There are
108 mi
from Chattanooga, TN to Smyrna, GA
That's the driving distance. It would take 2 hours 4 mins to go from Chattanooga, Tennessee to Smyrna, Georgia.
The flight distance (direct flight from Chattanooga, TN to Smyrna, GA) is 92.16 mi.
108 mi = 173.50 kms