There are
1,448 mi
from Johnson City, TN to Mandan, ND
That's the driving distance. It would take 1 day 2 hours to go from Johnson City, Tennessee to Mandan, North Dakota.
The flight distance (direct flight from Johnson City, TN to Mandan, ND) is 1,197.31 mi.
1,448 mi = 2,330.03 kms