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Cheap flights from London to Reykjavik Keflavik Intl Airport from $100

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
3 Apr — 10 Apr1
1 adult

Cheap 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 29 March 2025.

Round-trip from

$186

One-way from

$100

Popular in

August

Cheapest in

January

Average price

$199

Good round-trip deal

$232 or less

Good one-way deal

$96 or less
easyJet
  • easyJet
  • 1/6-4/6
  • Nonstop
  • 6h 05m total
  • London to Reykjavik
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easyJet
  • easyJet
  • 1/6
  • Nonstop
  • 3h 05m total
  • London to Reykjavik
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Highest demand for flights based on searches. 23% potential increase in price ($140 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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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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Find flight deals from London to Keflavik Intl

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 29 March 2025.

Sun 1/606:50LTN - KEF
Nonstop3h 05measyJet
Wed 4/609:00KEF - LTN
Nonstop3h 00measyJet
Deal found 28/3$186
Mon 24/1107:40LGW - KEF
Nonstop3h 25measyJet
Sat 29/1118:35KEF - LGW
Nonstop3h 10measyJet
Deal found 28/3$186
Mon 12/511:40STN - KEF
Nonstop3h 05mPLAY
Mon 19/506:40KEF - STN
Nonstop3h 00mPLAY
Deal found 28/3$200
Fri 21/1111:55LGW - KEF
Nonstop3h 25mIcelandair
Wed 26/1107:40KEF - LGW
Nonstop3h 15mIcelandair
Deal found 28/3$267
Sun 18/507:25STN - KEF
1 stop11h 50mMultiple Airlines
Wed 21/506:40KEF - STN
Nonstop3h 00mMultiple Airlines
Deal found 29/3$272
Thu 1/507:35LHR - KEF
Nonstop3h 05mBritish Airways
Thu 8/510:30KEF - LHR
Nonstop3h 10mBritish Airways
Deal found 27/3$283
Wed 23/419:50LHR - KEF
1 stop15h 25mScandinavian Airlines
Sun 27/416:10KEF - LHR
1 stop16h 25mScandinavian Airlines
Deal found 28/3$286
Sat 22/1120:40LHR - KEF
Nonstop3h 15mIcelandair
Wed 26/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 28/3$304
Mon 12/519:25LTN - KEF
1 stop20h 15mMultiple Airlines
Mon 19/509:35KEF - LTN
1 stop21h 15mMultiple Airlines
Deal found 28/3$324
Mon 28/407:40LHR - KEF
Nonstop3h 05mMultiple Airlines
Wed 21/511:05KEF - LHR
1 stop9h 30mMultiple Airlines
Deal found 29/3$327
Sun 25/521:30STN - KEF
1 stop12h 25measyJet
Mon 2/609:35KEF - STN
1 stop10h 25measyJet
Deal found 29/3$353
Sun 18/509:05LGW - KEF
1 stop10h 10mMultiple Airlines
Wed 21/510:45KEF - LGW
1 stop20h 30mMultiple Airlines
Deal found 29/3$373

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 29 March 2025.
Use the filters below to find and compare flights from London to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

London

Fly to

Keflavik Intl

Route

Depart

Return

Price

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Sun 1/6

06:50-08:55

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 4/6

09:00-13:00

Nonstop3h 00m

$186

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Mon 12/5

11:40-13:45

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 19/5

06:40-10:40

Nonstop3h 00m

$200

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Sun 18/5

07:25-18:15

1 stop11h 50m

Reykjavik Keflavik Intl

Wed 21/5

06:40-10:40

Nonstop3h 00m

$272

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Tue 2/9

15:40-17:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Tue 16/9

10:25-14:35

Nonstop3h 10m

$275

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sat 10/5

07:35-23:35

1 stop17h 00m

Reykjavik Keflavik Intl

Mon 12/5

09:35-22:50

1 stop12h 15m

$276

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 1/5

07:35-09:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Thu 8/5

10:30-14:40

Nonstop3h 10m

$283

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 23/4

19:50-10:15

1 stop15h 25m

Reykjavik Keflavik Intl

Sun 27/4

16:10-09:35

1 stop16h 25m

$286

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Mon 12/5

19:25-14:40

1 stop20h 15m

Reykjavik Keflavik Intl

Mon 19/5

09:35-07:50

1 stop21h 15m

$324

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 12/5

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Mon 19/5

16:10-20:20

Nonstop3h 10m

$326

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 12/5

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Mon 19/5

11:05-18:50

1 stop6h 45m

$348

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 44 results
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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

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

Use this chart to determine the optimal time to book a return flight from London to Keflavik Intl. Price data was last updated on 21 March 2025.

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 84 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 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 29 March 2025.

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 morning, which can drop the price by up to 27% versus a flight at midday.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 40.0 mm.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 11.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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 29 March 2025.
Get a feel of what it's like to fly with KLM, LOT and Austrian Airlines from London to Reykjavik by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,321 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,063 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.5
Good
769 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,570 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Scandinavian Airlines
7.3
Good
1,325 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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.

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

    Cheapflights users have booked flights from London to Reykjavik Keflavik Intl Airport round-trip from $186. Other airlines that can offer you cheap pricing are PLAY, from $200, and Icelandair, from $275. Users have found that easyJet is 36% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London to Reykjavik Keflavik Intl Airport one-way?

    The cheapet airlines for a one-way flight from London to Reykjavik Keflavik Intl Airport are easyJet ($100), PLAY ($148), and British Airways ($156).

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

    Most travellers choose London Heathrow - Reykjavik Keflavik Intl, London Luton - 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?

    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: Qatar Airways (98%), American Airlines (93%), Qantas Airways (93%).

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

    On average you can expect to pay $1,108 for a flight from London to Reykjavik Keflavik Intl Airport. The cheapest flight overall is $149 while the most popular route, (London Heathrow - Reykjavik Keflavik Intl) is currently priced at $165.

  • 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.

See more FAQs

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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 29 March 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$286Average$398FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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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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