There are
749 mi
from Lawton, OK to Clarksville, TN
That's the driving distance. It would take 13 hours 23 mins to go from Lawton, Oklahoma to Clarksville, Tennessee.
The flight distance (direct flight from Lawton, OK to Clarksville, TN) is 634.01 mi.
749 mi = 1,204.66 kms