There are
1,702 mi
from Lewisville, TX to Piedmont, CA
That's the driving distance. It would take 1 day 6 hours to go from Lewisville, Texas to Piedmont, California.
The flight distance (direct flight from Lewisville, TX to Piedmont, CA) is 1,453.80 mi.
1,702 mi = 1.61 kms