Cheap flights from Key West, FL to San Diego, CA
Choose between Frontier Airlines, Silver Airways, or Allegiant Air to find the best price
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Tips to know when travelling to San Diego
Most popular airline | Frontier 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 Frontier Airlines, Silver Airways, Allegiant Air, Spirit Airlines, and JetBlue Airways. Key West and San Diego have 282 direct flights per week.
Check-in for a flight from Key West to San Diego
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 hours before flight |
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 |
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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