There are
2,009 mi
from Clarksville, TN to La Mesa, CA
That's the driving distance. It would take 1 day 10 hours to go from Clarksville, Tennessee to La Mesa, California.
The flight distance (direct flight from Clarksville, TN to La Mesa, CA) is 1,699.13 mi.
2,009 mi = 3.22 kms