# Distance between Champaign, IL (CMI) and Fort Smith, AR (FSM)

Flight distance from Champaign to Fort Smith (University of Illinois Willard Airport – Fort Smith Regional Airport) is 465 miles / 749 kilometers / 404 nautical miles. Estimated flight time is 1 hour 22 minutes.

Driving distance from Champaign (CMI) to Fort Smith (FSM) is 587 miles / 944 kilometers and travel time by car is about 10 hours 16 minutes.

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

Shortest flight path between University of Illinois Willard Airport (CMI) and Fort Smith Regional Airport (FSM).

## How far is Fort Smith from Champaign?

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

Vincenty's formula (applied above)
• 465.135 miles
• 748.562 kilometers
• 404.191 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
• 464.987 miles
• 748.324 kilometers
• 404.062 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 University of Illinois Willard Airport
City: Champaign, IL
Country: United States
IATA Code: CMI
ICAO Code: KCMI
Coordinates: 40°2′21″N, 88°16′41″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

There is no time difference between Champaign and Fort Smith.

CDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 93 kg (206 pounds).

## Frequent Flyer Miles Calculator

Champaign (CMI) → Fort Smith (FSM).

Distance:
465
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
465

Round trip?