San Antonio, TX

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LiveUpdated Jul 5

Gas prices near 78249

San Antonio, TX · TX average $3.32/gal

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Finding cheap gas in San Antonio (78249)

UTSA anchors this far Northwest Side ZIP, and the university's footprint shapes everything from traffic to the commercial mix along I-10 and Loop 1604. With a large student population layered over fast-growing residential development, demand here runs high and the stations near campus and the major intersections stay busy.

Retail clusters around the UTSA Boulevard area and the I-10 and 1604 corridors, near the La Cantera and Six Flags Fiesta Texas draws. Grocery and big-box fuel in those centers tends to anchor the low end, while the convenience stations closest to campus can run a bit higher off student traffic.

Plenty of drivers here jump on I-10 toward downtown or take 1604 around the loop, and the freeway-entrance pumps price for that flow. Filling up at a grocery-anchored center before reaching the on-ramp is usually the cheaper move. The student schedule shapes demand too, with traffic spiking around class hours, so the stations nearest campus lean on convenience while the larger retail pumps a bit farther out tend to carry the lower prices.

How to save more on gas in San Antonio

  1. 1. Use warehouse clubs

    Costco and Sam’s Club typically price 15-25 cents per gallon below nearby stations. Membership pays for itself within a few fill-ups.

  2. 2. Fill up early in the week

    Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.

  3. 3. Keep tires properly inflated

    Properly inflated tires improve fuel economy by up to 3 percent at current prices. Check pressure once a month.

  4. 4. Check back tomorrow

    Prices can shift 10-20 cents overnight during volatile markets. A quick check before you leave home avoids paying yesterday’s spike.

  5. 5. Pay cash at split-pricing stations

    Stations with cash and credit split pricing typically save an average of 10 cents per gallon when you pay cash.

About gas prices in Texas

Texas runs one of the lowest gas tax rates in the country at 20 cents per gallon, and its location next to the Gulf Coast refining belt (which produces roughly 40 percent of US refined fuel) keeps prices consistently below the national average. Buc-ee's, Costco, and Sam's Club draw the cheapest pump prices across Houston, Dallas, Austin, and San Antonio metros, while HEB Fuel and Kroger Fuel are competitive grocery options. Watch for noticeable Friday afternoon hikes in Houston, Dallas, and Austin during peak summer driving season, when local demand briefly outpaces supply.