San Antonio, TX
Loading prices
LiveUpdated Jul 5Gas prices near 78249
San Antonio, TX · TX average $3.32/gal
Stations near you
No results found
Try a different ZIP code
Keep exploring
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.
Nearby ZIP codes in San Antonio, TX
How to save more on gas in San Antonio
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. Fill up early in the week
Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.
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. 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. 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.
Related guides
Deep-dives on US gas-price topics relevant to this area.
Brand
Buc-ee's gas prices
29 travel-stop locations across Texas and 8 Southeast states.
Brand
H-E-B gas prices in Texas
Texas-only chain with fuel stations across Houston, San Antonio, Austin, and more.
Research
Diesel vs gasoline economics in 2026
Why diesel costs more than gas now. Refining yield and global demand.
Directory
US gas station brands directory
Reference for 39 major US gas station chains.
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.