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Keflavik Intl

$114+ Cheap flights from London (LON) to Keflavik Intl (KEF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from London to Reykjavik Keflavik Intl are usually found in January or February, booked 84 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from London to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 31, 2025.

Round-trip from

$187
(Icelandair)

One-way from

$114
(easyJet)

Popular in

July

Cheapest in

January

Average price

$340

Good round-trip deal

$170 or less

Good one-way deal

$200 or less
From London (LON) to Reykjavik Keflavik Intl
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One-way flight from London (LON) to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 35% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from London (LON) to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from London (LON) to Reykjavik Keflavik Intl.
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Find flight deals from London to Keflavik Intl

Cheapest flights from London to Keflavik Intl
Explore the most affordable flight options available from London to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/103:05 pmLTN - KEF
1 stop8h 45mWizz Air
mié. 9/248:55 pmKEF - LTN
1 stop9h 50mWizz Air
Deal found 7/31$189
This easyJet deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/307:00 amLTN - KEF
Nonstop3h 15measyJet
jue. 1/110:30 amKEF - LTN
Nonstop3h 00measyJet
Deal found 7/30$190
This FlightHub deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/1411:55 amLGW - KEF
Nonstop3h 25mIcelandair
dom. 12/217:40 amKEF - LGW
Nonstop3h 15mIcelandair
Deal found 7/31$190
This British Airways deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:35 amLHR - KEF
Nonstop3h 20mBritish Airways
vie. 12/56:10 pmKEF - LHR
Nonstop3h 00mBritish Airways
Deal found 7/31$192
This easyJet deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/222:25 pmLGW - KEF
Nonstop3h 20measyJet
dom. 11/2311:20 amKEF - LGW
Nonstop3h 10measyJet
Deal found 7/31$193
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/238:30 amLTN - KEF
1 stop11h 15mMultiple Airlines
dom. 10/129:35 amKEF - LTN
Nonstop3h 00mMultiple Airlines
Deal found 7/31$194
This SmartFares deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/148:35 pmLHR - KEF
Nonstop3h 20mIcelandair
mar. 11/187:35 amKEF - LHR
Nonstop3h 15mIcelandair
Deal found 7/31$200
This Booking.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/197:50 pmLHR - KEF
1 stop14h 55mScandinavian Airlines
jue. 11/2711:30 amKEF - LHR
1 stop7h 20mScandinavian Airlines
Deal found 7/31$211
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/308:00 amLGW - KEF
2 stops11h 45mMultiple Airlines
vie. 10/1011:00 amKEF - LGW
Nonstop3h 15mMultiple Airlines
Deal found 7/30$226
This Orbitz deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/247:35 amLHR - KEF
Nonstop3h 20mMultiple Airlines
mié. 11/2611:30 amKEF - LHR
1 stop10h 10mMultiple Airlines
Deal found 7/31$235
This SWISS deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/106:35 pmLGW - KEF
1 stop14h 45mSWISS
mar. 9/234:10 pmKEF - LGW
1 stop24h 40mSWISS
Deal found 7/30$261

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from London to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

London

Fly to

Keflavik Intl

Route

Depart

Return

Price

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

mar. 1/20

11:55 am-3:20 pm

Nonstop3h 25m

Reykjavik Keflavik Intl

vie. 1/23

7:40 am-10:55 am

Nonstop3h 15m

$187

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

mié. 9/10

3:05 pm-10:50 pm

1 stop8h 45m

Reykjavik Keflavik Intl

mié. 9/24

8:55 pm-7:45 am

1 stop9h 50m

$189

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

lun. 1/12

7:35 am-10:55 am

Nonstop3h 20m

Reykjavik Keflavik Intl

vie. 1/16

6:10 pm-9:10 pm

Nonstop3h 00m

$190

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

mar. 12/30

7:00 am-10:15 am

Nonstop3h 15m

Reykjavik Keflavik Intl

jue. 1/1

10:30 am-1:30 pm

Nonstop3h 00m

$190

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

jue. 1/8

1:55 pm-5:15 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

mié. 1/14

5:55 pm-7:45 am

1 stop13h 50m

$191

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

jue. 1/1

1:55 pm-5:15 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

sáb. 1/3

6:35 pm-9:45 pm

Nonstop3h 10m

$192

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

mar. 9/23

8:30 am-6:45 pm

1 stop11h 15m

Reykjavik Keflavik Intl

dom. 10/12

9:35 am-1:35 pm

Nonstop3h 00m

$194

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

jue. 1/8

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

mié. 1/14

4:20 pm-7:30 pm

Nonstop3h 10m

$197

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

mié. 11/19

7:50 pm-10:45 am

1 stop14h 55m

Reykjavik Keflavik Intl

jue. 11/27

11:30 am-6:50 pm

1 stop7h 20m

$211

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

lun. 11/24

7:35 am-10:55 am

Nonstop3h 20m

Reykjavik Keflavik Intl

mié. 11/26

11:30 am-9:40 pm

1 stop10h 10m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 29 results
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The best insider tips for London to Reykjavik Keflavik Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your London to Reykjavik Keflavik Intl Airport trip
Airlines
PLAY

PLAY Basic Plus includes priority boarding and a carry-on, suitable for light travelers.


PLAY Flex offers extra legroom seats and two checked bags, ideal for longer trips.

Read more about PLAYby Victoria M. Walker
Icelandair

Saga Premium offers noise-cancelling headphones and generous legroom, enhancing comfort on longer flights.


Economy Light allows a free carry-on, but checked luggage incurs fees, ideal for light packers.

Read more about Icelandairby Bill Fink
Our travel experts
Victoria M. Walker

Victoria M. Walker

Expert on PLAY

Victoria M. Walker

Victoria M. Walker

Victoria M. Walker is an award-winning travel reporter who writes the “Carrying On” newsletter. Victoria writes about airlines and hotels and fell in love with travel after her first flight in 2014. She was raised in Virginia and is based in Brooklyn, NY. She is interested in finding the best pizza and coffee in every city she visits.

Read more
Bill Fink

Bill Fink

Expert on Icelandair

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more

Best time to book a flight from London to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from London to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from London to Keflavik Intl. Price data was last updated on July 25, 2025.

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Reykjavik Keflavik Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of $328). Flying from London to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to KEF?

Find hourly flight availability from London to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

It’s optimal to fly from London to Reykjavik Keflavik Intl Airport in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from London to Keflavik Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their London to Reykjavik Keflavik Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Reykjavik Keflavik Intl Airport

Explore weekly flight availability from London to Keflavik Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 31, 2025.

The most flights from LON to KEF are scheduled on a Thursday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from London to Reykjavik Keflavik Intl Airport?

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated julio 31, 2025.
Peruse reviews from past customers who have flown with Norwegian, SWISS, and Scandinavian Airlines from London to Reykjavik Keflavik Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Norwegian
7.8
Good
234 reviews
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
SWISS
7.5
Good
1,686 reviews
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Scandinavian Airlines
7.4
Good
1,457 reviews
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Icelandair
7.0
Good
520 reviews
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
easyJet
6.9
Okay
1,822 reviews
Norwegian
7.8
Good
234 reviews

Food

6.5

Overall

7.8

Crew

8.1

Boarding

7.7

Entertainment

6.1

Comfort

7.5

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight

Related info for your journey

Find useful and relevant information for your journey from London to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from London to Reykjavik Keflavik Intl Airport round-trip?

    Cheapflights users have booked flights from London to Reykjavik Keflavik Intl Airport round-trip from $187. Other airlines that can offer you cheap pricing are Wizz Air, from $189, and British Airways, from $190. Users have found that Icelandair is 5% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London to Reykjavik Keflavik Intl Airport one-way?

    The cheapest airline one-way is easyJet, with whom users have recently found tickets for as low as $114. However, be on the lookout for offers from British Airways and Wizz Air, as they are both options that can get you from London to Reykjavik Keflavik Intl Airport for a low price.

  • What are the most popular routes from London to Reykjavik Keflavik Intl Airport?

    The most popular route from London to Reykjavik Keflavik Intl Airport is London Luton - Reykjavik Keflavik Intl. You may also consider London Gatwick - Reykjavik Keflavik Intl or London Heathrow - Reykjavik Keflavik Intl.

  • What are the most reliable airlines from London to Reykjavik Keflavik Intl Airport?

    No one likes to see their flight delayed. When booking a flight from London to Reykjavik Keflavik Intl Airport consider choosing Emirates (100%), Icelandair (88%) or TAP AIR PORTUGAL (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Reykjavik Keflavik Intl Airport?

    Looking for the cheapest flight from London to Reykjavik Keflavik Intl Airport? While on average our users pay $1,117, our data indicates the cheapest price to be $203. The most popular route (London Luton - Reykjavik Keflavik Intl), is priced around $92.

  • Can I find deals for flights from London to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on London to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Keflavik Intl.

  • Can I find deals for business class flights from London to Keflavik Intl?

    Yes. Cheapflights offers flight deals from London to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of $328). Flying from London to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Top 3 airlines flying from London to Keflavik Intl

Discover the top 3 airlines that operate flights from London to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest$79Average$100FlexibilityNo cancel feeOn-time86%
British AirwaysCheapest$153Average$252FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$156Average$281FlexibilityNo cancel feeOn-time76%

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