LHR - KEF

$76 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 1/31. 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
$118
Overall average: $201
Icelandair
Tue 1/13Tue 1/20
LHR - KEF • Non-stop
Cheapest one-way
$76
Typical prices: $128-$263
Icelandair
Sat 1/31
LHR - KEF • Non-stop
Our travelers' advice
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
When to book
7 weeks
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 30% price drop
July
Most popular
Good to know
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+1
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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, Jan 13 - Tue, Jan 20
Icelandair Logo
12:15 pm - 3:30 pmLHR-KEF
3h 15mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$118Icelandair
Find Deal
Thu, Jan 22 - Mon, Jan 26
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$123Icelandair
Find Deal
Fri, Jan 16 - Thu, Jan 22
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$129Icelandair
Find Deal
Fri, Jan 23 - Tue, Jan 27
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$130Icelandair
Find Deal
Thu, Jan 22 - Tue, Jan 27
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$134Icelandair
Find Deal
Tue, Jan 13 - Tue, Jan 20
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$136Icelandair
Find Deal
Fri, Jan 23 - Mon, Jan 26
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$138Icelandair
Find Deal
Thu, Jan 15 - Thu, Jan 22
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$141Icelandair
Find Deal
Tue, Jan 20 - Fri, Jan 23
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$146Icelandair
Find Deal
Thu, Jan 15 - Thu, Jan 22
Icelandair Logo
12:15 pm - 3:30 pmLHR-KEF
3h 15mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$149Icelandair
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.

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 Tuesdays 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 $201 (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 7 weeks before departure, which saves you about 45% 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.
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.

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 seasonAugust
Cheapest flight$76
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly with an average 42% 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 $76 for a one-way ticket and $118 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, 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 $346 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 $239 or less one-way and $294 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 584 reviews
6.9Comfort
7.0Entertainment
7.1Boarding
8.0Crew
6.2Food
Airline reviews

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.

2.0 MediocrePei, Nov 2025CDG - KEF
Read more Icelandair reviews

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.

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.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

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

Information on your arrival and departure airports