Cheap flights from Philadelphia, PA
to San Antonio, TX
Flights starting at $84. Choose between American Airlines, Delta Air Lines, or Frontier Airlines to find the best price.

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Check-in for a flight from Philadelphia to San Antonio
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
American Airlines | AAL | AA | Yes | No |
Delta Air Lines | DAL | DL | Yes | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
United States COVID-19 travel restrictions

Most travelers from Philadelphia, PHL can enter San Antonio, SAT.
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Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.
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Airports near Philadelphia
- John F. Kennedy International
- Newark Liberty International
- Philadelphia International
- Baltimore–Washington International
- Washington Dulles International
- LaGuardia
- New York Stewart International Airport
- Ronald Reagan Washington National
- Long Island MacArthur
- Harrisburg International