Miles between Flower Mound, TX and Alton, IL

There are
648 mi
from Flower Mound, TX to Alton, IL

That's the driving distance. It would take 12 hours 23 mins to go from Flower Mound, Texas to Alton, Illinois.

The flight distance (direct flight from Flower Mound, TX to Alton, IL) is 560.28 mi.

648 mi = 1,043.48 kms