There are
393 mi
from Chattanooga, TN to Ridgeland, MS
That's the driving distance. It would take 7 hours 9 mins to go from Chattanooga, Tennessee to Ridgeland, Mississippi.
The flight distance (direct flight from Chattanooga, TN to Ridgeland, MS) is 330.81 mi.
393 mi = 632.10 kms