Cheap flights from Ontario, CA to Portsmouth, MA
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Tips to know when travelling to Portsmouth
Cheapest nonstop round-trip | $431 |
---|---|
Most popular airline | Allegiant Air |
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Travelers usually depart from Ontario International, or Montclair (Ontario) when they travel from Ontario to Portsmouth. The most popular airlines for this route are Allegiant Air, Frontier Airlines, Spirit Airlines, Alaska Airlines, and Sun Country Airlines. Ontario and Portsmouth have 73 direct flights per week.
Check-in for a flight from Ontario to Portsmouth
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 |
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 |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Sun Country Airlines | SCX | SY | Yes | No |
Weather in Portsmouth
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 0°C | -6°C |
February | 1°C | -5°C |
March | 5°C | -1°C |
April | 11°C | 3°C |
May | 17°C | 8°C |
June | 21°C | 13°C |
July | 25°C | 17°C |
August | 25°C | 17°C |
September | 21°C | 13°C |
October | 15°C | 8°C |
November | 9°C | 2°C |
December | 3°C | -1°C |
14 day forecast
Frequently asked questions
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