LON - KEF

$101 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 5/8. 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

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
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Everything you should know

Cheapest round-trip
$168
Typical prices: $361-$252
easyJet
Thu 4/23Mon 4/27
LGW - KEF • Non-stop
Cheapest one-way
$101
Typical prices: $206-$325
easyJet
Fri 5/8
LGW - KEF • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Icelandair's Economy Flex allows waived change fees.
Bring snacks; Icelandair's in-flight food is limited.
Expert advice
Expert advice
+1
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Expert advice
Expert advice
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Top airlines
Cheapest • from $168 (round-trip)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
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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 • 37% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 57% price drop
Most popular
Good to know
Good to know
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We hope you love your trip to Keflavik Intl!
Flight Deals
Booking Insights
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

Thu, Apr 23 - Mon, Apr 27
easyJet Logo
2:05 pm - 4:25 pm
LGW
-
KEF
3h 20mnonstop
easyJet Logo
3:35 pm - 7:50 pm
KEF
-
LGW
3h 15mnonstop
$168easyJet
Sun, Apr 26 - Sun, May 3
easyJet Logo
6:25 am - 8:30 am
LTN
-
KEF
3h 05mnonstop
easyJet Logo
9:10 am - 1:15 pm
KEF
-
LTN
3h 05mnonstop
$170easyJet
Thu, Apr 23 - Mon, Apr 27
easyJet Logo
2:05 pm - 4:25 pm
LGW
-
KEF
3h 20mnonstop
easyJet Logo
3:35 pm - 7:50 pm
KEF
-
LGW
3h 15mnonstop
$170easyJet
Wed, Sep 16 - Wed, Sep 23
easyJet Logo
6:15 am - 8:20 am
LTN
-
KEF
3h 05mnonstop
easyJet Logo
9:00 am - 12:55 pm
KEF
-
LTN
2h 55mnonstop
$171easyJet
Thu, Apr 23 - Mon, Apr 27
easyJet Logo
2:05 pm - 4:25 pm
LGW
-
KEF
3h 20mnonstop
easyJet Logo
3:35 pm - 7:50 pm
KEF
-
LGW
3h 15mnonstop
$172easyJet
Sun, Sep 13 - Wed, Sep 23
easyJet Logo
6:25 am - 8:30 am
LTN
-
KEF
3h 05mnonstop
easyJet Logo
9:00 am - 12:55 pm
KEF
-
LTN
2h 55mnonstop
$173easyJet
Thu, Apr 16 - Wed, Apr 22
British Airways Logo
7:35 am - 9:40 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
11:00 am - 3:10 pm
KEF
-
LHR
3h 10mnonstop
$179British Airways
Thu, Apr 16 - Wed, Apr 22
British Airways Logo
7:35 am - 9:40 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
11:00 am - 3:10 pm
KEF
-
LHR
3h 10mnonstop
$180British Airways
Wed, Apr 22 - Wed, Apr 29
Wizz Air Logo
8:30 am - 7:15 pm
LTN
-
KEF
11h 45m
1 stop
Wizz Air Logo
7:55 pm - 7:35 am
KEF
-
LTN
10h 40m
1 stop
$185Wizz Air
Mon, May 11 - Fri, May 15
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
4:10 pm - 8:20 pm
KEF
-
LHR
3h 10mnonstop
$197Icelandair
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 April.

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 absolute cheapest return flight from London to Reykjavik Keflavik Intl Airport costs $129 on the route between London Luton Airport (LTN) and Reykjavik Keflavik Intl Airport (KEF). However, over the past month, flights between London Stansted Airport (STN) and Reykjavik Keflavik Intl Airport (KEF) were, on average, 37% cheaper than other London-Reykjavik Keflavik Intl Airport routes. The most popular route is between London Gatwick Airport (LGW) 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 Friday, 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 Fridays 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 November, where tickets cost $103 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $375 and $369 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 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 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 Icelandair and PLAY

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 seasonFebruary
Cheapest flight$101
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 57% lower on average.
Flight from London Gatwick 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

  • 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 $101 for a one-way ticket and $168 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 PLAY?

    The two airlines most popular with KAYAK users for flights from London to Reykjavik are Icelandair and PLAY. With an average price for the route of $368 and an overall rating of 7.0, Icelandair is the most popular choice. PLAY is also a great choice for the route, with an average price of $255 and an overall rating of 7.0.

  • 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 $211 or less one-way and $316 or less round-trip.

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,easyJet

British Airways,Icelandair, +1 more

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Thursday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Friday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

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,easyJet

British Airways,Icelandair, +1 more

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

Thursday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Friday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Saturday

British Airways,Icelandair

British Airways,Icelandair

Sunday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 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 627 reviews
6.9Entertainment
8.0Crew
7.2Boarding
6.1Food
6.9Comfort
Airline reviews

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

4.0 OkayAnonymous, Feb 2026
FCO - KEF
Read more Icelandair reviews

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

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.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Excellent experience in every way, from ground crew helpfulness, boarding experience, inflight service all the way to modern equipment. My new favorite airline. I wish I could fly with them more often.

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

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

We were bumped despite seats existing on flight While checkin attendants were helpful Easyjet management was not. Only after threats were we allowed on plane at last minute. The online help desk was useless and waste of time (over an hour of useless chats)

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.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

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.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

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!

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

Information on your arrival and departure airports