LHR - KEF

$101 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 4/16. 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
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
$196
Overall average: $270
Icelandair, Scandinavian Airlines
Wed 4/15Wed 4/22
LHR - KEF • Non-stop
Cheapest non-stop
$196
Typical prices: $215-$447
British Airways
Tue 4/28Wed 4/29
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
Icelandair
Cheapest • from $200 (round-trip)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
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
British Airways
Most punctual • 93% on-time
Morning flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
7 weeks
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 44% price drop
October
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

Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Multiple Airlines Logo
11:15 am - 6:50 pm
KEF
-
LHR
6h 35m
1 stop
$196Multiple Airlines
Tue, May 12 - 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
$200Icelandair
Sun, Mar 15 - Fri, Mar 20
British Airways Logo
7:20 am - 10:40 am
LHR
-
KEF
3h 20mnonstop
British Airways Logo
6:10 pm - 9:10 pm
KEF
-
LHR
3h 00mnonstop
$203British Airways
Sun, Mar 15 - Fri, Mar 20
British Airways Logo
7:20 am - 10:40 am
LHR
-
KEF
3h 20mnonstop
British Airways Logo
6:10 pm - 9:10 pm
KEF
-
LHR
3h 00mnonstop
$207British Airways
Mon, Apr 20 - Wed, Apr 22
British Airways Logo
7:40 am - 9:45 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
11:00 am - 3:10 pm
KEF
-
LHR
3h 10mnonstop
$210British Airways
Sat, May 9 - Sat, May 23
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
4:10 pm - 8:20 pm
KEF
-
LHR
3h 10mnonstop
$211Icelandair
Thu, May 7 - Tue, May 12
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$212Icelandair
Tue, Apr 28 - Wed, Apr 29
Multiple Airlines Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Multiple Airlines Logo
10:30 am - 5:40 pm
KEF
-
LHR
6h 10m
1 stop
$213Multiple Airlines
Sat, May 9 - Tue, May 12
British Airways Logo
7:20 am - 9:25 am
LHR
-
KEF
3h 05mnonstop
British Airways Logo
10:50 am - 3:00 pm
KEF
-
LHR
3h 10mnonstop
$214British Airways
Thu, Apr 23 - Mon, Apr 27
Icelandair Logo
9:25 pm - 11:35 pm
LHR
-
KEF
3h 10mnonstop
Icelandair Logo
7:40 am - 11:55 am
KEF
-
LHR
3h 15mnonstop
$215Icelandair
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?

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 Monday, 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 Thursday 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 $164 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $408 and $390 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 7 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 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 seasonJanuary
Cheapest flight$101
Best time to beat the crowds with an average 45% 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 $101 for a one-way ticket and $196 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?

    Virgin Atlantic, KLM, and Air France 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 $379 and an overall rating of 7.1, Icelandair is the most popular choice. British Airways is also a great choice for the route, with an average price of $428 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 $368 or less one-way and $403 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.
7.1
IcelandairOverall score based on 617 reviews
6.2Food
7.0Comfort
7.2Boarding
8.1Crew
7.0Entertainment
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.

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.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

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

Information on your arrival and departure airports