How far is Rockford, IL, from Rock Springs, WY?
The distance between Rock Springs (Southwest Wyoming Regional Airport) and Rockford (Chicago Rockford International Airport) is 1028 miles / 1655 kilometers / 893 nautical miles.
The driving distance from Rock Springs (RKS) to Rockford (RFD) is 1158 miles / 1864 kilometers, and travel time by car is about 20 hours 13 minutes.
Southwest Wyoming Regional Airport – Chicago Rockford International Airport
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Distance from Rock Springs to Rockford
There are several ways to calculate the distance from Rock Springs to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 1028.139 miles
- 1654.630 kilometers
- 893.429 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- 1025.462 miles
- 1650.322 kilometers
- 891.103 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 Rock Springs to Rockford?
The estimated flight time from Southwest Wyoming Regional Airport to Chicago Rockford International Airport is 2 hours and 26 minutes.
What is the time difference between Rock Springs and Rockford?
Flight carbon footprint between Southwest Wyoming Regional Airport (RKS) and Chicago Rockford International Airport (RFD)
On average, flying from Rock Springs to Rockford generates about 153 kg of CO2 per passenger, and 153 kilograms equals 336 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rock Springs to Rockford
See the map of the shortest flight path between Southwest Wyoming Regional Airport (RKS) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Southwest Wyoming Regional Airport |
|---|---|
| City: | Rock Springs, WY |
| Country: | United States  |
| IATA Code: | RKS |
| ICAO Code: | KRKS |
| Coordinates: | 41°35′39″N, 109°3′54″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 |