Cheap flights from Billings, MT to San Diego, CA
Flights starting at £79. Choose between Alaska Airlines, Frontier Airlines, or Allegiant Air 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 | £288 |
Most popular airline | Alaska 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 Alaska Airlines, Frontier Airlines, Allegiant Air, Spirit Airlines, and JetBlue Airways. Billings and San Diego have 102 direct flights per week.
Check-in for a flight from Billings to San Diego
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | 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 |
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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