There are
668 mi
from Clarksville, TN to Jamestown, NY
That's the driving distance. It would take 12 hours 57 mins to go from Clarksville, Tennessee to Jamestown, New York.
The flight distance (direct flight from Clarksville, TN to Jamestown, NY) is 579.65 mi.
668 mi = 1,074.56 kms