Air Miles Calculator logo

How far is Rock Springs, WY, from Chicago, IL?

The distance between Chicago (Chicago Midway International Airport) and Rock Springs (Southwest Wyoming Regional Airport) is 1100 miles / 1770 kilometers / 956 nautical miles.

The driving distance from Chicago (MDW) to Rock Springs (RKS) is 1210 miles / 1947 kilometers, and travel time by car is about 21 hours 9 minutes.

Chicago Midway International Airport – Southwest Wyoming Regional Airport

Distance arrow
1100
Miles
Distance arrow
1770
Kilometers
Distance arrow
956
Nautical miles

Search flights

Distance from Chicago to Rock Springs

There are several ways to calculate the distance from Chicago to Rock Springs. Here are two standard methods:

Vincenty's formula (applied above)
  • 1099.750 miles
  • 1769.875 kilometers
  • 955.656 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
  • 1096.893 miles
  • 1765.279 kilometers
  • 953.174 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 Chicago to Rock Springs?

The estimated flight time from Chicago Midway International Airport to Southwest Wyoming Regional Airport is 2 hours and 34 minutes.

Flight carbon footprint between Chicago Midway International Airport (MDW) and Southwest Wyoming Regional Airport (RKS)

On average, flying from Chicago to Rock Springs generates about 157 kg of CO2 per passenger, and 157 kilograms equals 346 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chicago to Rock Springs

See the map of the shortest flight path between Chicago Midway International Airport (MDW) and Southwest Wyoming Regional Airport (RKS).

Airport information

Origin Chicago Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W
Destination Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W