There are
2,521 mi
from Ukiah, CA to Crossville, TN
That's the driving distance. It would take 1 day 20 hours to go from Ukiah, California to Crossville, Tennessee.
The flight distance (direct flight from Ukiah, CA to Crossville, TN) is 2,087.76 mi.
2,521 mi = 4,056.73 kms