Distance between Casper, WY (CPR) and Butte, MT (BTM)

Flight distance from Casper to Butte (Casper–Natrona County International Airport – Bert Mooney Airport) is 365 miles / 587 kilometers / 317 nautical miles. Estimated flight time is 1 hour 11 minutes.

Driving distance from Casper (CPR) to Butte (BTM) is 508 miles / 818 kilometers and travel time by car is about 8 hours 13 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Bert Mooney Airport (BTM).

How far is Butte from Casper?

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

Vincenty's formula (applied above)
• 365.004 miles
• 587.417 kilometers
• 317.180 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
• 364.414 miles
• 586.467 kilometers
• 316.667 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
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W

B Bert Mooney Airport
City: Butte, MT
Country: United States
IATA Code: BTM
ICAO Code: KBTM
Coordinates: 45°57′17″N, 112°29′49″W

Time difference and current local times

There is no time difference between Casper and Butte.

MDT

MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 79 kg (174 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Butte (BTM).

Distance:
365
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
365

Round trip?