There are
971 mi
from Flower Mound, TX to Dyer, IN
That's the driving distance. It would take 17 hours 18 mins to go from Flower Mound, Texas to Dyer, Indiana.
The flight distance (direct flight from Flower Mound, TX to Dyer, IN) is 786.73 mi.
971 mi = 1,563.02 kms