Cheap flights from San Diego, CA to San Antonio, TX
Flights starting at $230. Choose between United Airlines, Frontier Airlines, or Alaska Airlines to find the best price.
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Tips to know when travelling to San Antonio
Cheapest one-way trip | $230 |
---|---|
Cheapest round-trip | $292 |
Average round-trip | $549 |
Most popular airline | United Airlines |
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Travelers usually depart from San Diego International, or McClellan–Palomar when they travel from San Diego to San Antonio. The most popular airlines for this route are United Airlines, Frontier Airlines, and Alaska Airlines. San Diego and San Antonio have 40 direct flights per week.
Check-in for a flight from San Diego to San Antonio
Name | Carrier code | IATA Code | Passport needed during booking | |
---|---|---|---|---|
United Airlines | UAL | UA | Yes | |
Frontier Airlines | FFT | F9 | No | |
Alaska Airlines | ASA | AS | No |
Online check-in is not available for these airlines.
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 | 20°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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