Air Miles Calculator

Distance between Casper, WY (CPR) and Williston, ND (XWA)

Flight distance from Casper to Williston (Casper–Natrona County International Airport – Williston Basin International Airport) is 392 miles / 631 kilometers / 341 nautical miles. Estimated flight time is 1 hour 14 minutes.

Driving distance from Casper (CPR) to Williston (XWA) is 526 miles / 846 kilometers and travel time by car is about 9 hours 46 minutes.

Map of flight path and driving directions from Casper to Williston.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Williston Basin International Airport (XWA).

How far is Williston from Casper?

There are several ways to calculate distances between Casper and Williston. Here are two common methods:

Vincenty's formula (applied above)
  • 392.194 miles
  • 631.175 kilometers
  • 340.807 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
  • 392.233 miles
  • 631.237 kilometers
  • 340.841 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).

Airport information


A Casper–Natrona County International Airport
City: Casper, WY
Country: United States Flag of United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W

B Williston Basin International Airport
City: Williston, ND
Country: United States Flag of United States
IATA Code: XWA
ICAO Code: KXWA
Coordinates: 48°15′30″N, 103°44′55″W

Time difference and current local times

There is no time difference between Casper and Williston.

Time Difference

Casper, WY

 MST

Williston, ND

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 83 kg (182 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Williston (XWA).

Distance:
392
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
392

Round trip?