Map of flight path and driving directions from Houston to Decatur.
Shortest flight path between Houston William P. Hobby Airport (HOU) and Decatur Airport (DEC).
How far is Decatur from Houston?
There are several ways to calculate distances between Houston and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 790.945 miles
- 1272.903 kilometers
- 687.312 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
- 792.030 miles
- 1274.649 kilometers
- 688.255 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).
Time difference and current local times
There is no time difference between Houston and Decatur.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 134 kg (295 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → Decatur (DEC).