Connecting at San Antonio airport

Connection time calculator, immigration and security, and how to move between terminals at SAT.

How connections work at SAT

At San Antonio airport, as at every airport in the United States, passengers arriving on an international flight must clear immigration (CBP) and customs, collect their checked bags and re-check them, and go through TSA security again before their connecting flight, even when both flights are on the same ticket.

The airport has 2 terminals or concourses (Terminal A, Terminal B). They are not connected after security: changing means going through security again.

Connecting passengers go through a transfer security screening.

Connection time calculator

Is your layover at SAT long enough? Pick your connection and get an estimate with the times of this airport.

Terminals / concourses: Terminal A, Terminal B

Getting between them: Walking landside between terminals (3 to 5 minutes); the two furthest gates are about 0.4 miles apart

Terminals A and B are in one building but are not connected airside: each concourse has its own checkpoint, so switching terminals means leaving the secure area and clearing security again. A Terminal C is under construction, planned to open in 2028.

  • Allow at least 60 minutes for a connection that switches terminal, and 90 to be relaxed.
  • Security checkpoints open at 3:30 am and close about 30 minutes before the last departure.

Estimate based on typical times at this airport, not your airline's official minimum connection time. Immigration and security lines change with the time of day and season. On a single ticket, the airline must rebook you if you miss the connection; on separate tickets, it does not.

Sources: layoverindex.com.

Times are estimates: always check with your airline.

TSA security wait times

Estimated wait at the security checkpoints of SAT right now. When live data is not available, it shows historical averages.

More about SAT

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