Cheap Flights from
San Antonio (SAT)
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San Antonio International (SAT) is Texas' fourth-busiest airport and quietly one of the best for Mexico deals. Southwest, American, Delta, United, Spirit, and three Mexican carriers all compete here. SAT's position as a Mexico gateway — and its overlap with Austin's flight market just 1.5 hours north — makes it a dual-hub opportunity for Bexar County travelers.
Typical vs. Error Fare Prices from San Antonio
Historical ranges based on observed deals. Error fares close within 2–6 hours — subscribe to get notified instantly.
| Destination | Typical Price | Error Fare Range |
|---|---|---|
| Cancún (CUN) | $200–$350 | $79–$149 |
| Mexico City (MEX) | $150–$250 | $79–$129 |
| Los Angeles (LAX) | $150–$250 | $79–$119 |
| New York (JFK) | $150–$250 | $79–$129 |
Pro Tips for Finding Cheap Flights from San Antonio
SAT is large enough for real competition but small enough that fewer deal hunters are watching — giving you more time to book before an error fare closes.
San Antonio to Mexico via Aeromexico, Volaris, and Vivaaerobus creates a competitive Mexico corridor with frequent flash windows.
Fiesta (April), summer weekends, and holiday periods push SAT fares sharply higher — error fares booked outside these windows are almost always honored.
Monitoring both SAT and AUS (1.5 hrs north) doubles your error fare coverage for South-Central Texas travelers.
Frequently Asked Questions — Cheap Flights from San Antonio
What airlines fly nonstop from San Antonio (SAT)?
San Antonio International is served by American, Southwest, Delta, United, Spirit, Frontier, Aeromexico, Volaris, and Vivaaerobus. With 12+ airlines competing — including three Mexican carriers — SAT sees frequent flash sales on Mexico routes and periodic domestic error fares.
What are the cheapest flights from San Antonio?
SAT's cheapest routes historically include Cancún ($79–149 during error fares), Mexico City ($79–129), Dallas ($49–79), and Los Angeles ($79–119). Error fares to the East and West Coast from San Antonio surface several times per year at $79–129.
Is it cheaper to fly from San Antonio or Austin?
It depends on the route and timing. AUS has more routes and more airlines, meaning higher error fare frequency. SAT sometimes offers cheaper Mexico-specific deals and has fewer deal hunters competing. Monitoring both airports — just 1.5 hours apart — doubles your chances of catching the best deal.
When is the cheapest time to fly from San Antonio?
January, February, and September are the cheapest months from SAT. Avoid Fiesta (April), spring break (March), and summer weekends. Mid-week departures are typically $30–60 cheaper than Friday/Sunday flights.