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).
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.
Fort Smith, AR
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 83 kg (182 pounds).
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).