There are 1,052.78 miles from Chicago to San Antonio in southwest direction and 1,202 miles (1,934.43 kilometers) by car, following the I-44 W route.
Chicago and San Antonio are 18 hours 42 mins far apart, if you drive non-stop .
This is the fastest route from Chicago, IL to San Antonio, TX. The halfway point is Saginaw, MO.
Chicago, IL and San Antonio, TX are in the same time zone (CDT). Current time in both locations is 12:12 am.
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