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Cheap flights from Reykjavik Keflavik Intl Airport to London from £43

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.
KEF — LON
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Keflavik Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to London (LON). 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 16 January 2026.

Round-trip from

£57

One-way from

£43

Popular in

July

Cheapest in

February

Average price

£144

Good round-trip deal

£31 or less

Good one-way deal

£101 or less
easyJet
  • easyJet
  • 19/3-25/3
  • Nonstop
  • 6h 10m total
  • Reykjavik to London
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easyJet
  • easyJet
  • 20/3
  • Nonstop
  • 3h 00m total
  • Reykjavik to London
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Highest demand for flights based on searches. 25% potential increase in price (£44 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Reykjavik Keflavik Intl to London (LON).
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to London (LON).
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Find flight deals from Keflavik Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Keflavik Intl to London
Explore the most affordable flight options available from Keflavik Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2026.

Thu 19/317:55
KEF
-
LTN
Nonstop2h 55m
easyJet
Wed 25/308:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 14/1£57
Wed 18/311:55
KEF
-
LTN
Nonstop2h 55m
easyJet
Wed 25/308:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£60
Tue 17/311:05
KEF
-
LTN
Nonstop2h 55m
easyJet
Tue 24/307:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£65
Wed 18/311:55
KEF
-
LTN
Nonstop2h 55m
easyJet
Thu 26/314:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£67
Thu 19/318:05
KEF
-
LGW
Nonstop3h 10m
easyJet
Wed 25/313:55
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 14/1£68
Thu 12/317:55
KEF
-
LTN
Nonstop2h 55m
easyJet
Wed 25/308:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£69
Tue 17/311:05
KEF
-
LTN
Nonstop2h 55m
easyJet
Thu 26/314:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£72
Fri 13/319:15
KEF
-
LGW
Nonstop3h 10m
easyJet
Wed 25/313:55
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 13/1£73
Wed 18/318:05
KEF
-
LGW
Nonstop3h 10m
easyJet
Wed 25/313:55
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 13/1£75
Thu 12/318:05
KEF
-
LGW
Nonstop3h 10m
easyJet
Wed 25/313:55
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 13/1£75
Wed 18/311:55
KEF
-
LTN
Nonstop2h 55m
easyJet
Sun 22/306:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£75
Mon 16/319:35
KEF
-
LTN
Nonstop2h 55m
easyJet
Wed 25/308:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 13/1£76

Cheapflights Fare Finder

 
Customise your flight search to find flights from Keflavik Intl to London 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 16 January 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to London that are best for you.

Fly from

Keflavik Intl

Fly to

London

Route

Depart

Return

Price

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 19/3

17:55-20:50

Nonstop2h 55m

London Luton

Wed 25/3

08:00-11:15

Nonstop3h 15m

£57

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Wed 18/3

11:55-14:50

Nonstop2h 55m

London Luton

Tue 24/3

07:00-10:15

Nonstop3h 15m

£60

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Tue 17/3

11:05-14:00

Nonstop2h 55m

London Luton

Wed 25/3

08:00-11:15

Nonstop3h 15m

£65

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Tue 17/3

11:05-14:00

Nonstop2h 55m

London Luton

Tue 24/3

07:00-10:15

Nonstop3h 15m

£65

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Wed 18/3

11:55-14:50

Nonstop2h 55m

London Luton

Thu 26/3

14:00-17:15

Nonstop3h 15m

£67

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Thu 19/3

18:05-21:15

Nonstop3h 10m

London Gatwick

Wed 25/3

13:55-17:15

Nonstop3h 20m

£68

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 12/3

17:55-20:50

Nonstop2h 55m

London Luton

Tue 24/3

07:00-10:15

Nonstop3h 15m

£69

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Tue 17/3

11:05-14:00

Nonstop2h 55m

London Luton

Thu 26/3

14:00-17:15

Nonstop3h 15m

£72

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Fri 13/3

19:15-22:25

Nonstop3h 10m

London Gatwick

Wed 25/3

13:55-17:15

Nonstop3h 20m

£73

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Wed 18/3

18:05-21:15

Nonstop3h 10m

London Gatwick

Wed 25/3

13:55-17:15

Nonstop3h 20m

£75

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 60 results
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Best time to book a flight from Keflavik Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to London

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

Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £123). Flying from Reykjavik Keflavik Intl Airport to London in September is currently the most expensive (average of £268). 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 KEF to LON?

Find hourly flight availability from Keflavik Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 January 2026.

When flying from Reykjavik Keflavik Intl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Reykjavik Keflavik Intl Airport to London

Explore weekly flight availability from Keflavik Intl to London. 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 16 January 2026.

The most flights from KEF to LON are scheduled on a Wednesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight from Reykjavik Keflavik Intl Airport to London?

How often are flights from Reykjavik to London delayed?

About 11% of weekly flights between Reykjavik and London have experienced delays in the past year, with the average delay time being 110 minutes.

What is the most punctual flight time for Reykjavik to London flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Reykjavik to London flights?

Over the past year, CAA have had the lowest number of delays on this route, with just 7% of flights being delayed.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 16 January 2026.
Read reviews from past customers who have flown with Icelandair from Reykjavik Keflavik Intl Airport to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
596 reviews
Check prices

Overall

7.1

Food

6.2

Entertainment

7.0

Boarding

7.2

Crew

8.0

Comfort

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.1
Good
596 reviews
Icelandair
7.1
Good
596 reviews
Check prices

Overall

7.1

Food

6.2

Entertainment

7.0

Boarding

7.2

Crew

8.0

Comfort

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to London. 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 Reykjavik Keflavik Intl Airport to London?

    Departing from Reykjavik Keflavik Intl Airport to London will take you 2h 55m. The distance from Reykjavik Keflavik Intl Airport to London is about 1156 mi. Generally, flights for this route are direct.

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

    The most popular flight routes from Reykjavik Keflavik Intl Airport to London are Reykjavik Keflavik Intl - London Gatwick, Reykjavik Keflavik Intl - London Luton and Reykjavik Keflavik Intl - London Stansted.

  • What are the most reliable airlines from Reykjavik Keflavik Intl Airport to London?

    The top 3 most reliable airlines when flying from Reykjavik Keflavik Intl Airport to London are Turkish Airlines (87%), Icelandair (85%) and Air India (85%).

  • What are the cheapest flights from Reykjavik Keflavik Intl Airport to London?

    Looking for the cheapest flight from Reykjavik Keflavik Intl Airport to London? While on average our users pay £262, our data indicates the cheapest price to be £67. The most popular route (Reykjavik Keflavik Intl - London Gatwick), is priced around £69.

  • Can I find deals for flights from Keflavik Intl to London that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to London.

  • Can I find deals for business class flights from Keflavik Intl to London?

    Yes. Cheapflights offers flight deals from Keflavik Intl to London 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 Reykjavik Keflavik Intl Airport to London?

    Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £123). Flying from Reykjavik Keflavik Intl Airport to London in September is currently the most expensive (average of £268). 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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