There are
1,186 mi
from Ann Arbor, MI to Duncanville, TX
That's the driving distance. It would take 21 hours 5 mins to go from Ann Arbor, Michigan to Duncanville, Texas.
The flight distance (direct flight from Ann Arbor, MI to Duncanville, TX) is 979.61 mi.
1,186 mi = 1.61 kms