Air Miles Calculator

Distance between Dallas, TX (DAL) and Decatur, IL (DEC)

Distance from Dallas to Decatur (Dallas Love Field – Decatur Airport) is 656 miles / 1055 kilometers / 570 nautical miles.

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).

Flight duration

Estimated flight time from Dallas Love Field (DAL) to Decatur Airport (DEC) is 1 hour 44 minutes.

Time difference and current local times

There is no time difference between Dallas and Decatur.

Time Difference

Dallas
Decatur

Dallas, TX

 CST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 120 kg (263 pounds).

Airport information


A Dallas Love Field
City: Dallas, TX
Country: United States Flag of United States
IATA Code: DAL
ICAO Code: KDAL
Coordinates: 32°50′49″N, 96°51′6″W

B Decatur Airport
City: Decatur, IL
Country: United States Flag of United States
IATA Code: DEC
ICAO Code: KDEC
Coordinates: 39°50′4″N, 88°51′56″W

Map

Dallas to Decatur flight map.

Frequent Flyer Miles Calculator

Dallas (DAL) → Decatur (DEC).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
656
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
656

Round trip?