There are 73.59 miles from Austin to San Antonio in southwest direction and 79.29 miles (127.60 kilometers) by car, following the I-35 and US-290 route.
Austin and San Antonio are 1 hour 6 mins far apart, if you drive non-stop.
This is the fastest route from Austin, TX to San Antonio, TX. The halfway point is .
Austin, TX and San Antonio, TX are in the same time zone (CDT). Current time in both locations is 5:41 am.
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