There are
2,345 mi
from Ukiah, CA to Clarksville, TN
That's the driving distance. It would take 1 day 17 hours to go from Ukiah, California to Clarksville, Tennessee.
The flight distance (direct flight from Ukiah, CA to Clarksville, TN) is 1,951.72 mi.
2,345 mi = 3,774.13 kms