There are
2,423 mi
from Vacaville, CA to Crossville, TN
That's the driving distance. It would take 1 day 18 hours to go from Vacaville, California to Crossville, Tennessee.
The flight distance (direct flight from Vacaville, CA to Crossville, TN) is 2,028.65 mi.
2,423 mi = 3.22 kms