There are
693 mi
from Chattanooga, TN to Middletown, DE
That's the driving distance. It would take 13 hours 13 mins to go from Chattanooga, Tennessee to Middletown, Delaware.
The flight distance (direct flight from Chattanooga, TN to Middletown, DE) is 608.59 mi.
693 mi = 1,115.58 kms