There are
775 mi
from Waterloo, IA to Chattanooga, TN
That's the driving distance. It would take 14 hours 38 mins to go from Waterloo, Iowa to Chattanooga, Tennessee.
The flight distance (direct flight from Waterloo, IA to Chattanooga, TN) is 638.48 mi.
775 mi = 1,247.98 kms