How far is Rockford, IL, from Williamsport, PA?
The distance between Williamsport (Williamsport Regional Airport) and Rockford (Chicago Rockford International Airport) is 632 miles / 1018 kilometers / 550 nautical miles.
The driving distance from Williamsport (IPT) to Rockford (RFD) is 706 miles / 1136 kilometers, and travel time by car is about 13 hours 6 minutes.
Williamsport Regional Airport – Chicago Rockford International Airport
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Distance from Williamsport to Rockford
There are several ways to calculate the distance from Williamsport to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 632.476 miles
- 1017.871 kilometers
- 549.606 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- 630.858 miles
- 1015.267 kilometers
- 548.200 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 Williamsport to Rockford?
The estimated flight time from Williamsport Regional Airport to Chicago Rockford International Airport is 1 hour and 41 minutes.
What is the time difference between Williamsport and Rockford?
Flight carbon footprint between Williamsport Regional Airport (IPT) and Chicago Rockford International Airport (RFD)
On average, flying from Williamsport to Rockford generates about 117 kg of CO2 per passenger, and 117 kilograms equals 257 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Williamsport to Rockford
See the map of the shortest flight path between Williamsport Regional Airport (IPT) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Williamsport Regional Airport |
|---|---|
| City: | Williamsport, PA |
| Country: | United States  |
| IATA Code: | IPT |
| ICAO Code: | KIPT |
| Coordinates: | 41°14′30″N, 76°55′15″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 |