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Cheap flights from London to Reykjavik Keflavik Intl Airport from £61

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 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Reykjavik Keflavik Intl are usually found in November or January, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Sunday

Find flight deals from London to Keflavik Intl

Enter your travel dates to find the best prices.

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 14 November 2025.

Thu 11/1213:55LGW - KEF
Nonstop3h 20measyJet
Wed 18/318:05KEF - LGW
Nonstop3h 10measyJet
Deal found 13/11£91
Tue 25/1108:00LGW - KEF
Nonstop3h 30measyJet
Wed 26/1118:05KEF - LGW
Nonstop3h 10measyJet
Deal found 13/11£93
Tue 9/1207:00LTN - KEF
Nonstop3h 15measyJet
Thu 11/1217:40KEF - LTN
Nonstop2h 55measyJet
Deal found 14/11£96
Sun 30/1106:00LTN - KEF
Nonstop3h 15measyJet
Wed 3/1211:55KEF - LTN
Nonstop2h 55measyJet
Deal found 12/11£102
Mon 17/1107:40LGW - KEF
Nonstop3h 30measyJet
Wed 19/1118:05KEF - LGW
Nonstop3h 10measyJet
Deal found 13/11£103
Tue 18/1108:00LGW - KEF
Nonstop3h 30measyJet
Thu 27/1118:05KEF - LGW
Nonstop3h 10measyJet
Deal found 12/11£106
Sat 6/1215:50LTN - KEF
Nonstop3h 15measyJet
Tue 9/1211:05KEF - LTN
Nonstop2h 55measyJet
Deal found 12/11£107
Tue 25/1108:00LGW - KEF
Nonstop3h 30measyJet
Thu 27/1118:05KEF - LGW
Nonstop3h 10measyJet
Deal found 13/11£112
Tue 9/1208:00LGW - KEF
Nonstop3h 30measyJet
Thu 11/1218:05KEF - LGW
Nonstop3h 10measyJet
Deal found 14/11£112
Mon 1/1208:00LTN - KEF
Nonstop3h 15measyJet
Thu 4/1217:55KEF - LTN
Nonstop2h 55measyJet
Deal found 13/11£113
Thu 20/1106:00LTN - KEF
Nonstop3h 15measyJet
Mon 24/1111:55KEF - LTN
Nonstop2h 55measyJet
Deal found 13/11£116
Tue 25/1107:00LTN - KEF
Nonstop3h 15measyJet
Thu 27/1117:55KEF - LTN
Nonstop2h 55measyJet
Deal found 13/11£116

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 14 November 2025.

Round-trip from

£84

One-way from

£61

Popular in

July

Cheapest in

November

Average price

£84

Good round-trip deal

£73 or less

Good one-way deal

£57 or less
easyJet
  • easyJet
  • 2/2-24/2
  • Nonstop
  • 6h 10m total
  • London to Reykjavik
Search Deals
easyJet
  • easyJet
  • 20/3
  • Nonstop
  • 3h 15m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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

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 14 November 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

Thu 8/1

06:00-09:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Mon 12/1

19:35-22:30

Nonstop2h 55m

£85

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sat 21/2

15:50-19:05

Nonstop3h 15m

Reykjavik Keflavik Intl

Fri 27/2

19:40-22:40

Nonstop3h 00m

£86

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sat 7/3

14:25-17:45

Nonstop3h 20m

Reykjavik Keflavik Intl

Tue 10/3

12:20-15:30

Nonstop3h 10m

£87

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Fri 20/3

15:40-18:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Tue 24/3

11:05-14:00

Nonstop2h 55m

£89

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Tue 10/3

07:00-10:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 15/3

10:05-13:00

Nonstop2h 55m

£90

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Thu 11/12

13:55-17:15

Nonstop3h 20m

Reykjavik Keflavik Intl

Wed 18/3

18:05-21:15

Nonstop3h 10m

£91

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Tue 6/1

08:00-11:30

Nonstop3h 30m

Reykjavik Keflavik Intl

Mon 12/1

12:00-15:10

Nonstop3h 10m

£92

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Wed 11/3

08:00-11:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Thu 19/3

09:25-21:55

1 stop12h 30m

£93

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Mon 23/2

15:30-18:45

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 1/3

10:05-13:00

Nonstop2h 55m

£93

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Mon 8/12

07:40-11:10

Nonstop3h 30m

Reykjavik Keflavik Intl

Mon 15/12

12:00-15:10

Nonstop3h 10m

£95

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 60 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 7 November 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, March is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of £37). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £122). 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 14 November 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 31% 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 Thursday afternoons when fares are most often at their lowest. Wednesday evenings 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 14 November 2025.

The most flights from LON to KEF are scheduled on a Thursday (19 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

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 14 November 2025.
Get a feel of what it's like to fly with Icelandair, PLAY, andeasyJet 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.
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Food

6.2

Overall

7.1

Crew

8.0

Entertainment

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
Icelandair
7.1
Good
578 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Food

6.2

Overall

7.1

Crew

8.0

Entertainment

7.0

Boarding

7.2

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
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Food

6.2

Overall

7.1

Crew

8.0

Entertainment

7.0

Boarding

7.2

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
1,842 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Food

6.2

Overall

7.1

Crew

8.0

Entertainment

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
British Airways
6.7
Okay
7,521 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Food

6.2

Overall

7.1

Crew

8.0

Entertainment

7.0

Boarding

7.2

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?

    A quick flight from London to Reykjavik Keflavik Intl Airport can take about 3h 15m. easyJet provides one of the quickest options available for as low as £85. The distance from London to Reykjavik Keflavik Intl Airport is about 1156 mi. Generally, flights for this route are direct.

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

    Currently priced at £48, easyJet will fly you from London to Reykjavik Keflavik Intl Airport and back. In addition to easyJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from PLAY and Icelandair - these airlines can fly you to your destination from £88 and £116, respectively. You may be able to fly from London to Reykjavik Keflavik Intl Airport for 70% less than the average price by searching for these airlines.

  • 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 easyJet, which is currently one of the cheapest options available, starting at £62. Icelandair flights start at £70 while deals on British Airways start at £81 one-way.

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

    Most travelers choose London Heathrow - Reykjavik Keflavik Intl, London Gatwick - Reykjavik Keflavik Intl or London Luton - Reykjavik Keflavik Intl when deciding on the best route 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 American Airlines (91%), Icelandair (87%) or Air India (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?

    The cheapest flight price from London to Reykjavik Keflavik Intl Airport is £115. On average you can expect to pay £917. The most popular route, (London Heathrow - Reykjavik Keflavik Intl), can usually be booked for £104.

  • 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, March is the cheapest month in which you can book a flight from London to Reykjavik Keflavik Intl Airport (average of £37). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £122). 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 Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport 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 14 November 2025.
easyJet flights from London to Reykjavik Keflavik Intl
PLAY flights from London to Reykjavik Keflavik Intl

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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£48Average£111FlexibilityNo cancel feeOn-time86%
Search easyJet flights
PLAYCheapest£88Average£233FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£116Average£238FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£120Average£233FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£138Average£264FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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