Map of flight path and driving directions from Spokane to Casper.
Shortest flight path between Spokane International Airport (GEG) and Casper–Natrona County International Airport (CPR).
How far is Casper from Spokane?
There are several ways to calculate distances between Spokane and Casper. Here are two common methods:Vincenty's formula (applied above)
- 629.445 miles
- 1012.993 kilometers
- 546.973 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
- 628.240 miles
- 1011.054 kilometers
- 545.926 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).
Time difference and current local times
The time difference between Spokane and Casper is 1 hour. Casper is 1 hour ahead of Spokane.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 116 kg (257 pounds).
Frequent Flyer Miles Calculator
Spokane (GEG) → Casper (CPR).