Map of flight path and driving directions from Dallas to Decatur.
Shortest flight path between Dallas Love Field (DAL) and Decatur Airport (DEC).
How far is Decatur from Dallas?
There are several ways to calculate distances between Dallas and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 655.612 miles
- 1055.105 kilometers
- 569.711 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
- 655.654 miles
- 1055.173 kilometers
- 569.748 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 Dallas and Decatur.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 120 kg (263 pounds).
Frequent Flyer Miles Calculator
Dallas (DAL) → Decatur (DEC).