There are
1,688 mi
from Lewisville, TX to Hayward, CA
That's the driving distance. It would take 1 day 6 hours to go from Lewisville, Texas to Hayward, California.
The flight distance (direct flight from Lewisville, TX to Hayward, CA) is 1,444.59 mi.
1,688 mi = 1.61 kms