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Cheap flights from London to Reykjavik Keflavik Intl Airport from $262

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
8 Sep — 15 Sep1
1 adult
1 adult, Economy, 0 bags

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 9 August 2026.

Tue 3/1107:35 -
Nonstop3h 20m
Fri 6/1118:10 -
Nonstop3h 00m
Deal found 6/8$389
Wed 23/1213:00 -
Nonstop3h 15m
Sun 3/110:05 -
Nonstop3h 00m
Deal found 5/8$390
Thu 3/1210:10 -
Nonstop3h 25m
Sun 6/1211:30 -
1 stop11h 20m
Deal found 7/8$390
Mon 7/1207:45 -
1 stop6h 00m
Fri 11/1214:45 -
1 stop17h 25m
Deal found 6/8$390
Thu 24/1206:00 -
Nonstop3h 15m
Sun 3/110:05 -
Nonstop3h 00m
Deal found 6/8$393
Fri 18/1221:15 -
1 stop13h 55m
Tue 22/1212:20 -
Nonstop3h 10m
Deal found 6/8$393
Mon 23/1106:30 -
1 stop7h 15m
Tue 8/1214:45 -
1 stop6h 05m
Deal found 6/8$395
Thu 24/1210:10 -
Nonstop3h 25m
Sat 2/118:35 -
Nonstop3h 10m
Deal found 5/8$395
Wed 23/1213:00 -
Nonstop3h 15m
Mon 4/119:35 -
Nonstop2h 55m
Deal found 6/8$396
Mon 14/919:35 -
1 stop13h 15m
Tue 22/918:00 -
1 stop13h 20m
Deal found 5/8$396
Thu 1/1014:25 -
Nonstop3h 20m
Mon 5/1018:40 -
1 stop12h 50m
Deal found 7/8$397
Sat 26/1207:00 -
Nonstop3h 15m
Fri 1/119:55 -
Nonstop2h 55m
Deal found 6/8$399

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 9 August 2026.

Round-trip from

$389

One-way from

$262

Popular in

July

Cheapest in

January

Average price

$632

Good round-trip deal

$724 or less

Good one-way deal

$231 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 10/11-16/11
  • 2 total stops
  • 30h 10m total
  • London to Reykjavik
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 30/10
  • 1 total stop
  • 10h 40m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($281 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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.
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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 647,157 searches. Data last updated 9 August 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

LCY London City - KEF Reykjavik Keflavik Intl

LCYKEF

London City

Mon 7/12

07:45-13:45

1 stop6h 00m

Reykjavik Keflavik Intl

Fri 11/12

14:45-08:10

1 stop17h 25m

$390
Fastest return journey

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Wed 23/12

13:00-16:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 3/1

10:05-13:05

Nonstop3h 00m

$392

LondonReykjavik

LGW London Gatwick - KEF Reykjavik Keflavik Intl

LGWKEF

London Gatwick

Wed 23/12

10:00-13:30

Nonstop3h 30m

Reykjavik Keflavik Intl

Thu 31/12

09:20-22:15

1 stop12h 55m

$400

LondonReykjavik

LGW London Gatwick - KEF Reykjavik Keflavik Intl

LGWKEF

London Gatwick

Sat 24/10

08:00-23:35

1 stop16h 35m

Reykjavik Keflavik Intl

Tue 27/10

20:25-11:20

1 stop14h 55m

$402

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Sun 1/11

20:35-23:50

Nonstop3h 15m

Reykjavik Keflavik Intl

Thu 5/11

16:20-19:30

Nonstop3h 10m

$403

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Tue 1/9

18:00-07:40

1 stop14h 40m

Reykjavik Keflavik Intl

Wed 30/9

09:00-12:55

Nonstop2h 55m

$403

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Tue 5/1

08:55-19:35

1 stop10h 40m

Reykjavik Keflavik Intl

Sat 9/1

18:20-10:25

1 stop16h 05m

$404

LondonReykjavik

STN London Stansted - KEF Reykjavik Keflavik Intl

STNKEF

London Stansted

Wed 23/12

20:25-08:30

1 stop12h 05m

Reykjavik Keflavik Intl

Thu 31/12

09:20-20:00

1 stop10h 40m

$414

LondonReykjavik

LTN London Luton - KEF Reykjavik Keflavik Intl

LTNKEF

London Luton

Sat 26/12

07:00-10:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Sat 2/1

10:55-13:55

Nonstop3h 00m

$416

LondonReykjavik

LGW London Gatwick - KEF Reykjavik Keflavik Intl

LGWKEF

London Gatwick

Wed 23/12

10:00-13:30

Nonstop3h 30m

Reykjavik Keflavik Intl

Sat 2/1

18:35-21:45

Nonstop3h 10m

$416

Flights are sorted by cheapest return flights first.

Deals found on 7/8

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 $192). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $658). 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 9 August 2026.

When flying from London to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 55% versus a flight in the morning.

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 $471 and $758 in November.
The cheapest return price found within the last 5 days was $389 on British Airways (3 Nov–6 Nov).

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 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 9% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from London to Reykjavik Keflavik Intl Airport, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 August 2026.

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

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?

    There are many flights that can get you from London to Reykjavik Keflavik Intl Airport in 3h 15m. Fly via KLM, easyJet, or Icelandair to get the fastest option. Airlines will cover a distance of 1860 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London to Reykjavik Keflavik Intl Airport round-trip?

    Cheapflights users have booked flights from London to Reykjavik Keflavik Intl Airport round-trip from $271. Users have found that Icelandair is 29% cheaper than the other options available to this destination.

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

    Most travellers choose London Luton - Reykjavik Keflavik Intl, London Stansted - Reykjavik Keflavik Intl or London Gatwick - 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?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Reykjavik Keflavik Intl Airport on time: Icelandair (85%), Emirates (85%), Air India (85%).

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

    On average you can expect to pay $628 for a flight from London to Reykjavik Keflavik Intl Airport. The cheapest flight overall is $206 while the most popular route, (London Luton - Reykjavik Keflavik Intl) is currently priced at $129.

  • 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 $192). Flying from London to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $658). 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
Keflavik

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Top airline flying from London to Keflavik Intl

Discover the top airline 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 647,157 searches. Data last updated 9 August 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$271Average$381FlexibilityNo cancel feeOn-time76%
Search Icelandair 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?

Cheapflights makes it easy to find London to Keflavik Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Keflavik Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Keflavik Intl for you. Better yet — we are completely free to use.

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

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

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

Yes! Start tracking prices for London to Keflavik Intl 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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