There are
1,422 mi
from Chattanooga, TN to Mandan, ND
That's the driving distance. It would take 1 day 1 hour to go from Chattanooga, Tennessee to Mandan, North Dakota.
The flight distance (direct flight from Chattanooga, TN to Mandan, ND) is 1,146.54 mi.
1,422 mi = 1.61 kms