There are
705 mi
from Wilmington, DE to Chattanooga, TN
That's the driving distance. It would take 13 hours 13 mins to go from Wilmington, Delaware to Chattanooga, Tennessee.
The flight distance (direct flight from Wilmington, DE to Chattanooga, TN) is 626.07 mi.
705 mi = 1,134.73 kms