San Antonio [1] is perhaps the best city in Texas for downtown lodging within walking distance from major tourist attractions. The River Walk is teeming with a wide range of accommodations, and although the city’s historic downtown hotels are somewhat more expensive, it’s worth the extra $30–40 for a memorable experience in a vibrant urban environment.
For those looking to save a few bucks, there are myriad affordable chain options about 20 minutes outside of downtown on Loop 410, especially on the north side of the city near the airport.
Links:
[1] http://www.moon.com/destinations/texas/san-antonio