There are
2,181 mi
from Vacaville, CA to Paducah, KY
That's the driving distance. It would take 1 day 13 hours to go from Vacaville, California to Paducah, Kentucky.
The flight distance (direct flight from Vacaville, CA to Paducah, KY) is 1,816.94 mi.
2,181 mi = 3.22 kms