There are
255 mi
from Chattanooga, TN to Lexington, KY
That's the driving distance. It would take 5 hours 7 mins to go from Chattanooga, Tennessee to Lexington, Kentucky.
The flight distance (direct flight from Chattanooga, TN to Lexington, KY) is 211.71 mi.
255 mi = 410.51 kms