There are
1,635 mi
from Lewisville, TX to Gilroy, CA
That's the driving distance. It would take 1 day 4 hours to go from Lewisville, Texas to Gilroy, California.
The flight distance (direct flight from Lewisville, TX to Gilroy, CA) is 1,412.89 mi.
1,635 mi = 2,630.48 kms