There are
958 mi
from Waukegan, IL to Flower Mound, TX
That's the driving distance. It would take 18 hours 1 min to go from Waukegan, Illinois to Flower Mound, Texas.
The flight distance (direct flight from Waukegan, IL to Flower Mound, TX) is 819.37 mi.
958 mi = 1,540.96 kms