How far is Casper, WY, from Rapid City, SD?
The distance between Rapid City (Rapid City Regional Airport) and Casper (Casper–Natrona County International Airport) is 188 miles / 303 kilometers / 164 nautical miles.
The driving distance from Rapid City (RAP) to Casper (CPR) is 268 miles / 431 kilometers, and travel time by car is about 5 hours 13 minutes.
Rapid City Regional Airport – Casper–Natrona County International Airport
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Distance from Rapid City to Casper
There are several ways to calculate the distance from Rapid City to Casper. Here are two standard methods:
Vincenty's formula (applied above)- 188.400 miles
- 303.200 kilometers
- 163.715 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- 188.007 miles
- 302.568 kilometers
- 163.374 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 Rapid City to Casper?
The estimated flight time from Rapid City Regional Airport to Casper–Natrona County International Airport is 51 minutes.
What is the time difference between Rapid City and Casper?
Flight carbon footprint between Rapid City Regional Airport (RAP) and Casper–Natrona County International Airport (CPR)
On average, flying from Rapid City to Casper generates about 53 kg of CO2 per passenger, and 53 kilograms equals 116 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rapid City to Casper
See the map of the shortest flight path between Rapid City Regional Airport (RAP) and Casper–Natrona County International Airport (CPR).
Airport information
| Origin | Rapid City Regional Airport |
|---|---|
| City: | Rapid City, SD |
| Country: | United States  |
| IATA Code: | RAP |
| ICAO Code: | KRAP |
| Coordinates: | 44°2′43″N, 103°3′25″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 |