Air Miles Calculator

Distance between Casper, WY (CPR) and Chicago, IL (ORD)

Flight distance from Casper to Chicago (Casper–Natrona County International Airport – Chicago O'Hare International Airport) is 949 miles / 1527 kilometers / 825 nautical miles. Estimated flight time is 2 hours 17 minutes.

Driving distance from Casper (CPR) to Chicago (ORD) is 1145 miles / 1842 kilometers and travel time by car is about 18 hours 53 minutes.

Map of flight path and driving directions from Casper to Chicago.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Chicago O'Hare International Airport (ORD).

How far is Chicago from Casper?

There are several ways to calculate distances between Casper and Chicago. 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).

Airport information


A 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

B 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

Time difference and current local times

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

Time Difference

Casper, WY

 MST

Chicago, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 147 kg (325 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Chicago (ORD).

Distance:
949
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
949

Round trip?