HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$108+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Friday or Thursday 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 June 12, 2025.

Round-trip from

$161
(easyJet)

One-way from

$108
(CheapOair)

Popular in

July

Cheapest in

January

Average price

$246

Good round-trip deal

$137 or less

Good one-way deal

$97 or less
From London (LON) to Reykjavik Keflavik Intl
Search Deals
One-way flight from London (LON) to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from London (LON) to Reykjavik Keflavik Intl.
Search Deals

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 June 12, 2025.

This easyJet deal was found by Cheapflights users on 6/10. 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 8/316:50 amLTN - KEF
Nonstop3h 05measyJet
Wed 9/109:00 amKEF - LTN
Nonstop3h 00measyJet
Deal found 6/10$161
This Icelandair deal was found by Cheapflights users on 6/9. 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.
Sun 10/53:40 pmLGW - KEF
Nonstop3h 15mIcelandair
Wed 10/1510:30 amKEF - LGW
Nonstop3h 10mIcelandair
Deal found 6/9$161
This easyJet deal was found by Cheapflights users on 6/10. 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
Tue 11/412:20 pmKEF - LGW
Nonstop3h 10measyJet
Deal found 6/10$166
This British Airways deal was found by Cheapflights users on 6/10. 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.
Sun 11/307:20 amLHR - KEF
Nonstop3h 20mBritish Airways
Sat 12/611:50 amKEF - LHR
Nonstop3h 15mBritish Airways
Deal found 6/10$167
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Mon 9/229:25 pmLHR - KEF
Nonstop3h 10mIcelandair
Thu 10/24:10 pmKEF - LHR
Nonstop3h 10mIcelandair
Deal found 6/11$180
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 10/95:30 pmLHR - KEF
1 stop14h 35mScandinavian Airlines
Mon 10/1311:05 amKEF - LHR
1 stop6h 45mScandinavian Airlines
Deal found 6/10$190
This Connections by easyJet deal was found by Cheapflights users on 6/10. 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 11/128:50 amLTN - KEF
1 stop6h 10mMultiple Airlines
Wed 11/1911:30 amKEF - LTN
Nonstop2h 55mMultiple Airlines
Deal found 6/10$193
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:45 amLGW - KEF
2 stops11h 35mMultiple Airlines
Sun 10/2611:20 amKEF - LGW
Nonstop3h 10mMultiple Airlines
Deal found 6/11$207
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 11/231:45 pmLHR - KEF
Nonstop3h 25mMultiple Airlines
Mon 11/241:00 pmKEF - LHR
1 stop5h 50mMultiple Airlines
Deal found 6/11$244
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Tue 9/303:05 pmLTN - KEF
1 stop8h 45mWizz Air
Tue 10/147:25 pmKEF - LTN
1 stop11h 20mWizz Air
Deal found 6/12$246
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Tue 7/88:55 amLGW - KEF
1 stop10h 20mWizz Air
Tue 7/156:55 pmKEF - LGW
1 stop12h 15mWizz Air
Deal found 6/12$247
This SmartFares deal was found by Cheapflights users on 6/12. 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.
Tue 9/309:20 amLGW - KEF
1 stop11h 00mNorwegian
Tue 10/148:05 pmKEF - LGW
1 stop11h 35mNorwegian
Deal found 6/12$257

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 June 12, 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

Sun 8/31

6:50 am-8:55 am

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 9/10

9:00 am-1:00 pm

Nonstop3h 00m

$161

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sun 10/5

3:40 pm-5:55 pm

Nonstop3h 15m

Reykjavik Keflavik Intl

Wed 10/15

10:30 am-2:40 pm

Nonstop3h 10m

$161

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sun 11/2

7:00 am-10:30 am

Nonstop3h 30m

Reykjavik Keflavik Intl

Tue 11/4

12:20 pm-3:30 pm

Nonstop3h 10m

$166

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 11/30

7:20 am-10:40 am

Nonstop3h 20m

Reykjavik Keflavik Intl

Sat 12/6

11:50 am-3:05 pm

Nonstop3h 15m

$167

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 9/22

9:25 pm-11:35 pm

Nonstop3h 10m

Reykjavik Keflavik Intl

Thu 10/2

4:10 pm-8:20 pm

Nonstop3h 10m

$180

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 10/9

5:30 pm-7:05 am

1 stop14h 35m

Reykjavik Keflavik Intl

Mon 10/13

11:05 am-6:50 pm

1 stop6h 45m

$190

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Wed 11/12

8:50 am-3:00 pm

1 stop6h 10m

Reykjavik Keflavik Intl

Wed 11/19

11:30 am-2:25 pm

Nonstop2h 55m

$193

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Tue 10/21

8:45 am-7:20 pm

2 stops11h 35m

Reykjavik Keflavik Intl

Sun 10/26

11:20 am-2:30 pm

Nonstop3h 10m

$207

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 11/23

1:45 pm-5:10 pm

Nonstop3h 25m

Reykjavik Keflavik Intl

Mon 11/24

1:00 pm-6:50 pm

1 stop5h 50m

$244

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Tue 9/30

3:05 pm-10:50 pm

1 stop8h 45m

Reykjavik Keflavik Intl

Tue 10/14

7:25 pm-7:45 am

1 stop11h 20m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 35 results
1
2
3
4

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 June 9, 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 $659). 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 June 12, 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 41% 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 June 12, 2025.

The most flights from LON to KEF are scheduled on a Wednesday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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 June 12, 2025.
See what other customers who have flown with airBaltic, Norwegian and SWISS 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.
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".
airBaltic
7.8
Good
179 reviews
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".
Norwegian
7.8
Good
233 reviews
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".
SWISS
7.5
Good
1,623 reviews
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".
Scandinavian Airlines
7.3
Good
1,387 reviews
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".
TAP AIR PORTUGAL
7.1
Good
1,885 reviews
airBaltic
7.8
Good
179 reviews

Food

7.5

Entertainment

7.1

Boarding

8.1

Overall

7.8

Comfort

8.0

Crew

8.4

Reviews

1 / 1
4.0
Okay

Mujib,Oct 2022

RIX - CPH

Not fan of Air Canada. Only two things they ever serve for in-flight food. Chicken or Pasta. I traveled many times with them , never heard about anything else from their mouth for food. I call them "cheap chicken pasta airline".

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 $161. Other airlines that can offer you cheap pricing are Icelandair, from $161, and Scandinavian Airlines, from $219. Users have found that easyJet is 17% 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 Norwegian, with whom users have recently found tickets for as low as $108. However, be on the lookout for offers from Scandinavian Airlines and easyJet, 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 Heathrow - Reykjavik Keflavik Intl or London Gatwick - 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%), Turkish Airlines (93%) or American Airlines (92%) 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 $1,059, our data indicates the cheapest price to be $114. 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 $659). 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 London?

Book flights to London if you plan to visit one of these locations
Keflavik

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Keflavik Intl flights
Gatwick to Keflavik Intl flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest$79Average$100FlexibilityNo cancel feeOn-time86%
British AirwaysCheapest$154Average$253FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$156Average$263FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.