There are
841 mi
from Lewisville, TX to Kewanee, IL
That's the driving distance. It would take 15 hours 54 mins to go from Lewisville, Texas to Kewanee, Illinois.
The flight distance (direct flight from Lewisville, TX to Kewanee, IL) is 686.85 mi.
841 mi = 1,354.00 kms