Cheap Flights from Reykjavik Keflavik to London

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Flight deals from Reykjavik Keflavik to London

Looking for a cheap last-minute deal or the best return flight from Reykjavik Keflavik to London? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Reykjavik Keflavik to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to London flights are currently cheapest in March.

Direct flights from Reykjavik Keflavik to London

Alternative Reykjavik Keflavik to London routes

Looking for the cheapest, fastest or easiest route from Reykjavik Keflavik to London? You could fly into the following airports instead.

Reykjavik to London: Flight information

The things to know before you go.
Cheapest flight foundR 534
Cheapest month to flyMarch
Average flight time3 hrs, 3 mins
Most popular airlineIcelandair
Average flights per week316

Finding cheap flights from Reykjavik Keflavik to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Reykjavik Keflavik to London is R 1,078. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 3 minutes is the average flight time from Reykjavik Keflavik to London.
Icelandair, Emirates and TAP Air Portugal fly direct from Reykjavik Keflavik to London.
As of January 2026, there are 158 flights per week flying from Reykjavik Keflavik to London.
The cheapest month to fly from Reykjavik Keflavik to London is usually March.
If you're flying from Reykjavik Keflavik Airport, the cheapest airport near London is London Luton – which is 44.6 km away from the centre of London. We've found flights into this airport from R 1,078.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to London on Thursday, 5 March 2026.
Yes – the average flight time is 3 hours and 3 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In January, the average temperature is usually around 4°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, easyJet offers the cheapest flight tickets to London.

Travelling from Keflavik International Airport (KEF) to London: what you need to know

  • The average length of a direct flight from Keflavik International Airport to London is 3 hours 15 minutes.

  • London's timezone is UTC+0, which is the same as Reykjavik (the location of Keflavik International Airport).

  • Keflavik International Airport (KEF) to London Heathrow Airport (LHR) is the most traveled route, with 21 weekly departures to choose from. If you prefer starting your day later, the last flight from KEF to LHR is with British Airways at 18:45. Go for the first departure operated by Icelandair at 07:35 if you want to get on your way earlier.

  • To avoid missing your KEF to London flight, leave plenty of time to navigate the airport and find your gate. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

  • If you're jetting off during a bank holiday or another peak period, give yourself more time. A good general rule is two hours before domestic flights and up to four hours before international departures. Check-in and security lines will be longer.

  • Begin your trip at KEF and fly straight to London without any layovers. When booking a direct Keflavik International Airport to London ticket, here's where you can touch down:

    • London Heathrow Airport (LHR)

    • London Gatwick Airport (LGW)

    • Stansted Airport (STN)

  • A range of airlines operate direct flights from Keflavik International Airport to London. They include:

  • Consider adding a stopover to potentially score a cheaper flight ticket from KEF to London. All you need to do is deselect 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these connection hubs:

    • Amsterdam Airport Schiphol (AMS)

    • Charles de Gaulle Airport (CDG)

    • Dublin Airport (DUB)

  • KEF is about 40 kilometres from central Reykjavik. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 50 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the trip time to be around 1 hour 15 minutes.

  • Catching an early flight from Keflavik International Airport to London? Avoid the last-minute rush to the airport (and get some extra shut-eye) by choosing one of these hotels near KEF:

  • Of the flights that depart from Keflavik International Airport, 66.96% touch down on time at their destination.

How to find the cheapest flights from Keflavik International Airport (KEF) to London

  • R 534 is currently the best price for a one-way Keflavik International Airport to London flight. Return flight tickets start at R 1,078. These fares may change depending on availability.

  • Get cheap flights from KEF to London by booking nine months ahead. Based on our research, that's the sweet spot for picking up a bargain.

  • The best month for picking up cheap Keflavik International Airport to London tickets is January. Use the 'Whole month' tool to compare prices, then select the dates that offer the biggest savings.

  • Snapping up a cheap flight from KEF to London couldn't be easier with Price Alerts. Simply create one of these automatic notifications and we'll let you know when a lower fare pops up.

  • Tailor your flights with filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Keflavik International Airport to London.

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) is around 31 kilometres from the centre of London. If you're grabbing a cab or a ride-share, the drive takes roughly 55 minutes.

  • When travelling on public transport, expect a journey time of about 1 hour.

  • Think about booking a hotel near LHR if you're coming in on a late flight from Keflavik International Airport to London. Choose one of these options and make arrival day easier:

  • Explore without limits with a London Heathrow Airport rental car. Pick up a set of wheels from Surprice, U-Save or Green Motion and venture far and wide through London and beyond.

  • Reserving your vehicle from London Heathrow Airport around one week ahead of your flight from KEF to London can help you get the best possible rate.

London Gatwick Airport (LGW)

  • London Gatwick Airport (LGW) is about 80 kilometres from central London. After your flight from Keflavik International Airport to London, it'll take you around 1 hour 20 minutes to get to the heart of the city in a ride-share or cab.

  • Public transport will get you there in around 30 minutes.

  • You'll find some great places to drop your things at near LGW. Kick back and get cosy after your KEF to London flight at one of these perfectly located options:

  • Forget about public transport schedules or slow-moving cab lines. Grab a London Gatwick Airport rental car and go in any direction that inspires you. Check out the availability and rates from Green Motion, U-Save and Drivalia.

  • Avoid last-minute price surges. Booking your ride three weeks ahead of your arrival at LGW will help you save.

Stansted Airport (STN)

  • Step off your flight from Keflavik International Airport to London and make your way to your hotel or start exploring right away. Central London is around 64 kilometres from Stansted Airport (STN) and usually takes 1 hour to drive there.

  • If you go by public transport, the journey will take you about 1 hour 25 minutes.

  • If you don't want to make your way into the centre, head for a hotel close to STN. Make yourself comfortable at one of these stays after your KEF to London flight:

  • Whether you're looking for an economy for a solo adventure or an SUV to fit everyone and their gear, you'll find the right Stansted Airport rental car for you. Check out the range of wheels available here from providers such as Green Motion, Drivalia and Europcar.

  • Around four weeks ahead of your flight from Keflavik International Airport to London is a good time to book your vehicle from STN. You're more likely to land a better deal or score some early bird savings.

Best time to go to London

  • Carefully consider your travel dates before securing your flight from Keflavik International Airport to London. The city comes alive in high season, but rates are often higher and attractions can be crowded. Go to London in low season if you like a more relaxed vibe.

  • Before booking a Keflavik International Airport to London flight ticket, think about the kind of weather forecast you're hoping for. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • Look for cheap tickets from KEF to London in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

More about London

  • Start your London trip off on the right foot by choosing the ideal place to stay. After booking your flight from Keflavik International Airport to London, explore our selection of accommodation options including:

  • All great adventures should include some sightseeing. The British Museum, Big Ben and Buckingham Palace are must-do's during your London adventure.

Explore more of United Kingdom

  • Birmingham is just one of the many places in United Kingdom waiting to be discovered once you've taken in the sights of London. Around 161 kilometres away to the north-west, well-known attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Bristol is another must-experience destination in United Kingdom and is around 177 kilometres west of London. No trip is complete without seeing Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.