Miles between Chattanooga, TN and Decatur, AL

There are
127 mi
from Chattanooga, TN to Decatur, AL

That's the driving distance. It would take 2 hours 27 mins to go from Chattanooga, Tennessee to Decatur, Alabama.

The flight distance (direct flight from Chattanooga, TN to Decatur, AL) is 99.67 mi.

127 mi = 203.58 kms