There are
2,521 mi
from Ukiah, CA to Massillon, OH
That's the driving distance. It would take 1 day 20 hours to go from Ukiah, California to Massillon, Ohio.
The flight distance (direct flight from Ukiah, CA to Massillon, OH) is 2,189.31 mi.
2,521 mi = 4,057.26 kms