Air Miles Calculator logo

How far is Casper, WY, from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Casper (Casper–Natrona County International Airport) is 949 miles / 1527 kilometers / 825 nautical miles.

The driving distance from Chicago (ORD) to Casper (CPR) is 1145 miles / 1843 kilometers, and travel time by car is about 20 hours 1 minutes.

Chicago O'Hare International Airport – Casper–Natrona County International Airport

Distance arrow
949
Miles
Distance arrow
1527
Kilometers
Distance arrow
825
Nautical miles

Search flights

Distance from Chicago to Casper

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

Vincenty's formula (applied above)
  • 949.022 miles
  • 1527.304 kilometers
  • 824.678 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
  • 946.532 miles
  • 1523.295 kilometers
  • 822.514 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 Casper?

The estimated flight time from Chicago O'Hare International Airport to Casper–Natrona County International Airport is 2 hours and 17 minutes.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Casper–Natrona County International Airport (CPR)

On average, flying from Chicago to Casper generates about 147 kg of CO2 per passenger, and 147 kilograms equals 325 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 Casper

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Casper–Natrona County International Airport (CPR).

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 Casper–Natrona County International Airport
City: Casper, WY
Country: United States Flag of United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W