Map of flight path and driving directions from Casper to Ontario.
Shortest flight path between Casper–Natrona County International Airport (CPR) and Ontario International Airport (ONT).
How far is Ontario from Casper?
There are several ways to calculate distances between Casper and Ontario. Here are two common methods:Vincenty's formula (applied above)
- 857.233 miles
- 1379.584 kilometers
- 744.916 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
- 856.958 miles
- 1379.140 kilometers
- 744.676 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 Casper and Ontario is 1 hour. Ontario is 1 hour behind Casper.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 140 kg (309 pounds).
Frequent Flyer Miles Calculator
Casper (CPR) → Ontario (ONT).