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Cheap flights from London to Reykjavik Keflavik Intl Airport from £78

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
8 Jul — 15 Jul1
1 adult

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 Tuesday or Wednesday 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 3 July 2025.

Round-trip from

£159

One-way from

£78

Popular in

July

Cheapest in

January

Average price

£238

Good round-trip deal

£64 or less

Good one-way deal

£42 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/11-10/11
  • 3 total stops
  • 22h 15m total
  • London to Reykjavik
British Airways
  • British Airways
  • 11/11
  • Nonstop
  • 3h 20m total
  • London to Reykjavik
Highest demand for flights based on searches. 34% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£7 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to Reykjavik Keflavik Intl.
Price to beat on a one-way flight from London (LON) to Reykjavik Keflavik Intl.

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 3 July 2025.

Wed 5/1121:05LHR - KEF
2 stops13h 40mScandinavian Airlines
Mon 10/1113:00KEF - LHR
1 stop8h 35mScandinavian Airlines
Deal found 1/7£159
Tue 2/921:25LHR - KEF
Nonstop3h 10mIcelandair
Wed 10/916:10KEF - LHR
Nonstop3h 10mIcelandair
Deal found 1/7£160
Tue 25/1108:00LGW - KEF
Nonstop3h 30mMultiple Airlines
Wed 26/1100:45KEF - LGW
1 stop11h 10mMultiple Airlines
Deal found 1/7£160
Tue 26/811:40STN - KEF
Nonstop3h 05mPLAY
Tue 2/906:40KEF - STN
Nonstop3h 00mPLAY
Deal found 1/7£160
Tue 23/1207:00LTN - KEF
Nonstop3h 15measyJet
Sun 4/110:05KEF - LTN
Nonstop2h 55measyJet
Deal found 2/7£162
Sun 23/1107:00LGW - KEF
Nonstop3h 30measyJet
Sun 30/1111:20KEF - LGW
Nonstop3h 10measyJet
Deal found 2/7£162
Tue 25/1107:35LHR - KEF
Nonstop3h 20mMultiple Airlines
Thu 27/1111:30KEF - LHR
1 stop6h 10mMultiple Airlines
Deal found 1/7£163
Fri 10/1021:55LTN - KEF
1 stop11h 35mMultiple Airlines
Sun 19/1009:35KEF - LTN
Nonstop3h 00mMultiple Airlines
Deal found 2/7£163
Wed 3/915:40LGW - KEF
Nonstop3h 15mIcelandair
Sun 7/907:35KEF - LGW
Nonstop3h 10mIcelandair
Deal found 1/7£165
Tue 26/807:05STN - KEF
1 stop12h 10mMultiple Airlines
Thu 28/806:40KEF - STN
Nonstop3h 00mMultiple Airlines
Deal found 2/7£169
Wed 20/821:55LTN - KEF
1 stop11h 35mWizz Air
Wed 10/920:55KEF - LTN
1 stop9h 50mWizz Air
Deal found 2/7£184
Tue 25/1108:50STN - KEF
1 stop7h 35measyJet
Thu 27/1109:25KEF - STN
1 stop6h 30measyJet
Deal found 1/7£188

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 3 July 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

LHR - KEF

LHRKEF

London Heathrow

Wed 5/11

21:05-10:45

2 stops13h 40m

Reykjavik Keflavik Intl

Mon 10/11

13:00-21:35

1 stop8h 35m

£159

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 2/9

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Wed 10/9

16:10-20:20

Nonstop3h 10m

£160

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Mon 3/11

07:40-11:10

Nonstop3h 30m

Reykjavik Keflavik Intl

Wed 19/11

18:05-21:15

Nonstop3h 10m

£160

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Tue 26/8

11:40-13:45

Nonstop3h 05m

Reykjavik Keflavik Intl

Tue 2/9

06:40-10:40

Nonstop3h 00m

£160

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Mon 3/11

06:55-19:40

2 stops12h 45m

Reykjavik Keflavik Intl

Fri 7/11

19:15-22:25

Nonstop3h 10m

£161

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Tue 23/12

07:00-10:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 4/1

10:05-13:00

Nonstop2h 55m

£162

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 25/11

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Thu 27/11

11:30-17:40

1 stop6h 10m

£163

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Fri 10/10

21:55-08:30

1 stop11h 35m

Reykjavik Keflavik Intl

Sun 19/10

09:35-13:35

Nonstop3h 00m

£163

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Wed 3/9

15:40-17:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 7/9

07:35-11:45

Nonstop3h 10m

£165

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Tue 26/8

07:05-18:15

1 stop12h 10m

Reykjavik Keflavik Intl

Thu 28/8

06:40-10:40

Nonstop3h 00m

£169

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 45 results
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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 return 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 return flight from London to Keflavik Intl. Price data was last updated on 27 June 2025.

The best time to book flights from London to Reykjavik Keflavik Intl Airport is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of £75). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £289). 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 3 July 2025.

A simple way to save on the total cost of your ticket is to fly from London to Reykjavik Keflavik Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight at midday.

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

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

Travellers seeking maximum savings on their London to Reykjavik Keflavik Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday at midday 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 3 July 2025.

The most flights from LON to KEF are scheduled on a Wednesday (16 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight 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 3 July 2025.
Get a feel of what it's like to fly with KLM, Norwegian, andLOT from London to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    Currently priced at £159, Scandinavian Airlines will fly you from London to Reykjavik Keflavik Intl Airport and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and PLAY - these airlines can fly you to your destination from £160 and £160, respectively.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £78. easyJet flights start at £79 while deals on Scandinavian Airlines start at £80 one-way.

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

  • 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?

    The cheapest flight price from London to Reykjavik Keflavik Intl Airport is £139. On average you can expect to pay £979. The most popular route, (London Heathrow - Reykjavik Keflavik Intl), can usually be booked for £124.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of £75). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £289). 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

Travelling to a place near London?

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

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Fly from London to Keflavik Intl on these airlines

Choose from the following airlines for your flight from London to Keflavik Intl. Flights are based on user searches made on Cheapflights and were last updated on 3 July 2025.

Top 5 airlines flying from London to Keflavik Intl

Discover the top 5 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 858,174 searches. Data last updated 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£48Average£99FlexibilityNo cancel feeOn-time86%
Search easyJet flights
PLAYCheapest£74Average£141FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£112Average£223FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£113Average£191FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£133Average£268FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

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How does Cheapflights help users find flights from London to Keflavik Intl?

Deals for London to Keflavik Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Keflavik Intl?

Cheapflights simply makes it quick and affordable to book flights from London to Keflavik Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Keflavik Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Keflavik Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Keflavik Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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