Gas prices in San Antonio, TX
Average today
$4.02/gal
Versus national
−0.33vs $4.35 US avg
below the national average
About gas prices in San Antonio, TX
San Antonio sits inside Texas's PADD 3 Gulf Coast refining region but has no in-city refining capacity. Pipelines from Corpus Christi to the southeast and Houston to the east keep supply stable and pricing close to Houston levels. Texas state gas tax (20 cents per gallon) is the only meaningful tax layer, and no special blending requirement applies in San Antonio. The metro typically posts pump prices within 5 to 10 cents of Houston averages and 10 to 20 cents below Dallas. Drivers in suburbs like Schertz, New Braunfels, and Boerne typically see slightly lower pricing than central San Antonio thanks to pipeline terminal proximity and Costco, Sam's Club, and H-E-B fuel stations across the metro. The Buc-ee's location in New Braunfels (north of San Antonio on I-35) draws aggressive low pricing on travel-route fill-ups, with another Buc-ee's east of the metro in Luling on I-10.