# 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
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
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.

MST

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?