How far is Great Falls, MT, from Casper, WY?
The distance between Casper (Casper–Natrona County International Airport) and Great Falls (Great Falls International Airport) is 396 miles / 638 kilometers / 344 nautical miles.
The driving distance from Casper (CPR) to Great Falls (GTF) is 508 miles / 817 kilometers, and travel time by car is about 10 hours 21 minutes.
Casper–Natrona County International Airport – Great Falls International Airport
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Distance from Casper to Great Falls
There are several ways to calculate the distance from Casper to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 396.275 miles
- 637.742 kilometers
- 344.353 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- 396.005 miles
- 637.309 kilometers
- 344.119 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 Great Falls?
The estimated flight time from Casper–Natrona County International Airport to Great Falls International Airport is 1 hour and 15 minutes.
What is the time difference between Casper and Great Falls?
Flight carbon footprint between Casper–Natrona County International Airport (CPR) and Great Falls International Airport (GTF)
On average, flying from Casper to Great Falls generates about 83 kg of CO2 per passenger, and 83 kilograms equals 184 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 Great Falls
See the map of the shortest flight path between Casper–Natrona County International Airport (CPR) and Great Falls International Airport (GTF).
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 | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |