There are
405 mi
from Clarksville, TN to Kankakee, IL
That's the driving distance. It would take 7 hours 30 mins to go from Clarksville, Tennessee to Kankakee, Illinois.
The flight distance (direct flight from Clarksville, TN to Kankakee, IL) is 318.30 mi.
405 mi = 652.51 kms