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Cheap flights from Reykjavik Keflavik Intl Airport to London from £54

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LON
31 Mar — 7 Apr1
1 adult

Cheapflights Tip: The best prices from Reykjavik Keflavik Intl to London are usually found in February or September, booked 69 days in advance, depart on a Tuesday or Thursday and return on a Sunday

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 26 March 2025.

Round-trip from

£97

One-way from

£54

Popular in

October

Cheapest in

February

Average price

£138

Good round-trip deal

£50 or less

Good one-way deal

£42 or less
PLAY
  • PLAY
  • 7/5-11/5
  • Nonstop
  • 6h 05m total
  • Reykjavik to London
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easyJet
  • easyJet
  • 9/7
  • Nonstop
  • 3h 00m total
  • Reykjavik to London
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Highest demand for flights based on searches. 13% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 11% potential price decrease (£12 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 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 26 March 2025.

Sat 8/1106:50KEF - STN
Nonstop3h 05mPLAY
Tue 11/1110:55STN - KEF
Nonstop3h 05mPLAY
Deal found 25/3£97
Wed 7/509:00KEF - LTN
Nonstop3h 00measyJet
Wed 14/506:15LTN - KEF
Nonstop2h 55measyJet
Deal found 25/3£101
Wed 7/506:40KEF - STN
Nonstop3h 00mMultiple Airlines
Sun 11/507:00STN - KEF
1 stop11h 50mMultiple Airlines
Deal found 25/3£128
Sat 8/1111:50KEF - LHR
Nonstop3h 15mBritish Airways
Tue 11/1107:35LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 25/3£132
Sat 8/1118:35KEF - LGW
Nonstop3h 10measyJet
Tue 11/1108:30LGW - KEF
1 stop6h 05measyJet
Deal found 25/3£134
Wed 7/508:05KEF - STN
1 stop11h 45measyJet
Sun 11/521:30STN - KEF
1 stop12h 25measyJet
Deal found 25/3£143
Thu 15/519:10KEF - LTN
1 stop11h 35mMultiple Airlines
Sun 18/506:50LTN - KEF
Nonstop3h 05mMultiple Airlines
Deal found 25/3£145
Wed 16/411:15KEF - STN
Nonstop2h 45mJet2
Sun 20/407:25STN - KEF
Nonstop2h 50mJet2
Deal found 25/3£151
Mon 19/511:05KEF - LHR
1 stop9h 30mScandinavian Airlines
Thu 22/517:30LHR - KEF
1 stop14h 35mScandinavian Airlines
Deal found 25/3£160
Thu 3/419:25KEF - LTN
1 stop24h 15mWizz Air
Mon 7/421:20LTN - KEF
1 stop11h 35mWizz Air
Deal found 25/3£160
Tue 6/500:15KEF - LGW
1 stop21h 05mMultiple Airlines
Sun 11/509:05LGW - KEF
1 stop10h 10mMultiple Airlines
Deal found 25/3£166
Thu 8/501:15KEF - LHR
1 stop17h 25mLufthansa
Wed 14/517:30LHR - KEF
1 stop7h 05mLufthansa
Deal found 25/3£172

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 26 March 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 - STN

KEFSTN

Reykjavik Keflavik Intl

Wed 7/5

06:40-10:40

Nonstop3h 00m

London Stansted

Sun 11/5

11:40-13:45

Nonstop3h 05m

£97

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Wed 7/5

09:00-13:00

Nonstop3h 00m

London Luton

Wed 14/5

06:15-08:10

Nonstop2h 55m

£101

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Wed 7/5

06:40-10:40

Nonstop3h 00m

London Stansted

Sun 11/5

07:00-17:50

1 stop11h 50m

£128

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 8/5

10:30-14:40

Nonstop3h 10m

London Heathrow

Sun 11/5

07:25-09:30

Nonstop3h 05m

£140

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Wed 7/5

08:05-20:50

1 stop11h 45m

London Stansted

Sun 11/5

21:30-08:55

1 stop12h 25m

£143

ReykjavikLondon

KEF - LTN

KEFLTN

Reykjavik Keflavik Intl

Thu 15/5

19:10-07:45

1 stop11h 35m

London Luton

Sun 18/5

06:50-08:55

Nonstop3h 05m

£145

ReykjavikLondon

KEF - STN

KEFSTN

Reykjavik Keflavik Intl

Wed 16/4

11:15-15:00

Nonstop2h 45m

London Stansted

Sun 20/4

07:25-09:15

Nonstop2h 50m

£151

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 19/5

11:05-21:35

1 stop9h 30m

London Heathrow

Thu 22/5

17:30-07:05

1 stop14h 35m

£160

ReykjavikLondon

KEF - LGW

KEFLGW

Reykjavik Keflavik Intl

Tue 6/5

00:15-22:20

1 stop21h 05m

London Gatwick

Sun 11/5

09:05-18:15

1 stop10h 10m

£166

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 8/5

01:15-19:40

1 stop17h 25m

London Heathrow

Wed 14/5

17:30-23:35

1 stop7h 05m

£172

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 57 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 21 March 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 26 March 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.

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 26 March 2025.
Peruse reviews from past customers who have flown with Jet2, KLM and airBaltic 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.
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Jet2
8.3
Very Good
161 reviews
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
KLM
7.8
Good
1,319 reviews
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
airBaltic
7.8
Good
178 reviews
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Norwegian
7.8
Good
221 reviews
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
LOT
7.6
Good
1,061 reviews
Jet2
8.3
Very Good
161 reviews
Check prices

Entertainment

6.3

Overall

8.3

Boarding

8.2

Comfort

7.8

Crew

8.8

Food

7.3

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

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, PLAY (£97), easyJet (£101), and British Airways (£140) offers the cheapest pricing from Reykjavik Keflavik Intl Airport to London. PLAY is 38% 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 easyJet, with whom users have recently found tickets for as low as £54. However, be on the lookout for offers from PLAY and Scandinavian Airlines, 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 Gatwick, Reykjavik Keflavik Intl - London Heathrow and Reykjavik Keflavik Intl - London Stansted.

  • 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 American Airlines (93%), British Airways (93%) and Qatar Airways (86%).

  • 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 £513, our data indicates the cheapest price to be £78. The most popular route (Reykjavik Keflavik Intl - London Gatwick), is priced around £165.

  • 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
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall
Dartford
Folkestone

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

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

Yes! Start tracking prices for Keflavik Intl to London 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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