Air Miles Calculator

Distance between Houston, TX (HOU) and Fort Smith, AR (FSM)

Distance from Houston to Fort Smith (William P. Hobby Airport – Fort Smith Regional Airport) is 396 miles / 637 kilometers / 344 nautical miles.

How far is Fort Smith from Houston?

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

Vincenty's formula (applied above)
  • 395.756 miles
  • 636.908 kilometers
  • 343.903 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
  • 396.790 miles
  • 638.572 kilometers
  • 344.801 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).

Flight duration

Estimated flight time from William P. Hobby Airport (HOU) to Fort Smith Regional Airport (FSM) is 1 hour 14 minutes.

Time difference and current local times

There is no time difference between Houston and Fort Smith.

Time Difference

Houston
Fort Smith

Houston, TX

 CDT

Fort Smith, AR

 CDT

Carbon dioxide emissions

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

Airport information


A William P. Hobby Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″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

Houston to Fort Smith flight path

Shortest flight path between William P. Hobby Airport (HOU) and Fort Smith Regional Airport (FSM).

Frequent Flyer Miles Calculator

Houston (HOU) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
396
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
396

Round trip?