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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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
27 Jun — 4 Jul1
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 90 days in advance, depart on a Tuesday or Sunday and return on a Saturday

Cheap 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 28 May 2026.

Mon 9/1115:30
LTN
-
KEF
Nonstop3h 15m
Multiple Airlines
Mon 16/1110:30
KEF
-
LTN
1 stop9h 15m
Multiple Airlines
Deal found 24/5£171
Tue 3/1120:35
LHR
-
KEF
Nonstop3h 20m
Icelandair
Wed 11/1107:35
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 25/5£171
Wed 9/906:15
LTN
-
KEF
Nonstop3h 05m
Multiple Airlines
Sun 13/919:00
KEF
-
LTN
1 stop18h 35m
Multiple Airlines
Deal found 24/5£171
Tue 3/1107:55
STN
-
KEF
1 stop12h 10m
Multiple Airlines
Wed 11/1118:20
KEF
-
STN
2 stops24h 10m
Multiple Airlines
Deal found 25/5£171
Mon 22/617:45
LTN
-
KEF
Nonstop3h 05m
easyJet
Mon 29/620:30
KEF
-
LTN
Nonstop2h 55m
easyJet
Deal found 25/5£172
Wed 19/819:50
LHR
-
KEF
1 stop14h 05m
Scandinavian Airlines
Sat 22/819:45
KEF
-
LHR
1 stop12h 50m
Scandinavian Airlines
Deal found 24/5£173
Sun 31/520:35
LTN
-
KEF
1 stop22h 05m
Multiple Airlines
Thu 4/618:45
KEF
-
LTN
1 stop12h 00m
Multiple Airlines
Deal found 25/5£173
Wed 11/1113:55
LGW
-
KEF
Nonstop3h 20m
easyJet
Thu 19/1118:05
KEF
-
LGW
Nonstop3h 10m
easyJet
Deal found 24/5£173
Sat 11/716:35
LTN
-
KEF
Nonstop3h 05m
easyJet
Mon 13/720:30
KEF
-
LTN
Nonstop2h 55m
easyJet
Deal found 24/5£174
Tue 10/1108:00
LGW
-
KEF
Nonstop3h 30m
easyJet
Thu 19/1112:30
KEF
-
LGW
1 stop9h 20m
easyJet
Deal found 24/5£174
Mon 5/1014:20
LGW
-
KEF
Nonstop3h 20m
easyJet
Mon 19/1018:40
KEF
-
LGW
Nonstop3h 15m
easyJet
Deal found 25/5£174
Tue 25/819:50
LHR
-
KEF
1 stop16h 25m
Scandinavian Airlines
Sat 29/819:45
KEF
-
LHR
1 stop12h 50m
Scandinavian Airlines
Deal found 25/5£175

Find 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 28 May 2026.

Round-trip from

£171

One-way from

£78

Popular in

July

Cheapest in

November

Average price

£191

Good round-trip deal

£115 or less

Good one-way deal

£167 or less
Wizz Air
  • Wizz Air
  • 9/11-16/11
  • 1 total stop
  • 12h 30m total
  • London to Reykjavik
Search Deals
Wizz Air
  • Wizz Air
  • 3/6
  • 1 total stop
  • 12h 45m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£9 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 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 28 May 2026.
Use the filters below to find and compare flights from London to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Mon 5/10

14:20-16:40

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 19/10

18:40-22:55

Nonstop3h 15m

£174
Fastest return journey

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 7/6

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 10/6

09:00-12:55

Nonstop2h 55m

£179

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 7/6

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 22/6

20:30-00:25

Nonstop2h 55m

£180

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sat 11/7

16:35-18:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Fri 17/7

19:30-23:25

Nonstop2h 55m

£182

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 24/10

15:35-11:40

1 stop21h 05m

Reykjavik Keflavik Intl

Wed 28/10

11:30-18:50

1 stop7h 20m

£183

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 14/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Tue 17/11

07:35-10:50

Nonstop3h 15m

£187

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sat 11/7

16:35-18:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 13/7

20:30-00:25

Nonstop2h 55m

£189

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sat 20/6

16:35-18:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 6/7

20:30-00:25

Nonstop2h 55m

£191

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Fri 26/6

16:30-18:35

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 29/6

20:30-00:25

Nonstop2h 55m

£192

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 3/11

19:50-10:45

1 stop14h 55m

Reykjavik Keflavik Intl

Fri 6/11

18:05-09:20

1 stop15h 15m

£195

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 £37). Flying from London to Reykjavik Keflavik Intl Airport in November is currently the most expensive (average of £147). 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 28 May 2026.

A simple way to save on the total cost of your ticket is to fly from London to Reykjavik Keflavik Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight at midday.

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 28 May 2026.

The most flights from LON to KEF are scheduled on a Thursday (23 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

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

How often are flights from London to Reykjavik delayed?

About 10% of weekly flights between London and Reykjavik have experienced delays in the past year, with the average delay time being 112 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon 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 Wednesday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 8% of flights being delayed.

How far ahead should I book a flight from London to Reykjavik Keflavik Intl Airport?

The best time to book flights from London to Reykjavik Keflavik Intl Airport is 90 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 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 23 May 2026.

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. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 28 May 2026.
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
7.0
Good
661 reviews
Check prices

Boarding

7.2

Food

6.1

Overall

7.0

Entertainment

6.9

Crew

8.0

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
Icelandair
7.0
Good
661 reviews
Icelandair
7.0
Good
661 reviews
Check prices

Boarding

7.2

Food

6.1

Overall

7.0

Entertainment

6.9

Crew

8.0

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
PLAY
7.0
Good
Icelandair
7.0
Good
661 reviews
Check prices

Boarding

7.2

Food

6.1

Overall

7.0

Entertainment

6.9

Crew

8.0

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
easyJet
6.9
Okay
1,902 reviews
Icelandair
7.0
Good
661 reviews
Check prices

Boarding

7.2

Food

6.1

Overall

7.0

Entertainment

6.9

Crew

8.0

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
British Airways
6.7
Okay
8,008 reviews
Icelandair
7.0
Good
661 reviews
Check prices

Boarding

7.2

Food

6.1

Overall

7.0

Entertainment

6.9

Crew

8.0

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.

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 20m. easyJet provides one of the quickest options available for as low as £174. The distance from London to Reykjavik Keflavik Intl Airport is about 1202 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at £54, 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 Icelandair and British Airways - these airlines can fly you to your destination from £119 and £126, respectively. You may be able to fly from London to Reykjavik Keflavik Intl Airport for 71% less than the average price by searching for these airlines.

  • 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 City - 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 TAP AIR PORTUGAL (87%), Japan Airlines (85%) or Qatar Airways (84%) 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 £126. On average you can expect to pay £822. The most popular route, (London Heathrow - Reykjavik Keflavik Intl), can usually be booked for £159.

  • 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 £37). Flying from London to Reykjavik Keflavik Intl Airport in November is currently the most expensive (average of £147). 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 28 May 2026.
easyJet 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 28 May 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£54Average£118FlexibilityNo cancel feeOn-time86%
Search easyJet flights
IcelandairCheapest£119Average£269FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£126Average£240FlexibilityNo cancel feeOn-time70%
Search British Airways flights
PLAYCheapest£127Average£237FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Scandinavian AirlinesCheapest£188Average£351FlexibilityNo 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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