LHR - KEF

$106 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 5/30. 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
$204
Typical prices: $475-$279
Icelandair
Tue 6/2Fri 6/5
LHR - KEF • Non-stop
Cheapest one-way
$106
Typical prices: $119-$477
Icelandair
Sat 5/30
LHR - KEF • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
Cheapest • from $204 (round-trip)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with British Airways and Icelandair. Average duration is 3h 08m
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
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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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

Tue, Jun 2 - Fri, Jun 5
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
4:10 pm - 8:20 pm
KEF
-
LHR
3h 10mnonstop
$204Icelandair
Thu, May 14 - Sun, May 17
British Airways Logo
7:35 am - 9:40 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
10:20 am - 2:30 pm
KEF
-
LHR
3h 10mnonstop
$215British Airways
Tue, May 5 - Tue, May 12
British Airways Logo
7:50 am - 9:55 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
10:50 am - 3:00 pm
KEF
-
LHR
3h 10mnonstop
$217British Airways
Wed, May 13 - Tue, May 19
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
4:10 pm - 8:20 pm
KEF
-
LHR
3h 10mnonstop
$243Icelandair
Tue, May 12 - Mon, May 18
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$245Icelandair
Wed, May 13 - Wed, May 20
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$255Icelandair
Wed, May 6 - Fri, May 8
Scandinavian Airlines Logo
7:50 pm - 10:25 am
LHR
-
KEF
15h 35m
1 stop
Scandinavian Airlines Logo
1:25 am - 1:35 pm
KEF
-
LHR
11h 10m
1 stop
$257Scandinavian Airlines
Wed, May 6 - Sat, May 9
Multiple Airlines Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Multiple Airlines Logo
5:10 pm - 9:20 am
KEF
-
LHR
15h 10m
1 stop
$261Multiple Airlines
Tue, May 12 - Sun, May 24
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$266Icelandair
Mon, Jun 1 - Mon, Jun 8
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$267Icelandair
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 June.

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, Tuesday is the most expensive day to fly from London Heathrow Airport to Reykjavik. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays for the best deals.

What is the cheapest month to fly from London 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 $183 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $465 and $403 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 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 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 on the 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

Low seasonMarch
Cheapest flight$106
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 22% increase in price.
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 $106 for a one-way ticket and $204 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?

    Only Virgin Atlantic offers 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 $401 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 $472 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 $371 or less one-way and $462 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 636 reviews
6.2Food
7.2Boarding
6.9Comfort
6.9Entertainment
8.0Crew
Airline reviews

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

6.0 GoodSimon, Apr 2026
JFK - KEF
Read more Icelandair reviews

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

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

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

food options were terrible. for a 10-hour flight, there should be 2 decent meals. Also, flight attendants should come around with drinks more than just at the meals.

Smooth flight. The seats were comfortable but the reclining mechanism didn't work very well. My wife's seat required the flight attendant to push the seat forward while she pushed the button. The leg support didn't want to return to its home under the seat. I ordered the diabetic meal which was full of carbs. It was low in sugar but carbs turn into sugar so was it really diabetic? Overall the flight was pleasant, long but pleasant.

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

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

Information on your arrival and departure airports