Miles between Round Rock, TX and Alton, IL

There are
824 mi
from Round Rock, TX to Alton, IL

That's the driving distance. It would take 15 hours 18 mins to go from Round Rock, Texas to Alton, Illinois.

The flight distance (direct flight from Round Rock, TX to Alton, IL) is 718.19 mi.

824 mi = 1,326.03 kms