Costco Gas Prices in San Antonio, TX
2 Costco fuel centers in San Antonio · 0 of 2 sell diesel
San Antonio Avg Regular
$3.289
per gallon
San Antonio Avg Premium
$3.879
per gallon
San Antonio Avg Diesel
Not sold at any station in San Antonio
San Antonio regular is$0.084belowthe Texas average ($3.373)
vs U.S. average$0.901below($4.190)
Premium runs$0.590above regular on average
San Antonio, Texas has 2 Costco fuel centers serving members in the area. Across San Antonio, regular gas averages $3.289 and premium runs about $0.590 higher at $3.879. That's about $0.084 below the Texas statewide average of $3.373. Within San Antonio, Costco W San Antonio posts the lowest regular at $3.279 and NW San Antonio the highest at $3.299 — a $0.020 spread worth checking before you fuel up. Across San Antonio, regular pump prices have held roughly flat over the past month. Premium has eased about $0.100 over the same period. None of the San Antonio Costco fuel centers currently sell diesel.