There are
2,344 mi
from Ukiah, CA to Clarksville, IN
That's the driving distance. It would take 1 day 17 hours to go from Ukiah, California to Clarksville, Indiana.
The flight distance (direct flight from Ukiah, CA to Clarksville, IN) is 2,005.04 mi.
2,344 mi = 3,772.74 kms