San Antonio Airports Guide: Terminals, Transport, and Essential Information

San Antonio, Texas, is primarily served by one major international airport located conveniently close to the city’s downtown core. The region also features several smaller airports catering to general aviation, military operations, and specific regional travel. Understanding the airport layout is key for efficient travel to this historic city known for the Alamo, the River Walk, and its vibrant cultural scene.

This guide details the airports serving the San Antonio metropolitan area, including terminal layouts, ground transportation options, and practical tips for navigating your journey to the heart of South Texas.

San Antonio International Airport (SAT)

Overview: San Antonio International Airport is the primary commercial airport serving South Texas. Located just 8 miles (13 km) north of downtown San Antonio, it is one of the most conveniently located major airports in the United States relative to its city center. SAT is a focus city for Southwest Airlines and serves as an important gateway for both business and leisure travelers to the region.

Terminals:

• Terminal A: Houses gates A1-A15. Serves American Airlines, Alaska Airlines, Delta Air Lines, Frontier, JetBlue, Sun Country, and United Airlines.
• Terminal B: Houses gates B1-B18. Primarily serves Southwest Airlines, along with Aeroméxico, Allegiant Air, and Viva Aerobus.

The two terminals are connected post-security via a pedestrian walkway, making airside connections between terminals possible without re-clearing security. Pre-security, the terminals are separate buildings, but a free, frequent shuttle bus runs between them and the rental car facility.

Getting to and from SAT Airport:

• VIA Metropolitan Transit (Public Bus):
  VIA route 5 connects the airport (stop at Terminal A) to downtown San Antonio, including stops at the San Antonio Central Library and the downtown bus station. The ride takes about 30-40 minutes. Fares are very affordable ($1.30), but service frequency is limited (every 30-60 minutes). Not ideal with lots of luggage.
• Taxi / Ride-hailing (Uber, Lyft):
  Designated pickup areas are outside both terminals. This is the most popular and convenient option. A trip to downtown (River Walk, Alamo area) costs $25-35 and takes only 15-20 minutes in normal traffic.
• Rental Car:
  All major rental companies are consolidated in a single Rental Car Center. A free, 24/7 shuttle bus departs from outside both terminals every 5-10 minutes for the short ride to the facility.
• Hotel Shuttles:
  Many area hotels, particularly those near the airport and along the I-410 loop, offer complimentary shuttle service. Check with your hotel in advance.
• Driving & Parking:
  The airport is easily accessible via US-281. Parking options include Short-Term ($3/hr, $24/day), Long-Term ($3/hr, $17/day), and an Economy Lot ($3/hr, $10/day) with frequent shuttles to the terminals.

Best for: All commercial airline travelers, visitors to downtown San Antonio, business travelers, and tourists heading to the River Walk or nearby historic sites.

Stinson Municipal Airport (SSF)

Overview: Stinson Municipal Airport is a historic general aviation airport located about 6 miles (10 km) south of downtown San Antonio. It is the second-oldest continuously operating airport in the United States. It serves private, corporate, and recreational aviation, flight training, and air charter services. It does not handle scheduled commercial passenger flights.

Facilities:

• No commercial passenger terminal – Fixed Base Operators (FBOs) like Stinson Air Center handle services.
• Three runways capable of handling small to midsize business jets.
• Home to: The Texas Air Museum, flight schools, and private hangars.

Getting to and from SSF Airport:

• Private Transportation / Rental Car:
  Most visitors arrange private car service or pre-scheduled rental car pickup. Ride-hailing services (Uber/Lyft) are available but may require a short wait.
• Driving:
  Located off S. Presa St., near the Mission Reach of the San Antonio River Walk. The drive to downtown takes 15-25 minutes.

Best for: Private & corporate aviation, charter flights, flight training, and aviation history enthusiasts visiting the museum.

Lackland Air Force Base / Kelly Field Annex (SKF)

Overview: Part of Joint Base San Antonio, Lackland AFB and the adjacent Kelly Field are major military installations with significant air operations. Kelly Field has a long runway used for military cargo, training, and occasional civilian charter operations. These are not accessible to the general public for commercial travel.

Facilities:

• Military operations only.
• No civilian passenger services.

Which San Antonio Airport Should You Choose?

San Antonio International Airport (SAT) is the only choice for over 99% of travelers. It offers a comprehensive range of domestic and international flights (to Mexico), with a particularly strong presence of Southwest Airlines. Its proximity to downtown is a major advantage.

Stinson Municipal Airport (SSF) is only relevant for private jet charters, air taxi services, or corporate aviation. For the price of a first-class commercial ticket, you can sometimes book a semi-private charter from here to regional Texas destinations.

Lackland/Kelly Field (SKF) is for military personnel and operations only.

Alternative Commercial Option: Some travelers, particularly those seeking specific international destinations or lower fares, may consider Austin-Bergstrom International Airport (AUS), approximately 80 miles north (a 1.5-hour drive). However, SAT’s convenience usually outweighs the potential fare savings for San Antonio-bound travelers.

Airport Transfers and Regional Transportation

Transferring between San Antonio airports is rare for commercial travelers, as only SAT offers scheduled service. The primary focus is on transportation from SAT to key destinations.

To Downtown San Antonio (River Walk, Alamo, Convention Center):

• Ride-hailing/Taxi: The fastest and most convenient option (15-20 mins, $25-35).
• VIA Bus Route 5: The budget option (30-40 mins, $1.30).
• Rental Car: Easy 15-minute drive via US-281 South. Downtown parking can be expensive.

To the Historic Spanish Missions (including The Alamo):

• Car: The missions are spread out along the San Antonio River. A rental car or ride-hailing is best to visit multiple sites.
• Public Transit/Bike: The Alamo is downtown. Other missions are accessible via the Mission Reach hike & bike trail or VIA bus routes (requires planning).

To Hill Country Destinations (Fredericksburg, New Braunfels):

• Rental Car: Highly Recommended. The Texas Hill Country is best explored by car. Fredericksburg is a 1.5-hour drive west; New Braunfels (Schlitterbahn, Gruene) is a 45-minute drive north.
• Shuttle Services: Limited private shuttle services are available to some Hill Country towns and resorts; pre-booking is essential.

Inter-City Travel from SAT:
San Antonio is well-connected to other Texas cities by air, with frequent domestic flights. For ground transport to other cities:

• Greyhound Bus:
  Operates from the downtown station to cities across Texas and the US.
• Amtrak Train:
  The Sunset Limited and Texas Eagle services stop at San Antonio’s historic station, connecting to Los Angeles, Chicago, and New Orleans (schedules are infrequent).
• Car:
  Major interstates (I-10, I-35, I-37) connect SAT to Houston (3 hrs), Austin (1.5 hrs), Dallas (4.5 hrs), and Corpus Christi (2.5 hrs).

Practical Tips for San Antonio International (SAT):

• Size & Efficiency: SAT is a manageable, mid-sized airport. Security wait times are generally short compared to larger hubs.
• Local Flavor: The terminals feature local food options (like Whataburger, Mi Tierra Cafe) and Texas-themed shops.
• International Arrivals: All international flights (from Mexico) arrive in Terminal A. Customs and Border Protection (CBP) facilities are located there.
• Wi-Fi: Free Wi-Fi is available throughout the terminals.
• Rideshare Pickup: Follow clear signage to the designated rideshare pickup zones on the lower level (baggage claim) of each terminal.

Bottom line: Virtually all travelers will use San Antonio International Airport (SAT). Its combination of a convenient location, manageable size, and good transportation links makes it an exceptionally user-friendly airport. A ride-hailing service or taxi is the best value for the short trip downtown, while a rental car is recommended for exploring the broader Hill Country region.