San Antonio International Airport Statistics

San Antonio International Airport (SAT) is the primary airport serving the seventh-largest city in Texas. It functions as a major air gateway for South-Central Texas, connecting the region to destinations across the United States, Mexico and select international locations through multiple partner airlines.

San Antonio International Airport handles over 10 million passengers annually.

• SAT recorded 10.74 million passengers in 2025, a 3.2% decrease from the previous year.
• In 2019, SAT handled 10.36 million passengers before the pandemic.
• Passenger traffic dropped sharply in 2020 to 4.03 million (a 61% decline), then recovered to 7.46 million in 2021.
• Growth resumed in 2022 with 9.46 million passengers, followed by 10.68 million in 2023.
• The airport served 11.09 million passengers in 2024, surpassing its previous record and marking the first year it exceeded 11 million.

Domestic Market

• In 2025, Southwest Airlines led domestic operations with 36.9% market share, making it the dominant carrier for U.S. flights.
• American Airlines held 22.6%, representing the second-largest domestic market share.
• Delta Air Lines accounted for 16.1%, followed by United Airlines with 15.4%.
• Spirit Airlines held 4.8%, representing significant ultra-low-cost carrier presence.
• Frontier Airlines accounted for 2.3%, with other carriers representing 1.9% of domestic traffic.

International Market

• Viva Aerobus dominated international operations with 46.4% market share, making it the largest international carrier.
• Volaris held 33.7%, establishing Mexican low-cost carriers as the primary international operators.
• Aeromexico accounted for 15%, representing traditional carrier service to Mexico City.
• Southwest Airlines held 3% of international traffic with service to Mexico.
• Sun Country accounted for 1.9% with seasonal leisure flights.

As of 2025, San Antonio International Airport (SAT) featured nonstop service to 48 destinations throughout the U.S. and Mexico.

• International routes included 9 destinations in Mexico (Cancún, Mexico City, Guadalajara, Monterrey, León, Querétaro, Torreón, Morelia, and San Luis Potosí)
• There were 39 domestic routes connecting San Antonio to major coast-to-coast markets.
• Major domestic destinations include Dallas/Fort Worth, Houston, Las Vegas, Atlanta, Denver, Chicago, Phoenix, Los Angeles, Washington D.C., and Orlando.

San Antonio International Airport handles significant cargo operations, with approximately 240-280 million pounds of freight and mail per year.

• The airport handled 274.85 million pounds in 2025, representing a 15.7% increase from 237.58 million pounds in 2024.
• In 2019, cargo totaled 277.58 million pounds, before pandemic-era fluctuations.
• Cargo volumes decreased to 264.72 million pounds in 2020, but recovered to 277.58 million pounds in 2021, matching the 2019 level.
• Cargo declined to 268.17 million pounds in 2022 and further decreased to 241.71 million pounds in 2023 as operations normalized and e-commerce patterns shifted.

• February 2021: A historic winter storm brought snow, ice, and prolonged freezing temperatures to South-Central Texas. SAT’s runways and taxiways were closed for three full days, with limited operations on February 17 and a full reopening on February 19.¹
• December 2022: Southwest Airlines’ national holiday operational failure disrupted travel at SAT, with local reports citing numerous Southwest delays and cancellations. DOT later said the airline canceled 16,900 flights nationally during the meltdown.²
• January 2025: Rare winter weather during the week of January 20 caused significant delays and cancellations at SAT, and the airport briefly closed operations. Local reporting listed more than 80 delayed or canceled flights early on January 21.³