There are
2,465 mi
from Vacaville, CA to Youngstown, OH
That's the driving distance. It would take 1 day 18 hours to go from Vacaville, California to Youngstown, Ohio.
The flight distance (direct flight from Vacaville, CA to Youngstown, OH) is 2,184.24 mi.
2,465 mi = 3.22 kms