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$84+ Cheap flights from Keflavik Intl (KEF) to Heathrow (LHR)

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Heathrow (LHR). 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 January 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$165
(British Airways)

One-way from

$84
(Scandinavian Airlines)

Popular in

November

Cheapest in

February

Average price

$262
Provider with most accurate pricing for Reykjavik Keflavik Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-London Heathrow flights.
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From Reykjavik Keflavik Intl to London Heathrow
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One-way flight from Reykjavik Keflavik Intl to London Heathrow
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High demand for flights, 10% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Keflavik Intl to Heathrow

Cheapest flights from Keflavik Intl to Heathrow
Explore the most affordable flight options available from Keflavik Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This British Airways deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:45 pmKEF - LHR
Nonstop3h 00mBritish Airways
Sun 2/97:20 amLHR - KEF
Nonstop3h 20mBritish Airways
Deal found 1/16$165
This Scandinavian Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1011:30 amKEF - LHR
1 stop6h 10mScandinavian Airlines
Mon 3/109:05 pmLHR - KEF
2 stops13h 55mScandinavian Airlines
Deal found 1/16$205
This Expedia deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:45 pmKEF - LHR
Nonstop3h 00mMultiple Airlines
Tue 2/118:40 pmLHR - KEF
Nonstop3h 15mMultiple Airlines
Deal found 1/16$216
This Icelandair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/124:20 pmKEF - LHR
Nonstop3h 10mIcelandair
Wed 2/198:40 pmLHR - KEF
Nonstop3h 15mIcelandair
Deal found 1/16$218
This Austrian Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/712:10 amKEF - LHR
1 stop20h 30mAustrian Airlines
Sun 6/156:00 amLHR - KEF
1 stop18h 20mAustrian Airlines
Deal found 1/16$274
This Lufthansa deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/263:15 pmKEF - LHR
1 stop7h 00mLufthansa
Sat 2/15:30 pmLHR - KEF
1 stop20h 45mLufthansa
Deal found 1/16$336
This SWISS deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/12:20 pmKEF - LHR
1 stop7h 20mSWISS
Mon 2/32:25 pmLHR - KEF
2 stops46h 55mSWISS
Deal found 1/16$392
This KLM deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1311:20 amKEF - LHR
1 stop5h 40mKLM
Sun 3/166:30 amLHR - KEF
1 stop12h 35mKLM
Deal found 1/16$451

Find flights from Keflavik Intl to Heathrow within your budget

Customize your flight search to find flights from Keflavik Intl to Heathrow 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 2,558,603 searches. Data last updated January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 2/7

6:45 pm-9:45 pm

Nonstop3h 00m

London Heathrow

Sun 2/9

7:20 am-10:40 am

Nonstop3h 20m

$165

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 3/10

11:30 am-5:40 pm

1 stop6h 10m

London Heathrow

Mon 3/10

9:05 pm-11:00 am

2 stops13h 55m

$205

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 2/7

6:45 pm-9:45 pm

Nonstop3h 00m

London Heathrow

Tue 2/11

8:40 pm-11:55 pm

Nonstop3h 15m

$216

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 2/12

4:20 pm-7:30 pm

Nonstop3h 10m

London Heathrow

Wed 2/19

8:40 pm-11:55 pm

Nonstop3h 15m

$218

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sun 1/26

3:15 pm-10:15 pm

1 stop7h 00m

London Heathrow

Sat 2/1

5:30 pm-2:15 pm

1 stop20h 45m

$336

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 2/1

2:20 pm-9:40 pm

1 stop7h 20m

London Heathrow

Mon 2/3

2:25 pm-1:20 pm

2 stops46h 55m

$392

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 3/13

11:20 am-5:00 pm

1 stop5h 40m

London Heathrow

Sun 3/16

6:30 am-7:05 pm

1 stop12h 35m

$451

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Tue 4/1

12:10 am-8:20 am

1 stop7h 10m

London Heathrow

Sun 4/6

6:00 pm-11:20 pm

2 stops54h 20m

$2,294

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 4/3

11:05 am-9:35 pm

1 stop9h 30m

$84

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 2/27

11:40 am-2:55 pm

Nonstop3h 15m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 17 results
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Compare providers for flights from Keflavik Intl to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Keflavik Intl to Heathrow in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Keflavik Intl with our price prediction graph.
Estimated round-trip 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.

Travel insights for flights from Keflavik Intl to Heathrow

Get recent, data-driven insights about flights from Keflavik Intl to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport (average of $661). Flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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 LHR?

Find hourly flight availability from Keflavik Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

One of the essential ways to save on airfare from Reykjavik Keflavik Intl Airport to London Heathrow Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 33% on airfare.

Weekly flight availability from Reykjavik Keflavik Intl Airport to London Heathrow Airport

Explore weekly flight availability from Keflavik Intl to Heathrow. 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 January 16, 2025.

The most flights from KEF to LHR are scheduled on a Wednesday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated January 16, 2025.
Peruse reviews from past customers who have flown with British Airways, Icelandair and Scandinavian Airlines from Reykjavik to London to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
786 reviews
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,598 reviews
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Scandinavian Airlines
7.3
Good
1,308 reviews
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Icelandair
7.1
Good
501 reviews
KLM
7.8
Good
1,339 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Heathrow. 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 Heathrow Airport round-trip?

    British Airways, at $165, was found to be the cheapest airline from Reykjavik Keflavik Intl Airport to London Heathrow Airport.Alternate airlines to your destination round-trip include Scandinavian Airlines and Icelandair. British Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport are Scandinavian Airlines ($84), British Airways ($88), and Iberia ($118).

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

    No one likes to see their flight delayed. When booking a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport consider choosing Emirates (100%), Turkish Airlines (77%) or Icelandair (74%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $112. While the most popular route (Reykjavik Keflavik Intl - London Heathrow) can be booked for $166 on average our data indicates $1,084 when flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport (average of $661). Flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Canterbury
Northampton
Gatwick
Horley
Milton Keynes
Dover
Watford
Orpington
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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Top 2 airlines flying from Keflavik Intl to Heathrow

Discover the top 2 airlines that operate flights from Keflavik Intl to Heathrow. 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 2,558,603 searches. Data last updated January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$88Average$211FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$181Average$300FlexibilityNo cancel feeOn-time76%
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