Miles between Flower Mound, TX and Collinsville, IL

There are
645 mi
from Flower Mound, TX to Collinsville, IL

That's the driving distance. It would take 12 hours 14 mins to go from Flower Mound, Texas to Collinsville, Illinois.

The flight distance (direct flight from Flower Mound, TX to Collinsville, IL) is 557.67 mi.

645 mi = 1,038.57 kms