Miles between Houston, TX and Alton, IL

There are
804 mi
from Houston, TX to Alton, IL

That's the driving distance. It would take 14 hours 55 mins to go from Houston, Texas to Alton, Illinois.

The flight distance (direct flight from Houston, TX to Alton, IL) is 696.45 mi.

804 mi = 1,294.15 kms