LON - KEF

$180 Find Cheap Flights from London to Reykjavik - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Keflavik Intl departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$282
Typical prices: $188-$281
Scandinavian Airlines
Wed 11/11Mon 11/16
LHR - KEF • 1 stop
Cheapest non-stop
$283
Typical prices: $108-$162
easyJet
Sat 11/7Thu 11/12
LTN - KEF • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
On Icelandair, bring snacks; in-flight food may require pre-ordering.
At Reykjavik Keflavik, pricey restaurants make packing food a smart choice.
Expert advice
Expert advice
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Expert advice
Expert advice
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Top airlines
Cheapest • from $282 (round-trip)
Best reviews • 7.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with British Airways, Icelandair and easyJet. Average duration is 3h 10m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest • 42% average savings
Most popular
Insights
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Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 53% price drop
Most popular
Good to know
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We hope you love your trip to Keflavik Intl!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from London to Keflavik Intl (LON-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Keflavik Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Keflavik Intl

Wed, Nov 11 - Mon, Nov 16
Scandinavian Airlines Logo
5:30 pm - 10:50 am
LHR
-
KEF
17h 20m
1 stop
Scandinavian Airlines Logo
6:05 pm - 4:00 pm
KEF
-
LHR
21h 55m
1 stop
$282Scandinavian Airlines
Wed, Sep 23 - Tue, Sep 29
Icelandair Logo
3:40 pm - 5:55 pm
LGW
-
KEF
3h 15mnonstop
Icelandair Logo
10:30 am - 2:40 pm
KEF
-
LGW
3h 10mnonstop
$283Icelandair
Sat, Nov 7 - Thu, Nov 12
easyJet Logo
7:00 am - 10:15 am
LTN
-
KEF
3h 15mnonstop
easyJet Logo
10:00 am - 1:00 pm
KEF
-
LTN
3h 00mnonstop
$283easyJet
Wed, Oct 28 - Sat, Nov 7
Scandinavian Airlines Logo
3:35 pm - 10:50 am
LHR
-
KEF
19h 15m
1 stop
Scandinavian Airlines Logo
5:05 pm - 9:35 am
KEF
-
LHR
16h 30m
1 stop
$283Scandinavian Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
9:30 pm - 9:55 am
LGW
-
KEF
13h 25m
1 stop
Multiple Airlines Logo
8:05 pm - 8:40 am
KEF
-
LGW
11h 35m
1 stop
$284Multiple Airlines
Thu, Oct 1 - Sun, Oct 4
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$287Icelandair
Sun, Oct 4 - Wed, Oct 7
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
4:10 pm - 8:20 pm
KEF
-
LHR
3h 10mnonstop
$289Icelandair
Mon, Nov 9 - Sun, Nov 15
British Airways Logo
7:35 am - 10:55 am
LHR
-
KEF
3h 20mnonstop
British Airways Logo
5:55 pm - 8:55 pm
KEF
-
LHR
3h 00mnonstop
$291British Airways
Fri, Oct 30 - Sat, Nov 7
British Airways Logo
7:35 am - 10:55 am
LHR
-
KEF
3h 20mnonstop
British Airways Logo
4:05 pm - 7:05 pm
KEF
-
LHR
3h 00mnonstop
$292British Airways
Tue, Nov 3 - Wed, Nov 4
British Airways Logo
7:35 am - 10:55 am
LHR
-
KEF
3h 20mnonstop
British Airways Logo
11:50 am - 3:00 pm
KEF
-
LHR
3h 10mnonstop
$296British Airways
Booking Insights

KAYAK's insights & trends for London to Keflavik Intl flights

Get data-powered insights and trends into flights from London to Keflavik Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London to Reykjavik Keflavik Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London to Reykjavik Keflavik Intl Airport departing in November.

Flight prices are below average for this route right now.

Flights to Reykjavik Keflavik Intl Airport from London usually cost between $341 and $538 in November.
The lowest price found in the past 5 days was $282 on Scandinavian Airlines (Nov 11-Nov 16).

What is the cheapest London to Reykjavik Keflavik Intl Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Reykjavik Keflavik Intl Airport costs $170 on the route between London Luton Airport (LTN) and Reykjavik Keflavik Intl Airport (KEF). Over the past month, this route was, on average, 42% cheaper than other London-Reykjavik Keflavik Intl Airport routes. The most popular route is between London Heathrow Airport (LHR) and Reykjavik Keflavik Intl Airport (KEF).

What’s the cheapest day of the week to fly from London to Reykjavik?

The average price of all round-trip flights from London to Reykjavik Keflavik Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Reykjavik on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from London to Reykjavik. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays for the best deals.

What is the cheapest month to fly from London to Reykjavik Keflavik Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Reykjavik Keflavik Intl Airport is January, where tickets cost $135 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $456 and $453 respectively.

How far in advance should I book a flight from London to Reykjavik Keflavik Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Reykjavik Keflavik Intl Airport, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from London to Keflavik Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on PLAY and Icelandair

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low season

April

Cheapest flight

$180
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 55% lower on average.
Flight from London Heathrow Airport to Reykjavik

When to book flights from London to Keflavik Intl

Are your dates flexible? Find out the best times to travel from London to Keflavik Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to Keflavik Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from London to Keflavik Intl 
Verified travelerFlew with Icelandair
LGW
-
KEF
Feb 2025
Pack snacks. Expensive restaurants and no in flight food unless ordered.
JonFlew with Icelandair
LGW
-
KEF
Jun 2024
Understanding the transit system. Something we had not done. So we took a cab that sat in a lot of traffic and cost us a lot of time and money when we could have taken the tube for very little cost and half time time

FAQs for booking London to Reykjavik flights

  • Are the departure and arrival airports a hub for any airlines?

    Reykjavik Keflavik International Airport is a primary hub for Eagle Air and a domestic hub for Icelandair. It's the largest and main hub for international transportation in Iceland, whereas London Heathrow Airport is the main hub for British Airways and a center for Virgin Atlantic.

  • Does London Heathrow Airport have a play area for kids?

    Yes, this airport has several quiet spaces that are safe for kids to play in. One play area is located at Terminal 5 near Gate A7. It's ideal for kids younger than nine years and opens from 6 am to 9 pm every day. Another play area is located at Terminal 4 near Gates 1 to 6. Also, it's open from 6 am to 9 pm daily. Your kids can also sit in the kids' seating area at Terminal 2 to enjoy the spectacular view of the airport.

  • How do I get to London Heathrow Airport from downtown London?

    The fastest way to get to the airport is using a train that runs every 15min. However, if you need cheaper transport, you can use the London Underground trains that drop you off at the airport.

  • Which is the most sustainable flight from London to Reykjavik?

    American Airlines is the most sustainable airline when flying from London to Reykjavik because it practices sustainable aviation. It aims to ensure zero carbon emissions by 2050. This airline uses renewable biofuel that reduces the environmental impact on the environment.

  • What is the cheapest flight from London to Reykjavik Keflavik Intl Airport?

    In the last 5 days, the lowest price for a flight from London to Reykjavik Keflavik Intl Airport was $180 for a one-way ticket and $282 for a round-trip.

  • Do I need a passport to fly between London and Reykjavik?

    Yes

  • Which airports will I be using when flying from London to Reykjavik?

    When flying out of London you will be using one of these airports: London Gatwick or London Heathrow. You will be landing at Reykjavik Keflavik Intl.

  • Which aircraft models fly most regularly from London to Reykjavik?

    The Boeing 777 is the aircraft model that flies most regularly on the London to Reykjavik flight route.

  • Which airline alliances offer flights from London to Reykjavik?

    oneworld is the only airline alliance operating flights between London and Reykjavik.

  • On which days can I fly direct from London to Reykjavik?

    There are nonstop flights from London to Reykjavik on a daily basis.

  • Which is the best airline for flights from London to Reykjavik, Icelandair or easyJet?

    The two airlines most popular with KAYAK users for flights from London to Reykjavik are Icelandair and easyJet. With an average price for the route of $357 and an overall rating of 7.0, Icelandair is the most popular choice. easyJet is also a great choice for the route, with an average price of $209 and an overall rating of 6.9.

  • How does KAYAK find such low prices on flights from London to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $275 or less one-way and $488 or less round-trip.
  • You can access London Heathrow Airport (LHR) lounges despite the class you fly in. Airport lounges are located in all terminals, including Terminal 2, Terminal 3, Terminal 4, and Terminal 5. These lounges have family-friendly facilities and a wide selection of meals and drinks. In addition, premium lounges such as Plaza Premium Lounge offer spa services.
  • Reykjavik Keflavik International Airport (KEF) serves several nearby cities. Some of these cities include Hafnir, Vogar, Njardivik, Mosfellsbaer, Alftanes, Kopavogur, Gardabaer, Hafnarfjordur, Sardgerdi and Seltjarnes.
  • If you need easy luggage handling, cheap flights from London to Reykjavik are American Airlines or Icelandair. This is because Icelandair flies from Terminal 2 and American Airlines flies from Terminal 3. The Cargo Terminal is connected to Terminal 2 and Terminal 3 by the Heathrow cargo tunnel, making it easy to handle your luggage.
  • Though there are several airports in London, including London City Airport (LCY) and London Gatwick Airport (LGW), you should choose London Heathrow Airport. Apart from modern facilities, including the VIP Terminal, it has beautiful water fountains. All 107 water fountains are near terminal 1 to terminal 5, making it an attractive airport.
  • Reykjavik Keflavik International Airport offers facilities for specially-abled travelers. The toilets and lifts are wheelchair accessible. Also, those with hidden disabilities are given the option of wearing a sunflower lanyard at the airport. On the other hand, London Heathrow Airport has a reserved seating area with induction loops for those with disabilities. In addition, the airlines assist those with reduced mobility free of charge.

Prefer to fly direct from London to Reykjavik?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Reykjavik Keflavik Intl.
Find which airlines fly direct from London to Reykjavik Keflavik Intl Airport, which days they fly and book direct flights.

Direct departures

London to Reykjavik Keflavik Intl

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Thursday

British Airways,Icelandair

British Airways,Icelandair

Friday

British Airways,Icelandair

British Airways,Icelandair

Saturday

British Airways,Icelandair

British Airways,Icelandair

Sunday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

See more direct flights

Direct returns

Reykjavik Keflavik Intl to London

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Thursday

British Airways,Icelandair

British Airways,Icelandair

Friday

British Airways,Icelandair

British Airways,Icelandair

Saturday

British Airways,Icelandair

British Airways,Icelandair

Sunday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

See more direct flights

Reviews of the top 3 airlines serving from London to Keflavik Intl

 
See real verified KAYAK customer reviews for airlines flying from London to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Keflavik Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IcelandairOverall score based on 719 reviews
7.1Boarding
6.9Comfort
6.1Food
8.0Crew
6.8Entertainment
Airline reviews

Just be careful, it is not business class, not flat seats, just as in comfort plus.

6.0 GoodMarianna, Aug 2026
OSL - KEF
Read more Icelandair reviews

Just be careful, it is not business class, not flat seats, just as in comfort plus.

I DO NOT recommend Iceland air...missed connecting flight.....paid for isle seat upgrade for health reasons...had to do that over....baggage left in the rain so clothes got soaked other items ruined....called customer * dont care* service

1. No food on a 8 hr flight is a travesty! The fare was not that low. 2. The entertainment was pretty bad and you had to buy headphones!!! 3. Only 2 toilets for the whole Economy section!!

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Well! They got me as far as Iceland, let me wait around at the airport since my next flight had either left or canceled, finally gave me my luggage, and sent me to wait quite some time with seven other people for a ride to a hotel. At the hotel we got a chef's salad, a nice room for the night which unfortunately had feather pillows and duvet (allergies), a really great and spectacular buffet for breakfast (small but stunning), taxis back to the airport for the 9:30 Delta flight back to Minneapolis. The Delta flight has free food and liquor included which Icelandair does not. All in all, it falls far short of my worst ever United flight to SGN. Icelandair did change my reservation after my roommate tested positive for COVID and we canceled our plans to travel around Iceland, but the charges were fairly hefty. I had trouble contact Kayak's agents to discuss changing my reservations and finally contacted Icelandair who changed them. (I used their contact form and put in several requests for call backs.) Of course, they called just after I made the change with Icelandair.

did internet check in but still had to get checked in at the counter and this was not the first time. Bummer!

Paying $75 for my bag is disgusting. Got off ground late so I missed my connections. Kept us waiting for passengers in the cold. Will not use them again.

There was no useful information given regarding the flight back to the UK from Tenerife. This despite the week publicised problems around the EES system and the delays caused to boarding. This aspect of the customer experience could have been much better.

Fast boarding, smooth takeoff and landing. plenty of space in seats. Excellent air-conditioning on a hot day. Perfect experience

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

Not enough food for a 4 hour trip…Lack of entertainment and with no WIfi accessibility I didn’t figure it out how to access free WiFi

Not good because in this cancelled and then rebooked flight BA put me and my husband in both middle seats when we were originally seated together in original flight and i was in aisle. I hate sitting in the middle. BA food needs to be better. It was just ok. Thanks though to screw and everyone one for safe flight

Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

The crew made it a great flight. They were friendly and attentive. They made me want to fly British Airways again.

BA has not been handling priority luggage with any special priority. This time our luggage was distinctly very slow to arrive, well after the first half of items to arrive. Business class flights cost a lot and it would be nice to have that reflected in the speed of baggage handling! (I note that this has worsened in our long experience of BA.) On a different note, we spent 2.5 hours on the plane after landing because of an airport mishap at Boston Logan. The pilot provided reasonably frequent update but more could have been done to ensure passenger comfort, such as more beverage and maybe snack services.

I purchased premier economy seats but I was seated one row off and was sitting in economy my bottle of water and cookie did not compare to the menus handed OP it in premier.

I understand and don't want food on a short trip, but tea and coffe (at least 1 cup) should be free. Nevertheless there was water available and the crew was nice.

Food is horrible. Flight was good and the staff were mostly men.

Delayed suitcase - terrible service to get my suitcase next day, I was informed it would arrive today in the afternoon (Jun/28). Now, I was informed I may or may not receive it until 3 am (Jun/29).

Everything you need to know for your flight from London to Keflavik Intl

Information on your arrival and departure airports