There are
968 mi
from Lewisville, TX to Stoughton, WI
That's the driving distance. It would take 18 hours 4 mins to go from Lewisville, Texas to Stoughton, Wisconsin.
The flight distance (direct flight from Lewisville, TX to Stoughton, WI) is 801.94 mi.
968 mi = 1,557.42 kms