There are
1,840 mi
from Ukiah, CA to Duncanville, TX
That's the driving distance. It would take 1 day 8 hours to go from Ukiah, California to Duncanville, Texas.
The flight distance (direct flight from Ukiah, CA to Duncanville, TX) is 1,532.64 mi.
1,840 mi = 2,961.22 kms