There are
830 mi
from Chattanooga, TN to Hewitt, TX
That's the driving distance. It would take 15 hours 18 mins to go from Chattanooga, Tennessee to Hewitt, Texas.
The flight distance (direct flight from Chattanooga, TN to Hewitt, TX) is 729.44 mi.
830 mi = 1,335.95 kms