Cheap flights from Idaho Falls, ID to London, United Kingdom
Flights starting at £271. Choose between Alaska Airlines, Allegiant Air, or Frontier Airlines to find the best price.
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Tips to know when travelling to London
Cheapest one-way trip | £405 |
---|---|
Cheapest round-trip | £803 |
Includes rare itinerary | |
Most popular airline | Alaska Airlines |
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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 Alaska Airlines, Allegiant Air, Frontier Airlines, British Airways, and easyJet. Idaho Falls and London have 173 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 Idaho Falls to London
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 |
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 |
British Airways | BAW | BA | No | 0 0 |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 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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