There are
783 mi
from Chattanooga, TN to Garland, TX
That's the driving distance. It would take 13 hours 55 mins to go from Chattanooga, Tennessee to Garland, Texas.
The flight distance (direct flight from Chattanooga, TN to Garland, TX) is 665.22 mi.
783 mi = 1,259.63 kms