There are
343 mi
from Chattanooga, TN to Kennett, MO
That's the driving distance. It would take 6 hours 25 mins to go from Chattanooga, Tennessee to Kennett, Missouri.
The flight distance (direct flight from Chattanooga, TN to Kennett, MO) is 278.86 mi.
343 mi = 552.28 kms