Cheap flights from Harlingen, TX to San Diego, CA
Flights starting at $128. Choose between United Airlines, Sun Country Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to San Diego
Cheapest one-way trip | $143 |
---|---|
Cheapest round-trip | $289 |
Average round-trip | $307 |
Most popular airline | United Airlines |
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Book your trip to arrive at San Diego International, or McClellan–Palomar. The most popular airlines for this route are United Airlines, Sun Country Airlines, Frontier Airlines, Spirit Airlines, and JetBlue Airways. Harlingen and San Diego have 60 direct flights per week.
Check-in for a flight from Harlingen to San Diego
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
United Airlines | UAL | UA | Yes | No |
Sun Country Airlines | SCX | SY | Yes | No |
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 |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in San Diego
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 18°C | 10°C |
February | 17°C | 10°C |
March | 18°C | 11°C |
April | 19°C | 12°C |
May | 20°C | 14°C |
June | 22°C | 16°C |
July | 24°C | 18°C |
August | 25°C | 19°C |
September | 25°C | 19°C |
October | 23°C | 16°C |
November | 21°C | 13°C |
December | 17°C | 11°C |
14 day forecast
Frequently asked questions
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