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

The distance between Chicago (Chicago O'Hare International Airport) and Rock Springs (Southwest Wyoming Regional Airport) is 1091 miles / 1755 kilometers / 948 nautical miles.

The driving distance from Chicago (ORD) to Rock Springs (RKS) is 1209 miles / 1946 kilometers, and travel time by car is about 21 hours 4 minutes.

Chicago O'Hare International Airport – Southwest Wyoming Regional Airport

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1091
Miles
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1755
Kilometers
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948
Nautical miles

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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)
  • 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 planet.

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).

How long does it take to fly from Chicago to Rock Springs?

The estimated flight time from Chicago O'Hare International Airport to Southwest Wyoming Regional Airport is 2 hours and 33 minutes.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Southwest Wyoming Regional Airport (RKS)

On average, flying from Chicago to Rock Springs generates about 156 kg of CO2 per passenger, and 156 kilograms equals 344 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 O'Hare International Airport (ORD) and Southwest Wyoming Regional Airport (RKS).

Airport information

Origin 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
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