United States · San Antonio
San Antonio International Airport (SAT) Online Check-in
San Antonio's main airport, gateway to historic city + Texas Hill Country. Two terminals (A + B). Heavy domestic + Mexican connections.
Now at San Antonio International Airport
- Security wait (today, avg) 18 min
- Disruption No reported disruption
- Weather impact Clear, 14 °C
Quick information
Airlines we cover at San Antonio International Airport
San Antonio International Airport hosts about 15 airlines in total. We have terminal-specific check-in pages for the 0 listed below. Pick yours to see counters, bag-drop, and online check-in details.
No terminal-specific check-in pages for this airport yet. Browse the full airline directory for general check-in info.
How to check in for a flight from San Antonio International Airport
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Check in online before you leave home
Most airlines open online check-in 24–48 hours before departure. It saves time at the airport and avoids airport-counter fees on low-cost carriers.
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Arrive at the right terminal
SAT has 2 terminal(s). Check your airline's terminal in the table above before you set off.
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Drop off checked baggage
Counters typically open 2 hours before departure and close 40 minutes before. Use self-service bag-drop kiosks to save time.
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Pass security
Liquids must be in a single transparent bag, max 100 ml each. Laptops and large electronics out of bags. Submit your security wait time below to help others.
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Reach your gate on time
Most airlines close the gate 20 minutes before departure. Allow 5–15 minutes to walk from security to the gate.
Tips for San Antonio International Airport
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Mexican community routes
SAT serves heavy Mexican-American community + business. Aeroméxico flights to MEX, GDL, MTY common.
Popular destinations from San Antonio International Airport
Frequently asked questions
Is SAT or AUS better for Texas Hill Country?
SAT is more central. SAT for Hill Country south + Mexico. AUS for Hill Country north + tech corridor.
Official sources
The check-in details on this page are sourced from each airline's website. For terminal layout, opening hours, and ground-side services, see the San Antonio International Airport official site below.
- Wikipedia: San Antonio International Airport — Editorial overview, history, statistics.
- FlightRadar24: SAT live data — Live flight arrivals, departures, and delays.
- travel.state.gov — Up-to-date entry requirements and security guidance for United States.