Map of flight path and driving directions from Huntsville to Decatur.
Shortest flight path between Huntsville International Airport (HSV) and Decatur Airport (DEC).
How far is Decatur from Huntsville?
There are several ways to calculate distances between Huntsville and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 376.465 miles
- 605.862 kilometers
- 327.139 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
- 377.037 miles
- 606.783 kilometers
- 327.636 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 Huntsville and Decatur.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 80 kg (177 pounds).
Frequent Flyer Miles Calculator
Huntsville (HSV) → Decatur (DEC).