How far is Rockford, IL, from Pierre, SD?
The distance between Pierre (Pierre Regional Airport) and Rockford (Chicago Rockford International Airport) is 584 miles / 939 kilometers / 507 nautical miles.
The driving distance from Pierre (PIR) to Rockford (RFD) is 728 miles / 1171 kilometers, and travel time by car is about 12 hours 56 minutes.
Pierre Regional Airport – Chicago Rockford International Airport
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Distance from Pierre to Rockford
There are several ways to calculate the distance from Pierre to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 583.566 miles
- 939.159 kilometers
- 507.105 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- 582.136 miles
- 936.856 kilometers
- 505.862 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 Pierre to Rockford?
The estimated flight time from Pierre Regional Airport to Chicago Rockford International Airport is 1 hour and 36 minutes.
What is the time difference between Pierre and Rockford?
Flight carbon footprint between Pierre Regional Airport (PIR) and Chicago Rockford International Airport (RFD)
On average, flying from Pierre to Rockford generates about 111 kg of CO2 per passenger, and 111 kilograms equals 244 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Pierre to Rockford
See the map of the shortest flight path between Pierre Regional Airport (PIR) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Pierre Regional Airport |
|---|---|
| City: | Pierre, SD |
| Country: | United States  |
| IATA Code: | PIR |
| ICAO Code: | KPIR |
| Coordinates: | 44°22′57″N, 100°17′9″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 |