There are
1,424 mi
from Irvine, CA to Lewisville, TX
That's the driving distance. It would take 1 day to go from Irvine, California to Lewisville, Texas.
The flight distance (direct flight from Irvine, CA to Lewisville, TX) is 1,199.11 mi.
1,424 mi = 1.61 kms