Airport to Lehigh Valley International Airport is 1 hour and 51 minutes.
What is the time difference between Rockford and Allentown?
The time difference between Rockford and Allentown is 1 hour. Allentown is 1 hour ahead of Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Lehigh Valley International Airport (ABE)
On average, flying from Rockford to Allentown generates about 126 kg of CO2 per passenger, and 126 kilograms equals 279 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 Allentown
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Lehigh Valley International Airport (ABE).
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 | Lehigh Valley International Airport |
|---|---|
| City: | Allentown, PA |
| Country: | United States |
| IATA Code: | ABE |
| ICAO Code: | KABE |
| Coordinates: | 40°39′7″N, 75°26′26″W |