There are
1,590 mi
from Lewisville, TX to Caldwell, ID
That's the driving distance. It would take 1 day 3 hours to go from Lewisville, Texas to Caldwell, Idaho.
The flight distance (direct flight from Lewisville, TX to Caldwell, ID) is 1,289.51 mi.
1,590 mi = 1.61 kms