Miles between St Charles, MO and Duncanville, TX

There are
643 mi
from St Charles, MO to Duncanville, TX

That's the driving distance. It would take 12 hours 7 mins to go from St Charles, Missouri to Duncanville, Texas.

The flight distance (direct flight from St Charles, MO to Duncanville, TX) is 555.14 mi.

643 mi = 1,034.40 kms