Miles between Dallas, TX and Decatur, AL

There are
639 mi
from Dallas, TX to Decatur, AL

That's the driving distance. It would take 11 hours 47 mins to go from Dallas, Texas to Decatur, Alabama.

The flight distance (direct flight from Dallas, TX to Decatur, AL) is 575.90 mi.

639 mi = 1,027.87 kms