There are
964 mi
from Flower Mound, TX to Antioch, IL
That's the driving distance. It would take 18 hours 16 mins to go from Flower Mound, Texas to Antioch, Illinois.
The flight distance (direct flight from Flower Mound, TX to Antioch, IL) is 817.06 mi.
964 mi = 1,551.97 kms