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Cheap flights from Reykjavik Keflavik Intl Airport to London from £73

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/12. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LON
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Reykjavik Keflavik Intl to London are usually found in March or February, booked 67 days in advance, depart on a Sunday or Friday and return on a Thursday

Cheap flight deals from Keflavik Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to London (LON). 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

£96

One-way from

£74

Popular in

October

Cheapest in

March

Average price

£222

Good round-trip deal

£72 or less

Good one-way deal

£63 or less
easyJet
  • easyJet
  • 1/10-15/10
  • Nonstop
  • 6h 05m total
  • Reykjavik to London
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Wizz Air
  • Wizz Air
  • 5/8
  • 1 total stop
  • 12h 20m total
  • Reykjavik to London
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Highest demand for flights based on searches. 14% potential increase in price (£19 potential increase over avg. return price).
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Cheapest flight prices on average. 10% potential price decrease (£11 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 Reykjavik Keflavik Intl to London (LON).
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to London (LON).
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Find flight deals from Keflavik Intl to London

Cheapest flights from Keflavik Intl to London
Explore the most affordable flight options available from Keflavik Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Wed 17/1211:30KEF - LTN
Nonstop2h 55measyJet
Thu 1/106:30LTN - KEF
Nonstop3h 15measyJet
Deal found 12/6£73
Wed 17/1218:05KEF - LGW
Nonstop3h 10measyJet
Thu 1/113:55LGW - KEF
Nonstop3h 20measyJet
Deal found 12/6£112
Sun 27/706:40KEF - STN
Nonstop3h 00mPLAY
Mon 28/711:40STN - KEF
Nonstop3h 05mPLAY
Deal found 12/6£134
Wed 1/1006:40KEF - STN
Nonstop3h 00mMultiple Airlines
Wed 15/1018:45STN - KEF
1 stop14h 05mMultiple Airlines
Deal found 11/6£140
Thu 9/1010:20KEF - LHR
1 stop6h 20mScandinavian Airlines
Thu 9/1019:50LHR - KEF
1 stop12h 15mScandinavian Airlines
Deal found 11/6£146
Thu 18/1211:40KEF - LHR
Nonstop3h 15mBritish Airways
Wed 31/1207:30LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 12/6£149
Wed 1/1009:00KEF - LTN
Nonstop3h 00mMultiple Airlines
Wed 15/1008:30LTN - KEF
1 stop12h 45mMultiple Airlines
Deal found 11/6£157
Thu 18/1213:15KEF - LHR
2 stops8h 25mMultiple Airlines
Wed 31/1207:30LHR - KEF
Nonstop3h 20mMultiple Airlines
Deal found 12/6£173
Wed 1/1010:30KEF - LGW
Nonstop3h 10mIcelandair
Wed 15/1015:40LGW - KEF
Nonstop3h 15mIcelandair
Deal found 11/6£185
Wed 1/1016:10KEF - LHR
Nonstop3h 10mIcelandair
Wed 15/1013:05LHR - KEF
Nonstop3h 10mIcelandair
Deal found 11/6£188
Thu 19/619:25KEF - LTN
1 stop11h 20mWizz Air
Mon 23/621:20LTN - KEF
1 stop22h 25mWizz Air
Deal found 11/6£194
Fri 19/1220:20KEF - LGW
1 stop11h 15mMultiple Airlines
Wed 31/1213:55LGW - KEF
Nonstop3h 20mMultiple Airlines
Deal found 12/6£220

Cheapflights Fare Finder

Customise your flight search to find flights from Keflavik Intl to London 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 13 June 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to London that are best for you.

Fly from

Keflavik Intl

Fly to

London

Route

Depart

Return

Price

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Wed 1/10

09:00-13:00

Nonstop3h 00m

London Luton

Wed 15/10

06:15-08:20

Nonstop3h 05m

£96

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Sun 27/7

06:40-10:40

Nonstop3h 00m

London Stansted

Mon 28/7

11:40-13:45

Nonstop3h 05m

£134

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Wed 1/10

06:40-10:40

Nonstop3h 00m

London Stansted

Wed 15/10

18:45-07:50

1 stop14h 05m

£140

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 9/10

10:20-17:40

1 stop6h 20m

London Heathrow

Thu 9/10

19:50-07:05

1 stop12h 15m

£146

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Wed 1/10

09:00-13:00

Nonstop3h 00m

London Luton

Wed 15/10

08:30-20:15

1 stop12h 45m

£157

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Wed 1/10

10:30-14:40

Nonstop3h 10m

London Gatwick

Wed 15/10

15:40-17:55

Nonstop3h 15m

£185

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Tue 24/6

14:20-22:10

1 stop6h 50m

London Heathrow

Thu 26/6

20:05-08:15

1 stop13h 10m

£185

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 1/10

16:10-20:20

Nonstop3h 10m

London Heathrow

Wed 15/10

13:05-15:15

Nonstop3h 10m

£188

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Sat 16/8

08:30-22:15

1 stop12h 45m

London Gatwick

Sun 31/8

21:25-08:55

1 stop12h 30m

£189

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Tue 24/6

15:25-07:45

1 stop15h 20m

London Luton

Thu 26/6

08:30-18:45

1 stop11h 15m

£205

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 56 results
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Best time to book a flight from Keflavik Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to London

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

Use this chart to determine the optimal time to book a return flight from Keflavik Intl to London. Price data was last updated on 9 June 2025.

The price you pay for your flight from Reykjavik Keflavik Intl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Reykjavik Keflavik Intl Airport to London?

Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £112). Flying from Reykjavik Keflavik Intl Airport to London in August is currently the most expensive (average of £164). 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 KEF to LON?

Find hourly flight availability from Keflavik Intl to London. 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.

It’s optimal to fly from Reykjavik Keflavik Intl Airport to London at midday. By choosing this option you can save up to 61% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Reykjavik Keflavik Intl Airport to London

Explore weekly flight availability from Keflavik Intl to London. 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 KEF to LON are scheduled on a Wednesday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with KLM, airBaltic and Norwegian from Reykjavik to London to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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.
airBaltic
7.8
Good
179 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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.
LOT
7.6
Good
1,079 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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

Food

7.2

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Allan,Jun 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 Keflavik Intl to London. 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 Reykjavik Keflavik Intl Airport to London round-trip?

    According to our current data, easyJet (£96), PLAY (£134), and Scandinavian Airlines (£146) offers the cheapest pricing from Reykjavik Keflavik Intl Airport to London. easyJet is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Wizz Air, with whom users have recently found tickets for as low as £74. However, be on the lookout for offers from British Airways and PLAY, as they are both options that can get you from Reykjavik Keflavik Intl Airport to London for a low price.

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

    The most popular flight routes from Reykjavik Keflavik Intl Airport to London are Reykjavik Keflavik Intl - London Heathrow, Reykjavik Keflavik Intl - London Gatwick and Reykjavik Keflavik Intl - London Luton.

  • What are the most reliable airlines from Reykjavik Keflavik Intl Airport to London?

    The top 3 most reliable airlines when flying from Reykjavik Keflavik Intl Airport to London are Emirates (100%), Japan Airlines (93%) and American Airlines (92%).

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

    Looking for the cheapest flight from Reykjavik Keflavik Intl Airport to London? While on average our users pay £583, our data indicates the cheapest price to be £116. The most popular route (Reykjavik Keflavik Intl - London Heathrow), is priced around £124.

  • Can I find deals for flights from Keflavik Intl to London that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to London.

  • Can I find deals for business class flights from Keflavik Intl to London?

    Yes. Cheapflights offers flight deals from Keflavik Intl to London 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 Reykjavik Keflavik Intl Airport to London?

    Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London (average of £112). Flying from Reykjavik Keflavik Intl Airport to London in August is currently the most expensive (average of £164). 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
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Dartford
Guildford

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