Gas in the San Antonio area is down 19¢ from last week, now averaging $3.74 a gallon. Filling a 15-gallon tank in the San Antonio area costs about $17 more than a year ago. It is $3.74 a gallon, $1.12 more than a year ago. Filling a 15-gallon tank costs about $17 more. It is $3.74 a gallon, down 19¢ from last week but still $1.12 above a year ago. Prices are AAA's daily averages for regular gas, last updated October 21.

Local Gas Prices San Antonio, TX Loading...