LON - KEF

$51 Find Cheap Flights from London to Reykjavik

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 11/4. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik Keflavik Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Reykjavik, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

Cheap Flights from London to Reykjavik (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 Reykjavik 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

Tue, Nov 25 - Thu, Nov 27
easyJet Logo
7:00 am - 10:15 amLTN-KEF
3h 15mnonstop
easyJet Logo
10:25 am - 1:20 pmKEF-LTN
2h 55mnonstop
$87easyJet
Find Deal
Tue, Nov 25 - Thu, Nov 27
easyJet Logo
7:00 am - 10:15 amLTN-KEF
3h 15mnonstop
easyJet Logo
10:25 am - 1:20 pmKEF-LTN
2h 55mnonstop
$88easyJet
Find Deal
Tue, Jan 6 - Sat, Jan 10
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$191Icelandair
Find Deal
Sun, Dec 7 - Thu, Dec 11
 Logo
1:40 pm - 5:05 pmLHR-KEF
3h 25mnonstop
 Logo
11:30 am - 6:50 pmKEF-LHR
7h 20m1 stop
Tue, Dec 9 - Fri, Dec 12
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$197Icelandair
Find Deal
Sun, Nov 30 - Sat, Dec 6
British Airways Logo
7:20 am - 10:40 amLHR-KEF
3h 20mnonstop
British Airways Logo
11:55 am - 3:05 pmKEF-LHR
3h 10mnonstop
$201British Airways
Find Deal
Sun, Dec 7 - Wed, Dec 10
 Logo
1:40 pm - 5:05 pmLHR-KEF
3h 25mnonstop
 Logo
11:30 am - 5:40 pmKEF-LHR
6h 10m1 stop
Mon, Nov 24 - Fri, Nov 28
British Airways Logo
7:35 am - 10:55 amLHR-KEF
3h 20mnonstop
British Airways Logo
6:10 pm - 9:10 pmKEF-LHR
3h 00mnonstop
$215British Airways
Find Deal
Wed, Nov 5 - Mon, Nov 10
Scandinavian Airlines Logo
7:50 pm - 10:45 amLHR-KEF
14h 55m1 stop
Scandinavian Airlines Logo
1:00 pm - 9:35 pmKEF-LHR
8h 35m1 stop
$216Scandinavian Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
Scandinavian Airlines Logo
7:50 pm - 10:45 amLHR-KEF
14h 55m1 stop
Scandinavian Airlines Logo
1:00 pm - 9:35 pmKEF-LHR
8h 35m1 stop
$217Scandinavian Airlines
Find Deal
Expert advice

Expert advice for your flight from London to Keflavik Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
PLAY

PLAY offers priority boarding with Basic Plus, Value, and Flex bundles for added convenience.


PLAY's extra legroom seats offer up to 10 additional inches of pitch for more comfort.

Read more about PLAYby Stefanie Waldek
Icelandair

Icelandair's Saga Premium includes lounge access, meals, and free Wi-Fi for two devices.


Economy Flex on Icelandair offers waived change fees and possible refunds for flexibility.

Read more about Icelandairby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on PLAY and Icelandair

Stefanie Waldek

Stefanie Waldek

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.

Read more
Useful Info

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.

Find cheap flights to Reykjavik
Find cheap flights to Reykjavik

Planning a trip from London to Keflavik Intl? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Reykjavik Keflavik Intl Airport.

Our data shows that the cheapest route for a return flight from London to Reykjavik Keflavik Intl Airport cost $160 and was between London Stansted Airport (STN) and Reykjavik Keflavik Intl Airport (KEF). On average, the best prices are found if you fly from London Luton Airport (LTN) to Reykjavik Keflavik Intl Airport (KEF). The average price for a return flight for this route is $160.

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 Thursday, 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 Tuesday and avoiding Mondays 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 $79 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $340 and $313 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJune
High seasonJanuary
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 61% lower on average.

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 IcelandairLGW-KEFFeb 2025
Pack snacks. Expensive restaurants and no in flight food unless ordered.
JonFlew with IcelandairLGW-KEFJun 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 3 days, the lowest price for a flight from London to Reykjavik Keflavik Intl Airport was $51 for a one-way ticket and $87 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, and Star Alliance are the airline alliances operating flights between London and Reykjavik, with oneworld being the most commonly used for this route.

  • 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 $318 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 $127 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 $251 or less one-way and $328 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, PLAY

British Airways, Icelandair, +1 more

Tuesday

Icelandair, PLAY

Icelandair, PLAY

Wednesday

British Airways, Icelandair, PLAY, +1 more

British Airways, Icelandair, +2 more

Thursday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Friday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Saturday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Sunday

British Airways, Icelandair, PLAY, +1 more

British Airways, Icelandair, +2 more

See more direct flights

Direct returns

Reykjavik Keflavik Intl to London

Monday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Tuesday

Icelandair, PLAY

Icelandair, PLAY

Wednesday

British Airways, Icelandair, PLAY, +1 more

British Airways, Icelandair, +2 more

Thursday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Friday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Saturday

British Airways, Icelandair, PLAY

British Airways, Icelandair, +1 more

Sunday

British Airways, Icelandair, PLAY, +1 more

British Airways, Icelandair, +2 more

See more direct flights

Reviews of the top 4 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 515 reviews
6.2Food
7.0Entertainment
8.0Crew
6.9Comfort
7.1Boarding
Airline reviews

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

8.0 ExcellentGoutam, Jul 2025DTW - KEF
Read more Icelandair reviews

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

I had an exit row and so was Comfortable on the long flight.

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.

For a no frills flight this was surprising comfortable. The crew were helpful and nice. The flight was smooth and there were no delays or issues which I haven't had on a flight in a long time. I would definitely fly with them again.

The flight was canceled by play less than 24 hours prior to the trip, and I was unable to re-book. Have not received a refund for the trip despite filling out the appropriate form.

Was was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. It has been three weeks without a refund or an answer

Have not recieved full refund for my flight, which was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. This request was completed three weeks ago an answer or refund.

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Boarding and crew was great. Flight was cold, need layers. Deplaning was hard. We had to take stairs off the plane and I was separated from my travel companion because we were not seated together and they would not let him wait for me to get off so we were forced onto different shuttles.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

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.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

Terrible, We experienced massive delays and then couldn’t book a hotel through the link provided, nothing was available. We then went to the airport the next day and experienced further delays, almost no communication was given. We had dinner at lunchtime and breakfast at midnight. We then landed in Jhb at 1am and had to book another hotel as our flight to durban was at 8am. The experience was painful and very expensive.

Flight was cancelled at the last minute with no explanation. No viable alternative offered and zero customer service support. Totally useless.

Experience with British Airways was hopeless and the response from ground staff after flight cancellation was hopeless

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

this was a good experience from on time boarding and take off to early arrival. Comfortable seats became empty seat next to me.

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.