Miles between San Antonio, TX and Decatur, IL

There are
1,021 mi
from San Antonio, TX to Decatur, IL

That's the driving distance. It would take 19 hours 3 mins to go from San Antonio, Texas to Decatur, Illinois.

The flight distance (direct flight from San Antonio, TX to Decatur, IL) is 899.91 mi.

1,021 mi = 1.61 kms