Miles between San Antonio, TX and Alton, IL

There are
920 mi
from San Antonio, TX to Alton, IL

That's the driving distance. It would take 17 hours 6 mins to go from San Antonio, Texas to Alton, Illinois.

The flight distance (direct flight from San Antonio, TX to Alton, IL) is 807.57 mi.

920 mi = 1,481.08 kms