Air Miles Calculator

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

Flight distance from Chicago to Rock Springs (Chicago O'Hare International Airport – Southwest Wyoming Regional Airport) is 1091 miles / 1755 kilometers / 948 nautical miles. Estimated flight time is 2 hours 33 minutes.

Driving distance from Chicago (ORD) to Rock Springs (RKS) is 1209 miles / 1946 kilometers and travel time by car is about 19 hours 47 minutes.

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

Shortest flight path between Chicago O'Hare International Airport (ORD) and Southwest Wyoming Regional Airport (RKS).

How far is Rock Springs from Chicago?

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

Vincenty's formula (applied above)
  • 1090.524 miles
  • 1755.028 kilometers
  • 947.640 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
  • 1087.688 miles
  • 1750.464 kilometers
  • 945.175 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B 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

Time difference and current local times

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

Time Difference

Chicago, IL

 CST

Rock Springs, WY

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 156 kg (344 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Rock Springs (RKS).

Distance:
1091
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1091

Round trip?