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Cheap flights from London to Reykjavik Keflavik Intl Airport from £86

LON — KEF
7 Oct — 14 Oct1
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 75 days in advance, depart on a Sunday or Monday and return on a Sunday

Cheap flight deals from London to Keflavik Intl

Enter your travel dates to find the best prices.

Cheapest flights from London to Keflavik Intl

Thu 29/1008:25 -
1 stop11h 05m
Wed 4/1112:05 -
Nonstop3h 00m
Deal found 4/9£148
Sat 28/1120:35 -
Nonstop3h 15m
Sat 5/1216:20 -
Nonstop3h 10m
Deal found 3/9£148
Sat 31/1017:55 -
1 stop16h 20m
Mon 2/1111:55 -
Nonstop3h 15m
Deal found 5/9£148
Thu 12/1108:05 -
Nonstop3h 00m
Mon 16/1112:00 -
Nonstop2h 55m
Deal found 4/9£148
Sun 4/1021:55 -
1 stop11h 00m
Tue 13/1019:55 -
1 stop10h 40m
Deal found 4/9£149
Mon 23/1120:35 -
Nonstop3h 15m
Sat 5/1216:20 -
Nonstop3h 10m
Deal found 3/9£149
Tue 3/1120:15 -
1 stop14h 45m
Sun 8/1121:45 -
2 stops13h 15m
Deal found 7/9£149
Wed 14/1021:20 -
1 stop12h 00m
Mon 26/1020:10 -
2 stops14h 10m
Deal found 5/9£149
Sun 4/1021:55 -
1 stop11h 00m
Wed 7/1019:55 -
1 stop10h 40m
Deal found 4/9£149
Sat 21/1120:35 -
Nonstop3h 15m
Sun 22/1107:35 -
Nonstop3h 15m
Deal found 6/9£149
Tue 6/1006:15 -
1 stop11h 30m
Tue 13/1019:20 -
1 stop17h 35m
Deal found 4/9£149
Thu 5/1108:20 -
1 stop11h 45m
Sun 8/1120:45 -
1 stop10h 50m
Deal found 6/9£150

Find flight deals from London to Keflavik Intl

Round-trip from

£148

One-way from

£86

Popular in

July

Cheapest in

November

Average price

£234

Good round-trip deal

£104 or less

Good one-way deal

£100 or less
Icelandair
  • Icelandair
  • 28/11-5/12
  • Nonstop
  • 6h 25m total
  • London to Reykjavik
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easyJet
  • easyJet
  • 13/9-31/12
  • Nonstop
  • 3h 05m total
  • London to Reykjavik
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Highest demand for flights based on searches. 31% potential increase in price (£70 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from London (LON) to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from London (LON) to Reykjavik Keflavik Intl.
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Cheapflights Fare Finder

 
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

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Tue 29/9

18:00-07:40

1 stop14h 40m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£86
Fastest return journey

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Sun 13/9

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£86

LondonReykjavik

STN London Stansted - KEF Reykjavik Keflavik Intl

STNKEF

London Stansted

Tue 20/10

19:40-18:25

2 stops23h 45m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£87

LondonReykjavik

STN London Stansted - KEF Reykjavik Keflavik Intl

STNKEF

London Stansted

Sun 6/12

15:25-10:00

2 stops42h 35m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£89

LondonReykjavik

STN London Stansted - KEF Reykjavik Keflavik Intl

STNKEF

London Stansted

Sat 17/10

21:00-18:55

1 stop22h 55m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£90

LondonReykjavik

LGW London Gatwick - KEF Reykjavik Keflavik Intl

LGWKEF

London Gatwick

Tue 22/9

19:15-07:40

1 stop13h 25m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£90

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Wed 16/9

06:15-08:20

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£91

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Sun 27/9

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£92

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Sat 31/10

11:45-15:05

Nonstop3h 20m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£94

LondonReykjavik

STN London Stansted - KEF Reykjavik Keflavik Intl

STNKEF

London Stansted

Fri 2/10

21:40-07:50

1 stop11h 10m

Reykjavik Keflavik Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£95

Flights are sorted by cheapest return flights first.

Deals found on 5/9

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

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 £115). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £346). 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?

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 25% on your trip compared to booking a flight at midday.

Weekly flight availability from London to Reykjavik Keflavik Intl Airport

The most flights from LON to KEF are scheduled on a Thursday (19 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

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

Airfare is below average for this route at the moment.
London to Reykjavik Keflavik Intl Airport flights typically cost between £215 and £290 in November.
The cheapest return price found within the last 5 days was £148 on Icelandair (28 Nov–5 Dec).

How often are flights from London to Reykjavik delayed?

About 12% 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 evening 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?

Monday tends to have the lowest number of delays on this route, whereas Saturday 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 10% 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 71 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?

Travellers seeking maximum savings on their London to Reykjavik Keflavik Intl Airport flight should consider departing on Sunday at midday when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Keflavik Intl

Get a feel of what it's like to fly with Scandinavian Airlines,Icelandair, 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.
Scandinavian Airlines
7.4
Good
1,981 reviews
Check prices

Food

6.8

Boarding

7.7

Entertainment

6.8

Crew

8.0

Overall

7.4

Comfort

7.4

Reviews

1 / 20
8.0
Excellent

Ray,Jul 2026

ARN - CPH

Premium economy has good and bad seats, some have a seat support between your feet. Auction process for upgrades is very bad.... I won the bid, and was not given a seat.
Scandinavian Airlines
7.4
Good
1,981 reviews
Scandinavian Airlines
7.4
Good
1,981 reviews
Check prices

Food

6.8

Boarding

7.7

Entertainment

6.8

Crew

8.0

Overall

7.4

Comfort

7.4

Reviews

1 / 20
8.0
Excellent

Ray,Jul 2026

ARN - CPH

Premium economy has good and bad seats, some have a seat support between your feet. Auction process for upgrades is very bad.... I won the bid, and was not given a seat.
Icelandair
6.9
Okay
741 reviews
Scandinavian Airlines
7.4
Good
1,981 reviews
Check prices

Food

6.8

Boarding

7.7

Entertainment

6.8

Crew

8.0

Overall

7.4

Comfort

7.4

Reviews

1 / 20
8.0
Excellent

Ray,Jul 2026

ARN - CPH

Premium economy has good and bad seats, some have a seat support between your feet. Auction process for upgrades is very bad.... I won the bid, and was not given a seat.
easyJet
6.9
Okay
1,925 reviews
Scandinavian Airlines
7.4
Good
1,981 reviews
Check prices

Food

6.8

Boarding

7.7

Entertainment

6.8

Crew

8.0

Overall

7.4

Comfort

7.4

Reviews

1 / 20
8.0
Excellent

Ray,Jul 2026

ARN - CPH

Premium economy has good and bad seats, some have a seat support between your feet. Auction process for upgrades is very bad.... I won the bid, and was not given a seat.
British Airways
6.7
Okay
8,209 reviews
Scandinavian Airlines
7.4
Good
1,981 reviews
Check prices

Food

6.8

Boarding

7.7

Entertainment

6.8

Crew

8.0

Overall

7.4

Comfort

7.4

Reviews

1 / 20
8.0
Excellent

Ray,Jul 2026

ARN - CPH

Premium economy has good and bad seats, some have a seat support between your feet. Auction process for upgrades is very bad.... I won the bid, and was not given a seat.

Related info for your journey

  • 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 £202. The distance from London to Reykjavik Keflavik Intl Airport is about 1177 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 £118 and £132, respectively. You may be able to fly from London to Reykjavik Keflavik Intl Airport for 73% 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 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 Icelandair (81%), Emirates (81%) or Air India (81%) 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 £125. On average you can expect to pay £684. The most popular route, (London Heathrow - Reykjavik Keflavik Intl), can usually be booked for £130.

  • 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 £115). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £346). 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
Kopavogur
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

Fly from London to Keflavik Intl on these airlines

easyJet flights from London to Reykjavik Keflavik Intl

Top 4 airlines flying from London to Keflavik Intl

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£54Average£115FlexibilityNo cancel feeOn-time86%
Search easyJet flights
IcelandairCheapest£118Average£256FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£132Average£244FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£167Average£345FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

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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.

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

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