How far is Rockford, IL, from Petersburg, AK?
The distance between Petersburg (Petersburg James A. Johnson Airport) and Rockford (Chicago Rockford International Airport) is 2167 miles / 3487 kilometers / 1883 nautical miles.
The driving distance from Petersburg (PSG) to Rockford (RFD) is 2771 miles / 4459 kilometers, and travel time by car is about 64 hours 6 minutes.
Petersburg James A. Johnson Airport – Chicago Rockford International Airport
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Distance from Petersburg to Rockford
There are several ways to calculate the distance from Petersburg to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 2166.938 miles
- 3487.349 kilometers
- 1883.018 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- 2161.704 miles
- 3478.926 kilometers
- 1878.470 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 Petersburg to Rockford?
The estimated flight time from Petersburg James A. Johnson Airport to Chicago Rockford International Airport is 4 hours and 36 minutes.
What is the time difference between Petersburg and Rockford?
Flight carbon footprint between Petersburg James A. Johnson Airport (PSG) and Chicago Rockford International Airport (RFD)
On average, flying from Petersburg to Rockford generates about 237 kg of CO2 per passenger, and 237 kilograms equals 522 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Petersburg to Rockford
See the map of the shortest flight path between Petersburg James A. Johnson Airport (PSG) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Petersburg James A. Johnson Airport |
|---|---|
| City: | Petersburg, AK |
| Country: | United States  |
| IATA Code: | PSG |
| ICAO Code: | PAPG |
| Coordinates: | 56°48′6″N, 132°56′42″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 |