There are
1,727 mi
from Lewisville, TX to Vacaville, CA
That's the driving distance. It would take 1 day 6 hours to go from Lewisville, Texas to Vacaville, California.
The flight distance (direct flight from Lewisville, TX to Vacaville, CA) is 1,444.62 mi.
1,727 mi = 2,779.31 kms