How far is Williamsport, PA, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Williamsport (Williamsport Regional Airport) is 632 miles / 1018 kilometers / 550 nautical miles.
The driving distance from Rockford (RFD) to Williamsport (IPT) is 705 miles / 1134 kilometers, and travel time by car is about 13 hours 7 minutes.
Chicago Rockford International Airport – Williamsport Regional Airport
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Distance from Rockford to Williamsport
There are several ways to calculate the distance from Rockford to Williamsport. 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 Rockford to Williamsport?
The estimated flight time from Chicago Rockford International Airport to Williamsport Regional Airport is 1 hour and 41 minutes.
What is the time difference between Rockford and Williamsport?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Williamsport Regional Airport (IPT)
On average, flying from Rockford to Williamsport 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 Rockford to Williamsport
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Williamsport Regional Airport (IPT).
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 | Williamsport Regional Airport |
|---|---|
| City: | Williamsport, PA |
| Country: | United States |
| IATA Code: | IPT |
| ICAO Code: | KIPT |
| Coordinates: | 41°14′30″N, 76°55′15″W |