There are
1,678 mi
from Lewisville, TX to Pleasanton, CA
That's the driving distance. It would take 1 day 5 hours to go from Lewisville, Texas to Pleasanton, California.
The flight distance (direct flight from Lewisville, TX to Pleasanton, CA) is 1,433.33 mi.
1,678 mi = 1.61 kms