There are
2,054 mi
from Vacaville, CA to Lake In The Hills, IL
That's the driving distance. It would take 1 day 11 hours to go from Vacaville, California to Lake In The Hills, Illinois.
The flight distance (direct flight from Vacaville, CA to Lake In The Hills, IL) is 1,782.21 mi.
2,054 mi = 3.22 kms