KEF - LHR

$101 Find Cheap Flights from Reykjavik to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reykjavik to Heathrow departing on 5/18. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Reykjavik to London, 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 Reykjavik to London, as well as popular online travel agencies
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Expert advice
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Flights Deals

Cheap Flight Deals from Reykjavik to London (KEF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reykjavik to London 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.

Recent round-trip flight deals from Reykjavik to Heathrow

KAYAK's recommended round-trip deals from the most popular airlines that fly from Reykjavik to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
11:05 am - 6:50 pmKEF-LHR
6h 45m1 stop
Scandinavian Airlines Logo
7:50 pm - 10:10 amLHR-KEF
15h 20m1 stop
$205Scandinavian Airlines
Find Deal
Wed, May 14 - Fri, Sep 5
Scandinavian Airlines Logo
11:05 am - 9:35 pmKEF-LHR
9h 30m1 stop
Scandinavian Airlines Logo
9:05 pm - 10:10 amLHR-KEF
14h 05m2 stops
$227Scandinavian Airlines
Find Deal
Wed, May 14 - Fri, Sep 5
 Logo
10:45 am - 3:00 pmKEF-LHR
3h 15mnonstop
 Logo
7:50 pm - 7:05 amLHR-KEF
12h 15m1 stop
Mon, Jun 9 - Thu, Jun 12
 Logo
11:05 am - 6:50 pmKEF-LHR
6h 45m1 stop
 Logo
7:35 am - 9:40 amLHR-KEF
3h 05mnonstop
Wed, May 14 - Fri, Sep 5
Lufthansa Logo
1:15 am - 7:40 pmKEF-LHR
17h 25m1 stop
Lufthansa Logo
8:25 pm - 8:20 amLHR-KEF
36h 55m2 stops
$275Lufthansa
Find Deal
Thu, May 15 - Tue, May 20
Icelandair Logo
4:10 pm - 8:20 pmKEF-LHR
3h 10mnonstop
Icelandair Logo
9:25 pm - 11:35 pmLHR-KEF
3h 10mnonstop
$285Icelandair
Find Deal
Tue, Aug 19 - Sat, Aug 23
Icelandair Logo
4:10 pm - 8:20 pmKEF-LHR
3h 10mnonstop
Icelandair Logo
1:05 pm - 3:15 pmLHR-KEF
3h 10mnonstop
$300Icelandair
Find Deal
Wed, May 14 - Fri, Sep 5
Lufthansa Logo
12:25 am - 7:40 amKEF-LHR
6h 15m1 stop
Lufthansa Logo
4:25 pm - 12:10 amLHR-KEF
8h 45m1 stop
$340Lufthansa
Find Deal
Wed, May 21 - Thu, May 29
Austrian Airlines Logo
12:10 am - 2:20 pmKEF-LHR
13h 10m1 stop
Austrian Airlines Logo
9:05 am - 11:20 pmLHR-KEF
15h 15m1 stop
$428Austrian Airlines
Find Deal
Tue, May 13 - Fri, Sep 5
Austrian Airlines Logo
12:10 am - 9:00 amKEF-LHR
7h 50m1 stop
Austrian Airlines Logo
9:05 am - 11:20 pmLHR-KEF
15h 15m1 stop
$458Austrian Airlines
Find Deal
Tue, Jun 10 - Sun, Jun 15
Expert advice

Expert advice for your flight from Reykjavik to Heathrow

 
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
American Airlines

Main Cabin Extra provides early boarding and complimentary drinks.


AA offers high-speed Wi-Fi for purchase on most flights.

Icelandair

Saga Premium includes free Wi-Fi for two devices, enhancing connectivity.


Economy offers 31-inch legroom with options for extra legroom seats.

Read more about Icelandairby Stefanie Waldek
British Airways

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


BA offers 31-inch legroom on most short-haul flights, ensuring comfort.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
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
Useful Info

KAYAK's insights & trends for Reykjavik to Heathrow flights

Get data-powered insights and trends into flights from Reykjavik to Heathrow 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 Reykjavik to London?

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

For Reykjavik to London, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London back to Reykjavik, the best deals are generally found on Thursday, with Wednesday being the most expensive.

What is the cheapest month to fly from Reykjavik Keflavik Intl Airport to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Reykjavik Keflavik Intl Airport to London Heathrow 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 Reykjavik Keflavik Intl Airport to London Heathrow Airport is March, where tickets cost $222 (return) on average. On the other hand, the most expensive months are September and November, where the average cost of round-trip tickets is $408 and $375 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $482, prices are generally cheapest when you fly direct.

Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$101
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Reykjavik to London

When to book flights from Reykjavik to Heathrow

Are your dates flexible? Find out the best times to travel from Reykjavik to Heathrow 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 Reykjavik to London flights

  • Which affordable ticket from Reykjavik to London is the most environmentally friendly?

    A non-stop flight aboard PLAY from KEF to STN is one of the cheapest tickets you can buy. This flight also emits about 56% less CO2 than average flights that fly this same route. PLAY also minimizes packaging and has reduced its use of single-use plastics.

  • Which airlines provide a more comfortable flight from Reykjavik to London?

    Scandinavian Airlines offers competitively priced economy tickets that include a USB outlet at your seat and either 30 or 31 inches of seat pitch. The longer leg of the journey often has on-demand seat-back entertainment. PLAY offers a cheap ticket with few frills but 30 inches of seat pitch.

  • Does the Keflavic International Airport (KEF) provide assistance for travelers with mobility challenges?

    Trained staff will help you check in, deal with your luggage, and pass through security. They can help you access the bathrooms and collect pre-ordered goods from Duty Free. They provide the necessary assistance as you board the plane and help you stow any carry-on luggage you might have.

  • Which is the best airline for sending an unaccompanied minor from Reykjavik to London?

    A non-stop PLAY airlines flight from KEF to STN offers Unaccompanied Minor service to children at least 8 years old. PLAY staff will oversee your child from when you drop them off at KEF until they are picked up at STN, from boarding, through the flight, deplaning, going through customs, and collecting baggage.

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

    In the last 3 days, the lowest price for a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport was $101 for a one-way ticket and $205 for a round-trip.

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

    A passport is required to fly from Reykjavik to London.

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

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

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

    The Airbus A320neo is the aircraft model that flies most regularly on the Reykjavik to London flight route.

  • Which airline alliances offer flights from Reykjavik to London?

    oneworld, and Star Alliance are the airline alliances operating flights between Reykjavik and London, with oneworld being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Reykjavik to London are Icelandair and British Airways. With an average price for the route of $321 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 $372 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from Reykjavik to London?

    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 Reykjavik to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Reykjavik 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 Reykjavik to London?

    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 London with an airline and back to Reykjavik with another airline. Booking your flights between Reykjavik and LHR 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 Reykjavik to London?

    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 London from Reykjavik 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 Reykjavik Keflavik Intl Airport to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $214 or less one-way and $386 or less round-trip.
  • Flights from Reykjavik to London will depart from Keflavik International Airport (KEF) and land at any of the five London airports. London Heathrow Airport (LHR) and London Gatwick Airport (LGW) are the largest. But cheap flights from KEF also land at London City Airport (LCY), London Stansted Airport (STN) , and London Luton Airport (LTN).
  • Because Iceland is a party to the Schengen Agreement, Americans who visit Iceland for less than 90 days do not need a visa to either enter or exit the country. If you are traveling to England as a tourist, you do not need a visa if you intend to stay less than 6 months.
  • If you want to rent a car when you land in London, all five London airports have on-site car rental agencies. If you will be driving with children, be sure to reserve an add-on child safety seat when you make your reservation. According to British law, children under the age of 12 or the height of 4.5 feet must be restrained in an appropriate child safety seat.
  • Some of the cheapest KEF-to-London tickets available require a self-transfer. Before purchasing such a ticket, make sure the connection leaves you enough time to deplane, pass through customs, collect any checked baggage, check in for the next leg of your journey, and go through security again.
  • One of the cheapest flights from KEF to London that you'll be able to find that allows one carry-on is aboard Transavia France in combination with easyJet. Since the bag will have to be allowed aboard both airlines, it should not exceed 22 lb or dimensions of 22 x 15 x 9 inches.

Prefer to fly direct from Reykjavik to London?

Find which airlines fly direct from Reykjavik Keflavik Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Reykjavik Keflavik Intl to London Heathrow

Monday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Tuesday

Icelandair, TAP AIR PORTUGAL, Turkish Airlines, +1 more

Icelandair, TAP AIR PORTUGAL, +2 more

Wednesday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Thursday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Friday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Saturday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Sunday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

See more direct flights

Direct returns

London Heathrow to Reykjavik Keflavik Intl

Monday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Tuesday

Icelandair, TAP AIR PORTUGAL, Turkish Airlines, +1 more

Icelandair, TAP AIR PORTUGAL, +2 more

Wednesday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Thursday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Friday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Saturday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

Sunday

American Airlines, British Airways, Icelandair, +5 more

American Airlines, British Airways, +6 more

See more direct flights
See more direct flights

Top airlines flying from Reykjavik to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Reykjavik to London. 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 Reykjavik to Heathrow? 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 487 reviews
7.0Comfort
7.1Boarding
7.1Entertainment
6.3Food
8.0Crew
Airline reviews

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

10.0 ExcellentJames, Apr 2025MAN - KEF
Read more Icelandair reviews

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Boarding was delayed and we had to get on buses to plane so group # didn't matter. No food or drinks served gratis. Seats were small, knees smashed into the seat ahead, didn't recline. Crew was excellent though.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Our original booking with Kayak -our first experience -was exactly what we wanted and worked well. Updates were friendly and reassuring as were the contacts with UnderPricer so a big win-win. We learned a lot on your reliability and will definitely put you on our organisational list for the future.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

Plane and seats ok. Dinners going and coming back were not fantastic. Breakfast from Seattle to London fine with bagel, cheese and fried egg. Second meal on London to Seattle not my favorite of kind of pizza sauce in a pastry. Came with water about three different times on each of my long flights. Staff on all very friendly and helpful.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

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

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