Distance between Casper, WY (CPR) and Rapid City, SD (RAP)

Flight distance from Casper to Rapid City (Casper–Natrona County International Airport – Rapid City Regional Airport) is 188 miles / 303 kilometers / 164 nautical miles. Estimated flight time is 51 minutes.

Driving distance from Casper (CPR) to Rapid City (RAP) is 267 miles / 430 kilometers and travel time by car is about 5 hours 6 minutes.

How far is Rapid City from Casper?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common 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 earth.

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).

Flight Duration

Estimated flight time from Casper–Natrona County International Airport to Rapid City Regional Airport is 51 minutes.

Time difference

There is no time difference between Casper and Rapid City.

Carbon dioxide emissions

On average flying from Casper to Rapid City generates about 53 kg of CO2 per passenger, 53 kilograms is equal to 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 Casper to Rapid City

Shortest flight path between Casper–Natrona County International Airport (CPR) and Rapid City Regional Airport (RAP).

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	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