Miles between San Antonio, TX and Union City, TN

There are
856 mi
from San Antonio, TX to Union City, TN

That's the driving distance. It would take 15 hours to go from San Antonio, Texas to Union City, Tennessee.

The flight distance (direct flight from San Antonio, TX to Union City, TN) is 729.66 mi.

856 mi = 1,378.25 kms