LHR - KEF

$86 Find Cheap Flights from London Heathrow Airport 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 Heathrow to Reykjavik departing on 1/20. 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 23% 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.

Everything you should know

Cheapest round-trip
$163
Typical prices: $213-$326
Icelandair
Fri 11/28Sat 12/6
LHR - KEF • Non-stop
Cheapest one-way
$86
Typical prices: $106-$218
Icelandair
Tue 1/20
LHR - KEF • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
BA's economy fares include a carry-on bag.
Icelandair's economy class offers 31-inch pitch seats.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Icelandair
Cheapest • from $163 (round-trip)
Icelandair
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 27% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s 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 round-trip 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 round-trip flight deals from Heathrow to Reykjavik

Fri, Nov 28 - Sat, Dec 6
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$163Icelandair
Find Deal
Fri, Dec 5 - Sun, Dec 7
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$168Icelandair
Find Deal
Thu, Dec 4 - Thu, Dec 11
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$172Icelandair
Find Deal
Sun, Nov 2 - Fri, Nov 21
British Airways Logo
1:40 pm - 5:05 pmLHR-KEF
3h 25mnonstop
British Airways Logo
6:10 pm - 9:10 pmKEF-LHR
3h 00mnonstop
$174British Airways
Find Deal
Mon, Feb 23 - Thu, Feb 26
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$175Icelandair
Find Deal
Mon, Feb 2 - Fri, Feb 13
British Airways Logo
7:35 am - 10:55 amLHR-KEF
3h 20mnonstop
British Airways Logo
6:10 pm - 9:10 pmKEF-LHR
3h 00mnonstop
$183British Airways
Find Deal
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Multiple Airlines Logo
11:15 am - 6:50 pmKEF-LHR
7h 35m1 stop
$184Multiple Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Multiple Airlines Logo
1:00 pm - 9:35 pmKEF-LHR
8h 35m1 stop
$209Multiple Airlines
Find Deal
Sat, Jan 31 - Fri, Feb 6
Scandinavian Airlines Logo
5:00 pm - 10:45 amLHR-KEF
17h 45m1 stop
Scandinavian Airlines Logo
11:30 am - 5:40 pmKEF-LHR
6h 10m1 stop
$227Scandinavian Airlines
Find Deal
Fri, Jan 16 - Sun, Jan 18
Scandinavian Airlines Logo
3:35 pm - 10:40 amLHR-KEF
19h 05m2 stops
Scandinavian Airlines Logo
11:15 am - 6:50 pmKEF-LHR
7h 35m1 stop
$230Scandinavian Airlines
Find Deal
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.

How much is a round-trip flight from London Heathrow Airport 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 Heathrow Airport to Reykjavik Keflavik Intl Airport departing in November.

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

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.

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 Heathrow Airport to Reykjavik. For your return ticket, we recommend flying on a Monday and avoiding Fridays for the best 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 $208 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $405 and $377 respectively.

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 5 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Reykjavik

 
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
Icelandair

Saga Premium includes lounge access at Keflavik and two checked bags up to 70 pounds each.


Icelandair's economy class offers 31-inch pitch seats, with extra legroom options available.

Read more about Icelandairby Stefanie Waldek
British Airways

BA's economy fares include a carry-on bag, unlike many budget carriers.


BA's Euro Traveller offers ergonomic leather seats with 31-inch pitch for comfort.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on 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
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

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.

Read more

Good to know

Low seasonApril
Cheapest flight$86
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from London Heathrow Airport to Reykjavik

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 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.

FAQs for booking London Heathrow Airport to Reykjavik 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 $86 for a one-way ticket and $163 for a round-trip.

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

    Yes

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

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Reykjavik, also known as Reykjavik Keflavik Intl.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from London to Reykjavik are Icelandair and British Airways. With an average price for the route of $309 and an overall rating of 7.0, Icelandair is the most popular choice. British Airways is also a great choice for the route, with an average price of $252 and an overall rating of 6.7.

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

  • 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and KEF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 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? 25% of our users found flights on this route for $226 or less one-way and $402 or less round-trip.

Prefer to fly direct from London Heathrow Airport to Reykjavik?

 
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 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.
7.0
IcelandairOverall score based on 561 reviews
7.2Boarding
6.2Food
6.9Comfort
7.0Entertainment
8.1Crew
Airline reviews

It was too cold in the plane my feet froze

8.0 ExcellentDavid, Oct 2025MCO - KEF
Read more Icelandair reviews

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.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

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

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.