Map of flight path and driving directions from Chicago to Casper.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Casper–Natrona County International Airport (CPR).
How far is Casper from Chicago?
There are several ways to calculate distances between Chicago and Casper. Here are two common 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 earth.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).
|A||Chicago O'Hare International Airport|
|B||Casper–Natrona County International Airport|
Time difference and current local times
The time difference between Chicago and Casper is 1 hour. Casper is 1 hour behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 147 kg (325 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Casper (CPR).