How far is Sioux Falls, SD, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Sioux Falls (Sioux Falls Regional Airport) is 400 miles / 643 kilometers / 347 nautical miles.
The driving distance from Rockford (RFD) to Sioux Falls (FSD) is 511 miles / 822 kilometers, and travel time by car is about 9 hours 36 minutes.
Chicago Rockford International Airport – Sioux Falls Regional Airport
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Distance from Rockford to Sioux Falls
There are several ways to calculate the distance from Rockford to Sioux Falls. Here are two standard methods:
Vincenty's formula (applied above)- 399.502 miles
- 642.936 kilometers
- 347.158 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- 398.519 miles
- 641.354 kilometers
- 346.304 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 Sioux Falls?
The estimated flight time from Chicago Rockford International Airport to Sioux Falls Regional Airport is 1 hour and 15 minutes.
What is the time difference between Rockford and Sioux Falls?
There is no time difference between Rockford and Sioux Falls.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Sioux Falls Regional Airport (FSD)
On average, flying from Rockford to Sioux Falls generates about 84 kg of CO2 per passenger, and 84 kilograms equals 185 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 Sioux Falls
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Sioux Falls Regional Airport (FSD).
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 | Sioux Falls Regional Airport |
|---|---|
| City: | Sioux Falls, SD |
| Country: | United States |
| IATA Code: | FSD |
| ICAO Code: | KFSD |
| Coordinates: | 43°34′55″N, 96°44′30″W |