There are
1,029 mi
from Chattanooga, TN to Yankton, SD
That's the driving distance. It would take 19 hours 1 min to go from Chattanooga, Tennessee to Yankton, South Dakota.
The flight distance (direct flight from Chattanooga, TN to Yankton, SD) is 843.53 mi.
1,029 mi = 1.61 kms