How far is Casper, WY, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Casper (Casper–Natrona County International Airport) is 937 miles / 1508 kilometers / 814 nautical miles.
The driving distance from Decatur (DEC) to Casper (CPR) is 1107 miles / 1781 kilometers, and travel time by car is about 19 hours 39 minutes.
Decatur Airport – Casper–Natrona County International Airport
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Distance from Decatur to Casper
There are several ways to calculate the distance from Decatur to Casper. Here are two standard methods:
Vincenty's formula (applied above)- 937.212 miles
- 1508.297 kilometers
- 814.415 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- 934.977 miles
- 1504.700 kilometers
- 812.473 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 Decatur to Casper?
The estimated flight time from Decatur Airport to Casper–Natrona County International Airport is 2 hours and 16 minutes.
What is the time difference between Decatur and Casper?
The time difference between Decatur and Casper is 1 hour. Casper is 1 hour behind Decatur.
Flight carbon footprint between Decatur Airport (DEC) and Casper–Natrona County International Airport (CPR)
On average, flying from Decatur to Casper generates about 146 kg of CO2 per passenger, and 146 kilograms equals 323 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Decatur to Casper
See the map of the shortest flight path between Decatur Airport (DEC) and Casper–Natrona County International Airport (CPR).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″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 |