Cheap flights from Allentown, PA to London, United Kingdom
Flights starting at $336. 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, Frontier Airlines, and Play. Allentown and London have 225 direct flights per week. When you arrive at London, consider visiting Roman Baths, Bath, British Museum, St. Paul's Cathedral, Isle of Wight, Portsea Island, Tower of London, Tate Modern, Canterbury Cathedral, Natural History Museum, Stonehenge, and Avebury.
Check-in for a flight from Allentown 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 |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Play | FPY | OG | No | 0 0 |
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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