There are
706 mi
from Chattanooga, TN to Wilmington, DE
That's the driving distance. It would take 13 hours 12 mins to go from Chattanooga, Tennessee to Wilmington, Delaware.
The flight distance (direct flight from Chattanooga, TN to Wilmington, DE) is 626.07 mi.
706 mi = 1,135.94 kms