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Keflavik Intl

$86+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 Sunday 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 September 15, 2025.

Round-trip from

$144
(easyJet)

One-way from

$86
(Connections by easyJet)

Popular in

July

Cheapest in

January

Average price

$202

Good round-trip deal

$180 or less

Good one-way deal

$104 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. 31% potential increase in price ($93 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This easyJet deal was found by Cheapflights users on 9/15. 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.
Tue 11/48:00 amLGW - KEF
Nonstop3h 30measyJet
Sat 11/86:35 pmKEF - LGW
Nonstop3h 10measyJet
Deal found 9/15$144
This easyJet deal was found by Cheapflights users on 9/15. 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 11/51:55 pmLGW - KEF
Nonstop3h 20measyJet
Mon 11/1012:00 pmKEF - LGW
Nonstop3h 10measyJet
Deal found 9/15$145
This easyJet deal was found by Cheapflights users on 9/15. 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.
Thu 10/302:00 pmLTN - KEF
Nonstop3h 15measyJet
Wed 11/511:55 amKEF - LTN
Nonstop2h 55measyJet
Deal found 9/15$147
This Connections by easyJet deal was found by Cheapflights users on 9/15. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:00 pmLTN - KEF
Nonstop3h 15measyJet
Thu 11/69:25 amKEF - LTN
1 stop12h 30measyJet
Deal found 9/15$148
This easyJet deal was found by Cheapflights users on 9/14. 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.
Thu 11/132:00 pmLTN - KEF
Nonstop3h 15measyJet
Sun 11/1610:05 amKEF - LTN
Nonstop2h 55measyJet
Deal found 9/14$149
This easyJet deal was found by Cheapflights users on 9/14. 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.
Mon 11/37:40 amLGW - KEF
Nonstop3h 30measyJet
Fri 11/77:15 pmKEF - LGW
Nonstop3h 10measyJet
Deal found 9/14$149
This Connections by easyJet deal was found by Cheapflights users on 9/15. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:00 amLTN - KEF
Nonstop3h 15measyJet
Thu 11/69:25 amKEF - LTN
1 stop12h 30measyJet
Deal found 9/15$150
This easyJet deal was found by Cheapflights users on 9/14. 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.
Sun 11/27:00 amLGW - KEF
Nonstop3h 30measyJet
Wed 11/56:05 pmKEF - LGW
Nonstop3h 10measyJet
Deal found 9/14$150
This Connections by easyJet deal was found by Cheapflights users on 9/14. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:00 amLTN - KEF
Nonstop3h 15measyJet
Tue 11/185:05 pmKEF - LTN
1 stop15h 10measyJet
Deal found 9/14$151
This Connections by easyJet deal was found by Cheapflights users on 9/15. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:40 amLGW - KEF
Nonstop3h 30measyJet
Fri 11/147:45 pmKEF - LGW
1 stop12h 05measyJet
Deal found 9/15$151
This easyJet deal was found by Cheapflights users on 9/14. 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 12/203:50 pmLTN - KEF
Nonstop3h 15measyJet
Sun 12/2110:05 amKEF - LTN
Nonstop2h 55measyJet
Deal found 9/14$152
This easyJet deal was found by Cheapflights users on 9/14. 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.
Fri 12/193:40 pmLTN - KEF
Nonstop3h 15measyJet
Sun 12/2110:05 amKEF - LTN
Nonstop2h 55measyJet
Deal found 9/14$153

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 September 15, 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

Mon 2/23

8:00 am-11:15 am

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 3/1

10:05 am-1:00 pm

Nonstop2h 55m

$148

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Thu 10/30

2:00 pm-5:15 pm

Nonstop3h 15m

Reykjavik Keflavik Intl

Thu 11/6

9:25 am-9:55 pm

1 stop12h 30m

$148

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Wed 2/4

8:00 am-11:15 am

Nonstop3h 15m

Reykjavik Keflavik Intl

Wed 2/11

11:50 am-10:35 pm

1 stop10h 45m

$148

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Thu 11/13

2:00 pm-5:15 pm

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 11/16

10:05 am-1:00 pm

Nonstop2h 55m

$149

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 1/18

6:00 am-9:15 am

Nonstop3h 15m

Reykjavik Keflavik Intl

Fri 1/23

11:40 am-10:10 pm

1 stop10h 30m

$150

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Fri 1/16

3:40 pm-6:55 pm

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 1/18

11:10 am-10:25 pm

1 stop11h 15m

$150

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Fri 11/7

3:00 pm-6:20 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Fri 11/14

7:45 pm-7:50 am

1 stop12h 05m

$150

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Mon 11/10

7:40 am-11:10 am

Nonstop3h 30m

Reykjavik Keflavik Intl

Fri 11/14

7:45 pm-7:50 am

1 stop12h 05m

$152

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Fri 11/21

3:00 pm-6:20 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Sat 11/29

6:35 pm-9:45 pm

Nonstop3h 10m

$152

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sat 2/7

2:25 pm-5:45 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Tue 2/17

12:20 pm-3:30 pm

Nonstop3h 10m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 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
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
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
Our travel experts
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
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

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 September 12, 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 $656). 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 September 15, 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 34% 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 September 15, 2025.

The most flights from LON to KEF are scheduled on a Friday (20 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 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 September 15, 2025.
Peruse reviews from past customers who have flown with Icelandair, PLAY, and easyJet 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.
Icelandair
7.0
Good
544 reviews

Crew

8.0

Entertainment

7.0

Overall

7.0

Boarding

7.2

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
Icelandair
7.0
Good
544 reviews
Icelandair
7.0
Good
544 reviews

Crew

8.0

Entertainment

7.0

Overall

7.0

Boarding

7.2

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
PLAY
7.0
Good
103 reviews
Icelandair
7.0
Good
544 reviews

Crew

8.0

Entertainment

7.0

Overall

7.0

Boarding

7.2

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
easyJet
6.9
Okay
1,820 reviews
Icelandair
7.0
Good
544 reviews

Crew

8.0

Entertainment

7.0

Overall

7.0

Boarding

7.2

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.

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.

  • How long is the flight from London to Reykjavik Keflavik Intl Airport?

    For as low as $148, easyJet can have you in Reykjavik Keflavik Intl Airport from London in 3h 15m. London and Reykjavik Keflavik Intl Airport are separated by a distance of 1156 mi. Generally, flights for this route are nonstop.

  • 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 $79. Other airlines that can offer you cheap pricing are British Airways, from $153, and Icelandair, from $156. Users have found that easyJet is 60% 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 $86. However, be on the lookout for offers from Wizz Air and Icelandair, 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 American Airlines (87%), Qatar Airways (87%) or Japan Airlines (87%) 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 $1,371, our data indicates the cheapest price to be $123. 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 $656). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest$79Average$82FlexibilityNo cancel feeOn-time86%
British AirwaysCheapest$153Average$225FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$156Average$277FlexibilityNo cancel feeOn-time76%

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