There are
2,397 mi
from Ukiah, CA to Piqua, OH
That's the driving distance. It would take 1 day 18 hours to go from Ukiah, California to Piqua, Ohio.
The flight distance (direct flight from Ukiah, CA to Piqua, OH) is 2,057.39 mi.
2,397 mi = 3,857.97 kms