How far is Casper, WY, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Casper (Casper–Natrona County International Airport) is 396 miles / 638 kilometers / 344 nautical miles.
The driving distance from Great Falls (GTF) to Casper (CPR) is 508 miles / 817 kilometers, and travel time by car is about 10 hours 21 minutes.
Great Falls International Airport – Casper–Natrona County International Airport
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Distance from Great Falls to Casper
There are several ways to calculate the distance from Great Falls to Casper. 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 Great Falls to Casper?
The estimated flight time from Great Falls International Airport to Casper–Natrona County International Airport is 1 hour and 15 minutes.
What is the time difference between Great Falls and Casper?
Flight carbon footprint between Great Falls International Airport (GTF) and Casper–Natrona County International Airport (CPR)
On average, flying from Great Falls to Casper 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 Great Falls to Casper
See the map of the shortest flight path between Great Falls International Airport (GTF) and Casper–Natrona County International Airport (CPR).
Airport information
| Origin | 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 |
| Destination | 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 |