There are
914 mi
from Flower Mound, TX to Seymour, IN
That's the driving distance. It would take 16 hours 19 mins to go from Flower Mound, Texas to Seymour, Indiana.
The flight distance (direct flight from Flower Mound, TX to Seymour, IN) is 748.27 mi.
914 mi = 1,470.44 kms