LHR - KEF

£75 Find Cheap Flights from London Heathrow Airport to Reykjavik-Keflavik Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Reykjavik departing on 20/5. 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 return fare
£119
Overall average: £204
Icelandair
Sat 18/4Mon 27/4
LHR - KEF • Direct
Cheapest one-way flight
£75
Typical prices: £87-£227
Icelandair
Wed 20/5
LHR - KEF • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA offers free cabin bags with economy fares.
Check-in online 24 hours before with Icelandair.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £119 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways and Icelandair. Average duration is 3h 17m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £206 (return)
Shortest trip • 7h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 46% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Reykjavik!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Heathrow to Reykjavik (LHR-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 return flight deals from Heathrow to Reykjavik

Sat, 18 Apr - Mon, 27 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55
KEF
-
LHR
3h 15mdirect
£119Icelandair
Sat, 18 Apr - Sun, 26 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55
KEF
-
LHR
3h 15mdirect
£119Icelandair
Sun, 26 Apr - Sat, 2 May
British Airways Logo
07:25 - 09:30
LHR
-
KEF
3h 05mdirect
British Airways Logo
10:20 - 14:25
KEF
-
LHR
3h 05mdirect
£122British Airways
Fri, 17 Apr - Mon, 20 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55
KEF
-
LHR
3h 15mdirect
£125Icelandair
Sun, 26 Apr - Sat, 2 May
British Airways Logo
07:25 - 09:30
LHR
-
KEF
3h 05mdirect
British Airways Logo
10:20 - 14:25
KEF
-
LHR
3h 05mdirect
£125British Airways
Thu, 23 Apr - Sun, 26 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55
KEF
-
LHR
3h 15mdirect
£129Icelandair
Sat, 18 Apr - Wed, 22 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
16:10 - 20:20
KEF
-
LHR
3h 10mdirect
£129Icelandair
Sat, 18 Apr - Thu, 23 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
16:10 - 20:20
KEF
-
LHR
3h 10mdirect
£130Icelandair
Tue, 21 Apr - Wed, 29 Apr
British Airways Logo
07:50 - 09:55
LHR
-
KEF
3h 05mdirect
British Airways Logo
11:00 - 15:10
KEF
-
LHR
3h 10mdirect
£131British Airways
Wed, 15 Apr - Wed, 22 Apr
British Airways Logo
07:55 - 10:00
LHR
-
KEF
3h 05mdirect
British Airways Logo
11:00 - 15:10
KEF
-
LHR
3h 10mdirect
£134British Airways
Booking Insights

KAYAK’s insights & trends for Heathrow to Reykjavik flights

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

What’s the cheapest day of the week to fly from London Heathrow Airport to Reykjavik-Keflavik Airport?

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

Your flight ticket price will generally be cheaper if you fly to Reykjavik-Keflavik Airport on a Sunday and more expensive on a Friday. On your return trip to London Heathrow Airport, you should consider flying back on a Friday, and avoid Mondays for better deals.

What is the cheapest month to fly from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to Reykjavik Keflavik Intl Airport is January, where tickets cost £124 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £346 and £314 respectively.

Can I save money by flying with a stopover from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £262 on average.

How far in advance should I book a flight from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport 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 Heathrow to Reykjavik

 
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

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 out at sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Cheap tickets from London Heathrow Airport to Reykjavik-Keflavik Airport

Low seasonMarch
Cheapest flight£75
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from London Heathrow Airport to Reykjavik-Keflavik Airport

When to book flights from Heathrow to Reykjavik

Are your dates flexible? Find out the best times to travel from Heathrow to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

FAQs for booking London Heathrow Airport to Reykjavik-Keflavik Airport flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport was £74 for a one-way ticket and £119 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Reykjavik-Keflavik Airport?

    London Heathrow Airport and Reykjavik-Keflavik Airport are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at Reykjavik Keflavik Intl.

  • Which airlines offer Wi-Fi service onboard planes from London Heathrow Airport to Reykjavik-Keflavik Airport?

    Virgin Atlantic, KLM, and Air France offer inflight Wi-Fi service on the London Heathrow Airport to Reykjavik-Keflavik Airport flight route.

  • Which aircraft models fly most regularly from London Heathrow Airport to Reykjavik-Keflavik Airport?

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

  • Which airline alliances offer flights from London Heathrow Airport to Reykjavik-Keflavik Airport?

    SkyTeam, and oneworld are the airline alliances operating flights between London Heathrow Airport and Reykjavik-Keflavik Airport, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from London Heathrow Airport to Reykjavik-Keflavik Airport?

    There are direct flights from London Heathrow Airport to Reykjavik-Keflavik Airport on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from London to Reykjavik are Scandinavian Airlines and Icelandair. With an average price for the route of £262 and an overall rating of 7.3, Scandinavian Airlines is the most popular choice. Icelandair is also a great choice for the route, with an average price of £252 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Reykjavik-Keflavik Airport?

    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 Heathrow Airport to Reykjavik-Keflavik Airport.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport to Reykjavik-Keflavik Airport?

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

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

    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-Keflavik Airport from London Heathrow Airport 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 Heathrow Airport to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight from Reykjavik-Keflavik Airport to London Heathrow Airport? 25% of our users found flights on this route for £292 or less one-way and £331 or less round-trip.

Prefer to fly direct from London Heathrow Airport to Reykjavik-Keflavik Airport?

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

Direct departures

London Heathrow to Reykjavik Keflavik Intl

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair

British Airways,Icelandair

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

British Airways,Icelandair

See more direct flights

Direct returns

Reykjavik Keflavik Intl to London Heathrow

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair

British Airways,Icelandair

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

British Airways,Icelandair

See more direct flights

Reviews of the top 4 airlines flying from Heathrow to Reykjavik

 
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 Heathrow to Reykjavik? 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.
7.3
Scandinavian AirlinesOverall score based on 1715 reviews
7.3Comfort
7.6Boarding
6.7Food
8.0Crew
6.7Entertainment
Airline reviews

Excellent crew members, but my seat and food wasn’t the best

6.0 GoodAnonymous, Mar 2026
CPH - PRG
Read more Scandinavian Airlines reviews

Excellent crew members, but my seat and food wasn’t the best

Curious and efficient service ! First time flying with SAS and very pleased!

I wish they have given us explanations for the delays. And the rebooking process in Copenhagen was too long. I had to wait about 4 hours before they assign me a hotel. From there the handling process (accommodation, transportation and meal) was excellent.

Our originating flight into Copenhagen was an hour delayed, causing us to miss our main flight from Copenhagen to the US. There had been snow and we needed to be de-iced, but they seemed very slow getting the flight ready, with no explanation. The delay caused us to be put in with thousands stuck at the airport with an all day wait to get rebooked on a flight 2 days out.

The flight was very cold, and the seats were rather uncomfortable. The food has been better on our other SAS experiences. Most significantly, the luggage with most of my wife's personal items and clothes didn't make the flight. Hoping for a quick resolution, but no real opportunity to speak with a Human has us concerned.

Ancient aircraft (busted armrests, poor cabin temperature with no option for passenger control). Garbage everywhere. Risible checking of safely conditions on landing. Also, late.

Feels like economy sits are getting smaller especially while eating food

Terrible customer service. The flight attendants were rude. We experienced significant turbulence for a large portion of the flight and there was very little check in from the flight deck. The space was extremely limited to the point where it felt like torture. Never again

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Really like this airline. Best food for airlines and comfortable seats and attentive staff. Delay was due to air traffic.

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.

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)

It was good except they could offer free water and tea/coffe

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 and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

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

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

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

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

You will pay for everything and feels like the airplane is old

The luggage problem I previously mentioned was actually this flight

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

Everything you need to know for your flight from Heathrow to Reykjavik

Information on your arrival and departure airports