Air Miles Calculator

Distance between Casper, WY (CPR) and Fort Smith, AR (FSM)

Flight distance from Casper to Fort Smith (Casper–Natrona County International Airport – Fort Smith Regional Airport) is 832 miles / 1340 kilometers / 723 nautical miles. Estimated flight time is 2 hours 4 minutes.

Driving distance from Casper (CPR) to Fort Smith (FSM) is 1096 miles / 1764 kilometers and travel time by car is about 17 hours 58 minutes.

Map of flight path and driving directions from Casper to Fort Smith.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Fort Smith Regional Airport (FSM).

How far is Fort Smith from Casper?

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

Vincenty's formula (applied above)
  • 832.368 miles
  • 1339.567 kilometers
  • 723.308 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
  • 831.657 miles
  • 1338.423 kilometers
  • 722.691 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 Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W

Time difference and current local times

The time difference between Casper and Fort Smith is 1 hour. Fort Smith is 1 hour ahead of Casper.

Time Difference

Casper, WY

 MST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 138 kg (304 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Fort Smith (FSM).

Distance:
832
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
832

Round trip?