There are
1,099 mi
from Flower Mound, TX to Hanahan, SC
That's the driving distance. It would take 20 hours 19 mins to go from Flower Mound, Texas to Hanahan, South Carolina.
The flight distance (direct flight from Flower Mound, TX to Hanahan, SC) is 989.44 mi.
1,099 mi = 1.61 kms