Cheap flights from San Antonio (SAT)

South-Texas gateway 8 miles from the River Walk

San Antonio International sits about 8 miles north of downtown San Antonio in south-central Texas. It serves the seventh-largest US city as a focus airport for Southwest, with American, Delta, United, Alaska, and Frontier also operating. Routes lean domestic plus a handful of Mexico destinations including MEX and GDL. Long-haul connections route via DFW, IAH, or ATL.

Why search this airport on Flightmussy

Airlines flying from San Antonio (SAT)

Major carriers: Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, Alaska Airlines. Low-cost carriers: Southwest Airlines, Frontier Airlines, Spirit Airlines.

Popular destinations from San Antonio (SAT)

Frequently asked questions

What is the IATA code for San Antonio?
San Antonio International Airport's IATA code is SAT. The single-airport metro means there is no separate metro code to worry about. Flightmussy accepts either SAT or 'San Antonio' in the search box and will return the same results, with no signup needed to see fares.
Which airlines fly from San Antonio to Mexico?
Aeromexico and Viva Aerobus operate scheduled service from SAT to Mexico City and other Mexican destinations, with Southwest and American adding seasonal options. Flightmussy's 12-month fare heatmap compares all carriers' fares for SAT-MEX on a single screen so you can see which week is cheapest.
How far is San Antonio Airport from the River Walk?
SAT is about 8 miles (13 km) north of downtown San Antonio and the River Walk, a 15-20 minute taxi or rideshare ride outside rush hour. VIA Metropolitan Transit Route 5 connects the airport to downtown. Flightmussy lists arrival times so you can plan transfers efficiently.
When should I book flights from San Antonio?
For domestic SAT routes, booking 3-6 weeks ahead typically lands the lowest fares; for Mexico and longer-haul connections, 6-10 weeks is the sweet spot. Flightmussy's 12-month fare heatmap shows weekly price patterns so you can pick the cheapest departure window without subscribing to anything.

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