It takes approximately three hours to drive from Houston, Texas, to San Antonio, Texas. The actual driving time between the cities can take longer depending on traffic and the route chosen.
There are two common driving routes from Houston to San Antonio. Travellers driving from Houston on Interstate 10 West drive 197.29 miles. This route takes an estimated 2 hours and 57 minutes to complete. Drivers wanting to take a different route can travel across state road U. S. - 90 Alt West. This route is 206.94 miles and takes an estimated 3 hours and 33 minutes to complete. Each route can take more or less time depending on driving speed, road construction and traffic.