Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Chicago, IL (MDW)

Flight distance from Rock Springs to Chicago (Southwest Wyoming Regional Airport – Chicago Midway International Airport) is 1100 miles / 1770 kilometers / 956 nautical miles. Estimated flight time is 2 hours 34 minutes.

Driving distance from Rock Springs (RKS) to Chicago (MDW) is 1210 miles / 1948 kilometers and travel time by car is about 19 hours 55 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Chicago Midway International Airport (MDW).

How far is Chicago from Rock Springs?

There are several ways to calculate distances between Rock Springs and Chicago. Here are two common 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 earth.

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).

Airport information


A 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

B 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

Time difference and current local times

The time difference between Rock Springs and Chicago is 1 hour. Chicago is 1 hour ahead of Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Chicago, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 157 kg (346 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Chicago (MDW).

Distance:
1100
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1100

Round trip?