Cheap flights from Portsmouth, MA to San Jose, CA
Flights starting at $209. Choose between Allegiant Air, Spirit Airlines, or Alaska Airlines to find the best price.
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Tips to know when travelling to San Jose
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The most popular airlines for this route are Allegiant Air, Spirit Airlines, Alaska Airlines, Frontier Airlines, and Sun Country Airlines. Portsmouth and San Jose have 59 direct flights per week. When you arrive at San Jose, consider visiting Golden Gate Bridge, Big Sur, and Alcatraz.
Check-in for a flight from Portsmouth to San Jose
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 |
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 |
Sun Country Airlines | SCX | SY | Yes | No |
Weather in San Jose
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 15°C | 6°C |
February | 16°C | 6°C |
March | 17°C | 7°C |
April | 20°C | 8°C |
May | 22°C | 10°C |
June | 26°C | 13°C |
July | 29°C | 15°C |
August | 29°C | 15°C |
September | 28°C | 15°C |
October | 24°C | 13°C |
November | 18°C | 9°C |
December | 14°C | 7°C |
14 day forecast
Frequently asked questions
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