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Cheap flights from London to Reykjavik Keflavik Intl Airport from £89

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
8 Jul — 15 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 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
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 8 June 2026.

Wed 2/906:15
LTN
-
KEF
Nonstop3h 05m
easyJet
Wed 9/909:00
KEF
-
LTN
Nonstop2h 55m
easyJet
Deal found 3/6£183
Thu 24/919:50
LHR
-
KEF
1 stop12h 15m
Scandinavian Airlines
Sun 4/1018:10
KEF
-
LHR
1 stop14h 25m
Scandinavian Airlines
Deal found 6/6£183
Fri 18/908:30
LTN
-
KEF
1 stop8h 20m
Multiple Airlines
Sun 4/1009:10
KEF
-
LTN
Nonstop3h 00m
Multiple Airlines
Deal found 5/6£184
Wed 11/1120:35
LHR
-
KEF
Nonstop3h 20m
Multiple Airlines
Sun 22/1114:45
KEF
-
LHR
1 stop6h 05m
Multiple Airlines
Deal found 3/6£184
Thu 19/1117:20
LGW
-
KEF
1 stop16h 30m
Multiple Airlines
Sun 22/1111:20
KEF
-
LGW
Nonstop3h 10m
Multiple Airlines
Deal found 6/6£184
Sat 20/616:35
LTN
-
KEF
Nonstop3h 05m
easyJet
Mon 22/620:30
KEF
-
LTN
Nonstop2h 55m
easyJet
Deal found 6/6£185
Mon 7/1206:30
LHR
-
KEF
1 stop7h 15m
KLM
Fri 11/1214:45
KEF
-
LHR
1 stop6h 05m
KLM
Deal found 7/6£185
Thu 5/1108:05
STN
-
KEF
1 stop7h 45m
Multiple Airlines
Sun 8/1120:45
KEF
-
STN
1 stop14h 05m
Multiple Airlines
Deal found 6/6£185
Thu 5/1112:15
LHR
-
KEF
Nonstop3h 15m
Icelandair
Thu 12/1116:20
KEF
-
LHR
Nonstop3h 10m
Icelandair
Deal found 3/6£186
Sun 4/1006:25
LTN
-
KEF
Nonstop3h 05m
easyJet
Wed 7/1009:00
KEF
-
LTN
Nonstop2h 55m
easyJet
Deal found 7/6£187
Mon 23/1106:30
LHR
-
KEF
1 stop7h 15m
KLM
Sat 28/1114:45
KEF
-
LHR
1 stop6h 05m
KLM
Deal found 4/6£187
Mon 23/1111:55
LGW
-
KEF
Nonstop3h 25m
Multiple Airlines
Sat 28/1118:35
KEF
-
LGW
Nonstop3h 10m
Multiple Airlines
Deal found 4/6£187

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 8 June 2026.

Round-trip from

£183

One-way from

£89

Popular in

July

Cheapest in

November

Average price

£268

Good round-trip deal

£127 or less

Good one-way deal

£168 or less
easyJet
  • easyJet
  • 2/9-9/9
  • Nonstop
  • 6h 00m total
  • London to Reykjavik
Search Deals
26/8
  • 26/8
  • 1 total stop
  • 15h 05m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£78 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 June 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 8 June 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

LTN - KEF

LTNKEF

London Luton

Fri 25/9

20:00-07:50

1 stop12h 50m

Reykjavik Keflavik Intl

Wed 30/9

09:00-12:55

Nonstop2h 55m

£190

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 30/8

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Sat 5/9

17:45-09:25

1 stop14h 40m

£196
Fastest return journey

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Fri 19/6

16:30-18:35

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 22/6

20:30-00:25

Nonstop2h 55m

£196

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 28/10

18:40-10:50

1 stop16h 10m

Reykjavik Keflavik Intl

Sat 7/11

17:05-09:35

1 stop16h 30m

£207

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 30/8

06:25-08:30

Nonstop3h 05m

Reykjavik Keflavik Intl

Thu 3/9

11:15-22:35

1 stop10h 20m

£210

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 8/10

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Tue 20/10

07:40-11:55

Nonstop3h 15m

£218

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Sat 20/6

05:55-19:15

2 stops14h 20m

Reykjavik Keflavik Intl

Mon 22/6

18:25-07:50

1 stop12h 25m

£220

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Mon 24/8

19:40-07:50

1 stop13h 10m

Reykjavik Keflavik Intl

Wed 26/8

08:20-22:25

1 stop13h 05m

£220

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Thu 1/10

15:40-17:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Sat 10/10

10:30-14:40

Nonstop3h 10m

£221

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 28/10

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sat 7/11

07:35-10:50

Nonstop3h 15m

£223

Flights are sorted by cheapest return flights first.

Deals found on 5/6

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 £145). 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 8 June 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 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

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 8 June 2026.

The most flights from LON to KEF are scheduled on a Wednesday (20 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 London to Reykjavik Keflavik Intl Airport?

How often are flights from London to Reykjavik delayed?

About 11% of weekly flights between London and Reykjavik have experienced delays in the past year, with the average delay time being 111 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?

Monday 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 8 June 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. 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 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 8 June 2026.
Get a feel of what it's like to fly with Icelandair,easyJet, andBritish Airways 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
670 reviews
Check prices

Overall

7.0

Crew

8.0

Boarding

7.2

Food

6.2

Comfort

6.9

Entertainment

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
670 reviews
Icelandair
7.0
Good
670 reviews
Check prices

Overall

7.0

Crew

8.0

Boarding

7.2

Food

6.2

Comfort

6.9

Entertainment

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
1,904 reviews
Icelandair
7.0
Good
670 reviews
Check prices

Overall

7.0

Crew

8.0

Boarding

7.2

Food

6.2

Comfort

6.9

Entertainment

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
8,027 reviews
Icelandair
7.0
Good
670 reviews
Check prices

Overall

7.0

Crew

8.0

Boarding

7.2

Food

6.2

Comfort

6.9

Entertainment

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 10m. easyJet provides one of the quickest options available for as low as £218. 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 £120 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 Stansted - 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 Emirates (91%), Air India (91%) or TAP AIR PORTUGAL (91%) 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 £795. The most popular route, (London Heathrow - Reykjavik Keflavik Intl), can usually be booked for £103.

  • 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 £145). 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 8 June 2026.
easyJet flights from London to Reykjavik Keflavik Intl

Top 4 airlines flying from London to Keflavik Intl

Discover the top 4 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 8 June 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£54Average£119FlexibilityNo cancel feeOn-time86%
Search easyJet flights
IcelandairCheapest£120Average£278FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£126Average£244FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£169Average£355FlexibilityNo 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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