Map of flight path and driving directions from Casper to Johnstown.
Shortest flight path between Casper–Natrona County International Airport (CPR) and Johnstown–Cambria County Airport (JST).
How far is Johnstown from Casper?
There are several ways to calculate distances between Casper and Johnstown. Here are two common methods:Vincenty's formula (applied above)
- 1435.621 miles
- 2310.408 kilometers
- 1247.520 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
- 1431.983 miles
- 2304.553 kilometers
- 1244.359 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 Johnstown is 2 hours. Johnstown is 2 hours ahead of Casper.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 175 kg (387 pounds).
Frequent Flyer Miles Calculator
Casper (CPR) → Johnstown (JST).