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Cheap flights from London to Reykjavik Keflavik Intl Airport from $167

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KEF
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

$278

One-way from

$167

Popular in

July

Cheapest in

January

Average price

$378

Good round-trip deal

$147 or less

Good one-way deal

$363 or less
easyJet
  • easyJet
  • 4/12-10/12
  • Nonstop
  • 6h 10m total
  • London to Reykjavik
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PLAY
  • PLAY
  • 5/9
  • Nonstop
  • 3h 05m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($232 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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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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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 13 June 2025.

Thu 4/1206:30LTN - KEF
Nonstop3h 15measyJet
Wed 10/1211:30KEF - LTN
Nonstop2h 55measyJet
Deal found 10/6$278
Fri 19/911:40STN - KEF
Nonstop3h 05mPLAY
Mon 22/906:40KEF - STN
Nonstop3h 00mPLAY
Deal found 12/6$282
Sat 6/1214:25LGW - KEF
Nonstop3h 20measyJet
Thu 11/1212:30KEF - LGW
1 stop9h 20measyJet
Deal found 12/6$290
Mon 17/1120:40LHR - KEF
Nonstop3h 15mIcelandair
Wed 26/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 11/6$293
Wed 29/1008:50LTN - KEF
1 stop6h 10mMultiple Airlines
Wed 5/1111:30KEF - LTN
Nonstop2h 55mMultiple Airlines
Deal found 11/6$296
Sun 30/1113:45LHR - KEF
Nonstop3h 25mBritish Airways
Wed 3/1211:45KEF - LHR
Nonstop3h 15mBritish Airways
Deal found 12/6$298
Thu 2/1019:50LHR - KEF
1 stop12h 15mScandinavian Airlines
Mon 6/1010:20KEF - LHR
1 stop10h 20mScandinavian Airlines
Deal found 11/6$304
Fri 5/921:40STN - KEF
1 stop11h 10measyJet
Mon 8/909:35KEF - STN
1 stop10h 25measyJet
Deal found 12/6$310
Thu 18/1211:55LGW - KEF
Nonstop3h 25mIcelandair
Tue 23/1207:40KEF - LGW
Nonstop3h 15mIcelandair
Deal found 11/6$325
Thu 2/1011:40STN - KEF
Nonstop3h 05mMultiple Airlines
Mon 6/1009:35KEF - STN
1 stop21h 50mMultiple Airlines
Deal found 11/6$335
Wed 29/1009:35LGW - KEF
1 stop5h 25mMultiple Airlines
Wed 5/1118:05KEF - LGW
Nonstop3h 10mMultiple Airlines
Deal found 11/6$352
Sun 12/1009:05LHR - KEF
1 stop15h 15mAustrian Airlines
Sun 19/1000:10KEF - LHR
1 stop7h 50mAustrian Airlines
Deal found 13/6$428

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 13 June 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

Thu 4/12

06:30-09:45

Nonstop3h 15m

Reykjavik Keflavik Intl

Wed 10/12

11:30-14:25

Nonstop2h 55m

$278

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Fri 19/9

11:40-13:45

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 22/9

06:40-10:40

Nonstop3h 00m

$282

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sat 6/12

14:25-17:45

Nonstop3h 20m

Reykjavik Keflavik Intl

Thu 11/12

12:30-21:50

1 stop9h 20m

$290

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 17/11

20:40-23:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Wed 26/11

07:35-10:50

Nonstop3h 15m

$293

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Wed 29/10

08:50-15:00

1 stop6h 10m

Reykjavik Keflavik Intl

Wed 5/11

11:30-14:25

Nonstop2h 55m

$296

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 30/11

13:45-17:10

Nonstop3h 25m

Reykjavik Keflavik Intl

Wed 3/12

11:45-15:00

Nonstop3h 15m

$298

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 2/10

19:50-07:05

1 stop12h 15m

Reykjavik Keflavik Intl

Mon 6/10

10:20-21:40

1 stop10h 20m

$304

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Fri 5/9

21:40-07:50

1 stop11h 10m

Reykjavik Keflavik Intl

Mon 8/9

09:35-21:00

1 stop10h 25m

$310

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Thu 2/10

11:40-13:45

Nonstop3h 05m

Reykjavik Keflavik Intl

Mon 6/10

09:35-08:25

1 stop21h 50m

$335

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sun 12/10

15:40-17:55

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 19/10

10:30-14:40

Nonstop3h 10m

$342

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 51 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 9 June 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 13 June 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 32% versus 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 13 June 2025.

The most flights from LON to KEF are scheduled on a Wednesday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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 13 June 2025.
Get a feel of what it's like to fly with KLM, Norwegian 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
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Norwegian
7.8
Good
233 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Austrian Airlines
7.6
Good
802 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
SWISS
7.5
Good
1,624 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Qatar Airways
7.4
Good
3,584 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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 $278. Other airlines that can offer you cheap pricing are PLAY, from $282, and Icelandair, from $293. Users have found that easyJet is 6% 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 PLAY ($167), easyJet ($175), and Scandinavian Airlines ($181).

  • 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 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?

    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: Emirates (100%), Turkish Airlines (93%), American Airlines (92%).

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

    On average you can expect to pay $1,029 for a flight from London to Reykjavik Keflavik Intl Airport. The cheapest flight overall is $294 while the most popular route, (London Luton - Reykjavik Keflavik Intl) is currently priced at $140.

  • 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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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$277Average$385FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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

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

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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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