Cheap flights from Allentown, PA to San Antonio, TX
Flights starting at $115. Choose between Allegiant Air, Spirit Airlines, or United Airlines to find the best price.
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Tips to know when travelling to San Antonio
Cheapest one-way trip | $183 |
---|---|
Cheapest round-trip | $507 |
Most popular airline | Allegiant Air |
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The most popular airlines for this route are Allegiant Air, Spirit Airlines, United Airlines, Frontier Airlines, and JetBlue Airways. Allentown and San Antonio have 107 direct flights per week.
Check-in for a flight from Allentown to San Antonio
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Allegiant Air | AAY | G4 | 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 |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in San Antonio
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 17°C | 7°C |
February | 19°C | 9°C |
March | 23°C | 12°C |
April | 27°C | 16°C |
May | 30°C | 19°C |
June | 34°C | 23°C |
July | 35°C | 24°C |
August | 36°C | 25°C |
September | 32°C | 22°C |
October | 28°C | 17°C |
November | 21°C | 12°C |
December | 18°C | 9°C |
14 day forecast
Frequently asked questions
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Flights from Allentown
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Flights to San Antonio
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Airports near Allentown
- John F. Kennedy International
- Newark Liberty International
- LaGuardia
- Philadelphia International
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- New York Stewart International Airport
- Ronald Reagan Washington National
- Long Island MacArthur
- Trenton–Mercer