Cheap flights from Portsmouth, MA to London, United Kingdom
Flights starting at £258. Choose between Allegiant Air, Spirit Airlines, or British Airways to find the best price.
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Book your trip to arrive at Gatwick, Heathrow, Luton, London Stansted, or London City. The most popular airlines for this route are Allegiant Air, Spirit Airlines, British Airways, easyJet, and Frontier Airlines. Portsmouth and London have 321 direct flights per week. When you arrive at London, consider visiting Avebury, Tate Modern, Roman Baths, Bath, Isle of Wight, Canterbury Cathedral, Natural History Museum, Tower of London, St. Paul's Cathedral, Portsea Island, Stonehenge, and British Museum.
Check-in for a flight from Portsmouth to London
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 |
British Airways | BAW | BA | No | 0 0 |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in London
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 2°C |
February | 8°C | 3°C |
March | 11°C | 4°C |
April | 14°C | 5°C |
May | 17°C | 8°C |
June | 20°C | 11°C |
July | 22°C | 14°C |
August | 22°C | 14°C |
September | 19°C | 12°C |
October | 15°C | 9°C |
November | 10°C | 6°C |
December | 8°C | 3°C |
14 day forecast
Frequently asked questions
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