There are
641 mi
from Lewisville, TX to Shiloh, IL
That's the driving distance. It would take 12 hours 5 mins to go from Lewisville, Texas to Shiloh, Illinois.
The flight distance (direct flight from Lewisville, TX to Shiloh, IL) is 550.44 mi.
641 mi = 1,032.36 kms