There are
2,276 mi
from Vacaville, CA to Celina, OH
That's the driving distance. It would take 1 day 15 hours to go from Vacaville, California to Celina, Ohio.
The flight distance (direct flight from Vacaville, CA to Celina, OH) is 1,987 mi.
2,276 mi = 3.22 kms