List of Airlines at (SAT) airport

Terminal A

Aeroméxico (Tel +1 800 237 6639)
Alaska Airlines (Tel +1 800 252 7522)
Allegiant Air (Tel +1 702 505 8888)
American Airlines (Tel +1 800 433 7300)
Delta Air Lines (Tel +1 800 221 1212)
Frontier Airlines (Tel +1 801 401 9000)
JetBlue (Tel +1 800 538 2583)
Southwest Airlines (Tel +1 800 435 9792)
Sun Country Airlines (Tel +1 657 905 2737)
VivaAerobus (Tel +1 866 359 8482)
Volaris (Tel +1 866 988 2527)

Terminal B

American Airlines (Tel +1 800 433 7300)
United Airlines (Tel +1 800 241 6522)

Many passengers do not know who to consult or make a claim to some doubts that arise before or after traveling, or any inconvenience that may occur. Listed below are topics that need to be consulted, coordinated or resolved directly with the airline.   Check in procedure   Documentation and visa required   Baggage weight limits, restricted and prohibited Items   Baggage and excess billing rates   Requirements for minors traveling alone or without parents   Special passengers needing prior coordination with the airline: people with disabilities, reduced mobility and pregnant women   Lost, delayed or damaged baggage reclaim   Possible flight's changes of date or cancellations   Confirmation of flight schedules (departures or arrivals)   Flight status report (for possible delays, cancellations, rescheduling)   In case your airline reschedules your flight, coordinate with the company for possible compensation, due to extra nights accomodation, food, flight connection lost, etc. Remember that it is always advisable to have a traveler's assistance insurance, in case the airline does not respond to any inconvenience that might happen (baggage lost or damaged, cancellation or flight delay, etc.)