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Cheap flights from Reykjavik Keflavik Intl Airport to London from £91

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LON
28 Jun — 5 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 29 May 2026.

Mon 26/1019:35
KEF
-
LTN
Nonstop2h 55m
easyJet
Tue 3/1107:00
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 28/5£101
Thu 19/1110:00
KEF
-
LTN
Nonstop2h 55m
easyJet
Mon 23/1115:30
LTN
-
KEF
Nonstop3h 15m
easyJet
Deal found 27/5£106
Tue 10/1112:20
KEF
-
LGW
Nonstop3h 10m
easyJet
Sat 14/1114:25
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 25/5£130
Thu 1/1017:35
KEF
-
LGW
Nonstop3h 15m
easyJet
Mon 5/1014:20
LGW
-
KEF
Nonstop3h 20m
easyJet
Deal found 26/5£136
Mon 26/1012:00
KEF
-
LGW
Nonstop3h 10m
easyJet
Tue 3/1108:00
LGW
-
KEF
Nonstop3h 30m
easyJet
Deal found 28/5£136
Mon 26/1019:35
KEF
-
LTN
Nonstop2h 55m
Multiple Airlines
Tue 3/1108:20
LTN
-
KEF
1 stop11h 45m
Multiple Airlines
Deal found 28/5£144
Sun 27/909:10
KEF
-
LTN
Nonstop2h 55m
easyJet
Sun 4/1006:25
LTN
-
KEF
Nonstop3h 05m
easyJet
Deal found 25/5£151
Sat 20/619:20
KEF
-
LTN
Nonstop2h 55m
easyJet
Mon 22/617:45
LTN
-
KEF
Nonstop3h 05m
easyJet
Deal found 25/5£160
Mon 26/1011:35
KEF
-
LHR
1 stop22h 00m
Multiple Airlines
Tue 3/1120:35
LHR
-
KEF
Nonstop3h 20m
Multiple Airlines
Deal found 28/5£174
Tue 10/1114:45
KEF
-
LHR
1 stop18h 15m
KLM
Sat 14/1106:30
LHR
-
KEF
1 stop7h 15m
KLM
Deal found 25/5£178
Thu 19/1114:45
KEF
-
LHR
1 stop16h 55m
KLM
Mon 23/1106:30
LHR
-
KEF
1 stop7h 15m
KLM
Deal found 27/5£179
Tue 10/1111:35
KEF
-
LHR
1 stop10h 05m
Multiple Airlines
Sat 14/1120:35
LHR
-
KEF
Nonstop3h 20m
Multiple Airlines
Deal found 25/5£180

Find 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 29 May 2026.

Round-trip from

£101

One-way from

£91

Popular in

July

Cheapest in

November

Average price

£236

Good round-trip deal

£304 or less

Good one-way deal

£177 or less
easyJet
  • easyJet
  • 26/10-3/11
  • Nonstop
  • 6h 10m total
  • Reykjavik to London
Search Deals
12/8
  • 12/8
  • 1 total stop
  • 10h 40m total
  • Reykjavik to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Reykjavik Keflavik Intl to London (LON).
Search Deals
Price to beat on a one-way flight from Reykjavik Keflavik Intl to London (LON).
Search Deals

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 29 May 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Mon 26/10

19:35-22:30

Nonstop2h 55m

London Luton

Tue 3/11

07:00-10:15

Nonstop3h 15m

£101

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 19/11

10:00-12:55

Nonstop2h 55m

London Luton

Mon 23/11

15:30-18:45

Nonstop3h 15m

£106

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Thu 1/10

17:35-21:50

Nonstop3h 15m

London Gatwick

Mon 5/10

14:20-16:40

Nonstop3h 20m

£136

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Mon 26/10

12:00-15:10

Nonstop3h 10m

London Gatwick

Tue 3/11

08:00-11:30

Nonstop3h 30m

£136

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Mon 26/10

11:55-14:50

Nonstop2h 55m

London Luton

Tue 3/11

08:20-20:05

1 stop11h 45m

£148

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Sat 20/6

19:20-23:15

Nonstop2h 55m

London Luton

Mon 22/6

07:15-20:10

1 stop13h 55m

£182

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Mon 26/10

19:50-21:20

2 stops25h 30m

London Stansted

Tue 3/11

07:55-20:05

1 stop12h 10m

£186
Fastest return journey

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Mon 6/7

20:30-00:25

Nonstop2h 55m

London Luton

Sat 11/7

16:35-18:40

Nonstop3h 05m

£186

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 18/6

09:00-19:55

1 stop9h 55m

London Luton

Mon 22/6

16:30-09:00

2 stops17h 30m

£196

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 1/10

09:00-19:55

1 stop9h 55m

London Luton

Wed 7/10

06:15-08:20

Nonstop3h 05m

£203

Flights are sorted by cheapest return flights first.

Deals found on 26/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £56). Flying from Reykjavik Keflavik Intl Airport to London in July is currently the most expensive (average of £164). 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 29 May 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 29 May 2026.

The most flights from KEF to LON are scheduled on a Thursday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 10% of weekly flights between Reykjavik and London have experienced delays in the past year, with the average delay time being 116 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?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday 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, Icelandair have had the lowest number of delays on this route, with just 8% of flights being delayed.

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. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Heathrow, Reykjavik Keflavik Intl - London Stansted and Reykjavik Keflavik Intl - London City.

  • 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 Japan Airlines (88%), Turkish Airlines (86%) and Icelandair (86%).

  • 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 £313, our data indicates the cheapest price to be £112. The most popular route (Reykjavik Keflavik Intl - London Heathrow), is priced around £164.

  • 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, October is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £56). Flying from Reykjavik Keflavik Intl Airport to London in July is currently the most expensive (average of £164). 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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When you search for this flight from Keflavik Intl to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Yes! Cheapflights helps users easily find flights from Keflavik Intl to London with no change fees.

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

Yes! Start tracking prices for Keflavik Intl to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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