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Keflavik Intl

$64+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 Monday and return on a Tuesday

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$135
(easyJet)

One-way from

$64
(easyJet)

Popular in

August

Cheapest in

January

Average price

$125

Good round-trip deal

$176 or less

Good one-way deal

$64 or less
Provider with most accurate pricing for London (LON)-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Reykjavik Keflavik Intl flights.
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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. 23% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This easyJet deal was found by Cheapflights users on 3/26. 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.
Wed 11/193:35 pmLTN - KEF
Nonstop3h 15measyJet
Sun 11/2310:00 amKEF - LTN
Nonstop3h 00measyJet
Deal found 3/26$125
This easyJet deal was found by Cheapflights users on 3/27. 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.
Sat 11/222:35 pmLGW - KEF
Nonstop3h 10measyJet
Wed 11/265:55 pmKEF - LGW
Nonstop3h 15measyJet
Deal found 3/27$127
This British Airways deal was found by Cheapflights users on 3/25. 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.
Tue 11/187:35 amLHR - KEF
Nonstop3h 20mBritish Airways
Wed 11/1911:45 amKEF - LHR
Nonstop3h 15mBritish Airways
Deal found 3/25$162
This Scandinavian Airlines deal was found by Cheapflights users on 3/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:05 amLHR - KEF
1 stop7h 15mScandinavian Airlines
Mon 11/173:10 pmKEF - LHR
1 stop6h 25mScandinavian Airlines
Deal found 3/27$181
This oojo deal was found by Cheapflights users on 3/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/239:25 pmLHR - KEF
Nonstop3h 10mIcelandair
Wed 4/304:10 pmKEF - LHR
Nonstop3h 10mIcelandair
Deal found 3/26$190
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:55 amLGW - KEF
1 stop25h 10mMultiple Airlines
Tue 5/2012:15 amKEF - LGW
1 stop21h 05mMultiple Airlines
Deal found 3/27$192
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Sun 5/187:25 amLHR - KEF
Nonstop3h 05mMultiple Airlines
Wed 5/2111:05 amKEF - LHR
1 stop6h 45mMultiple Airlines
Deal found 3/27$195
This Icelandair deal was found by Cheapflights users on 3/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:40 pmLGW - KEF
Nonstop3h 15mIcelandair
Mon 9/2210:30 amKEF - LGW
Nonstop3h 10mIcelandair
Deal found 3/27$205
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Wed 4/26:15 amLTN - KEF
Nonstop2h 55mMultiple Airlines
Thu 4/37:10 pmKEF - LTN
1 stop11h 35mMultiple Airlines
Deal found 3/26$213
This Lufthansa deal was found by Cheapflights users on 3/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/104:25 pmLHR - KEF
1 stop8h 45mLufthansa
Thu 5/159:05 amKEF - LHR
2 stops10h 40mLufthansa
Deal found 3/26$251
This SWISS deal was found by Cheapflights users on 3/26. 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.
Sat 5/106:00 amLHR - KEF
1 stop9h 00mSWISS
Sat 5/172:50 pmKEF - LHR
1 stop16h 05mSWISS
Deal found 3/26$261
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Wed 4/29:55 pmLTN - KEF
1 stop11h 35mWizz Air
Thu 4/37:10 pmKEF - LTN
1 stop11h 35mWizz Air
Deal found 3/26$284

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 March 28, 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

LTN - KEF

LTNKEF

London Luton

Wed 9/3

6:15 am-8:10 am

Nonstop2h 55m

Reykjavik Keflavik Intl

Sun 9/7

9:35 am-1:35 pm

Nonstop3h 00m

$135

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sat 5/10

7:35 am-11:35 pm

1 stop17h 00m

Reykjavik Keflavik Intl

Mon 5/12

9:35 am-10:50 pm

1 stop12h 15m

$166

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 4/23

9:25 pm-11:35 pm

Nonstop3h 10m

Reykjavik Keflavik Intl

Wed 4/30

4:10 pm-8:20 pm

Nonstop3h 10m

$190

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Wed 5/7

8:55 am-9:05 am

1 stop25h 10m

Reykjavik Keflavik Intl

Tue 5/20

12:15 am-10:20 pm

1 stop21h 05m

$192

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 6/3

5:30 pm-10:15 am

1 stop17h 45m

Reykjavik Keflavik Intl

Thu 6/5

11:05 am-6:50 pm

1 stop6h 45m

$193

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 5/18

7:25 am-9:30 am

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 5/21

11:05 am-6:50 pm

1 stop6h 45m

$195

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 4/23

7:55 am-10:00 am

Nonstop3h 05m

Reykjavik Keflavik Intl

Sun 4/27

10:20 am-2:30 pm

Nonstop3h 10m

$199

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Fri 9/19

3:40 pm-5:55 pm

Nonstop3h 15m

Reykjavik Keflavik Intl

Mon 9/22

10:30 am-2:40 pm

Nonstop3h 10m

$205

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 5/10

4:25 pm-12:10 am

1 stop8h 45m

Reykjavik Keflavik Intl

Thu 5/15

9:05 am-8:45 pm

2 stops10h 40m

$251

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 5/10

6:00 am-2:00 pm

1 stop9h 00m

Reykjavik Keflavik Intl

Sat 5/17

2:50 pm-7:55 am

1 stop16h 05m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 37 results
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Compare providers for flights from London to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Keflavik Intl in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 July is currently the most expensive (average of $651). 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 March 28, 2025.

It’s optimal to fly from London to Reykjavik Keflavik Intl Airport in the afternoon. By choosing this option you can save up to 37% 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.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 March 28, 2025.
See what other customers who have flown with Norwegian, airBaltic and Finnair from London to Reykjavik have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing
Norwegian
7.9
Good
224 reviews
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing
airBaltic
7.8
Good
178 reviews
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing
Finnair
7.6
Good
1,267 reviews
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing
SWISS
7.5
Good
1,570 reviews
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing
Turkish Airlines
7.3
Good
3,744 reviews
Norwegian
7.9
Good
224 reviews

Crew

8.2

Boarding

7.7

Overall

7.9

Food

6.6

Comfort

7.6

Entertainment

6.2

Reviews

1 / 1
10.0
Excellent

Anonymous,Sep 2024

OSL - LGW

The experience was great, the crew was very helpful and amazing

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 $135. Other airlines that can offer you cheap pricing are Icelandair, from $190, and Scandinavian Airlines, from $193. Users have found that easyJet is 27% 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 $64. However, be on the lookout for offers from Norwegian and British Airways, 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 Qatar Airways (98%), American Airlines (93%) or Qantas Airways (93%) 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 $1,158, our data indicates the cheapest price to be $107. 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 July is currently the most expensive (average of $651). 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

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Keflavik

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Alternative routes for London to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Keflavik Intl flights
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Top 4 airlines flying from London to Keflavik Intl

Discover the top 4 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest$79Average$100FlexibilityNo cancel feeOn-time86%
PLAYCheapest$123Average$167FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$153Average$234FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$156Average$262FlexibilityNo cancel feeOn-time76%
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