How far is Ontario, CA, from Casper, WY?
The distance between Casper (Casper–Natrona County International Airport) and Ontario (Ontario International Airport) is 857 miles / 1380 kilometers / 745 nautical miles.
The driving distance from Casper (CPR) to Ontario (ONT) is 1035 miles / 1666 kilometers, and travel time by car is about 18 hours 35 minutes.
Casper–Natrona County International Airport – Ontario International Airport
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Distance from Casper to Ontario
There are several ways to calculate the distance from Casper to Ontario. Here are two standard 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 planet.
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).
How long does it take to fly from Casper to Ontario?
The estimated flight time from Casper–Natrona County International Airport to Ontario International Airport is 2 hours and 7 minutes.
What is the time difference between Casper and Ontario?
The time difference between Casper and Ontario is 1 hour. Ontario is 1 hour behind Casper.
Flight carbon footprint between Casper–Natrona County International Airport (CPR) and Ontario International Airport (ONT)
On average, flying from Casper to Ontario generates about 140 kg of CO2 per passenger, and 140 kilograms equals 309 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Casper to Ontario
See the map of the shortest flight path between Casper–Natrona County International Airport (CPR) and Ontario International Airport (ONT).
Airport information
| Origin | Casper–Natrona County International Airport |
|---|---|
| City: | Casper, WY |
| Country: | United States  |
| IATA Code: | CPR |
| ICAO Code: | KCPR |
| Coordinates: | 42°54′28″N, 106°27′50″W |
| Destination | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |