How far is Petersburg, AK, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Petersburg (Petersburg James A. Johnson Airport) is 2167 miles / 3487 kilometers / 1883 nautical miles.
The driving distance from Rockford (RFD) to Petersburg (PSG) is 2776 miles / 4467 kilometers, and travel time by car is about 64 hours 16 minutes.
Chicago Rockford International Airport – Petersburg James A. Johnson Airport
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Distance from Rockford to Petersburg
There are several ways to calculate the distance from Rockford to Petersburg. 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 Rockford to Petersburg?
The estimated flight time from Chicago Rockford International Airport to Petersburg James A. Johnson Airport is 4 hours and 36 minutes.
What is the time difference between Rockford and Petersburg?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Petersburg James A. Johnson Airport (PSG)
On average, flying from Rockford to Petersburg 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 Rockford to Petersburg
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Petersburg James A. Johnson Airport (PSG).
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 | 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 |