How far is Johnstown, PA, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Johnstown (Johnstown–Cambria County Airport) is 550 miles / 885 kilometers / 478 nautical miles.
The driving distance from Rockford (RFD) to Johnstown (JST) is 622 miles / 1001 kilometers, and travel time by car is about 11 hours 49 minutes.
Chicago Rockford International Airport – Johnstown–Cambria County Airport
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Distance from Rockford to Johnstown
There are several ways to calculate the distance from Rockford to Johnstown. Here are two standard methods:
Vincenty's formula (applied above)- 549.607 miles
- 884.506 kilometers
- 477.595 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- 548.310 miles
- 882.419 kilometers
- 476.468 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 Johnstown?
The estimated flight time from Chicago Rockford International Airport to Johnstown–Cambria County Airport is 1 hour and 32 minutes.
What is the time difference between Rockford and Johnstown?
The time difference between Rockford and Johnstown is 1 hour. Johnstown is 1 hour ahead of Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Johnstown–Cambria County Airport (JST)
On average, flying from Rockford to Johnstown generates about 106 kg of CO2 per passenger, and 106 kilograms equals 234 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 Johnstown
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Johnstown–Cambria County Airport (JST).
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 | Johnstown–Cambria County Airport |
|---|---|
| City: | Johnstown, PA |
| Country: | United States |
| IATA Code: | JST |
| ICAO Code: | KJST |
| Coordinates: | 40°18′57″N, 78°50′2″W |