Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Reykjavik Keflavik Intl Airport to London Heathrow Airport from £76

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
21 Apr — 28 Apr1
1 adult

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 16 April 2025.

Round-trip from

£138

One-way from

£76

Popular in

November

Cheapest in

March

Average price

£264

Good round-trip deal

£430 or less

Good one-way deal

£109 or less
British Airways
  • British Airways
  • 7/5-11/5
  • Nonstop
  • 6h 20m total
  • Reykjavik to London
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 22/5
  • 1 total stop
  • 6h 20m total
  • Reykjavik to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£2 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Reykjavik Keflavik Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Reykjavik Keflavik Intl to London Heathrow.
Search Deals

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 16 April 2025.

Wed 7/510:55KEF - LHR
Nonstop3h 15mBritish Airways
Sun 11/507:25LHR - KEF
Nonstop3h 05mBritish Airways
Deal found 15/4£138
Wed 14/511:05KEF - LHR
1 stop6h 45mMultiple Airlines
Sat 17/507:05LHR - KEF
Nonstop3h 05mMultiple Airlines
Deal found 15/4£169
Wed 14/511:05KEF - LHR
1 stop6h 45mScandinavian Airlines
Sat 17/510:20LHR - KEF
1 stop7h 30mScandinavian Airlines
Deal found 15/4£182
Fri 2/500:25KEF - LHR
1 stop15h 15mLufthansa
Sat 10/516:25LHR - KEF
1 stop8h 45mLufthansa
Deal found 15/4£190
Sun 12/1000:10KEF - LHR
1 stop20h 30mAustrian Airlines
Sun 19/1006:00LHR - KEF
1 stop18h 20mAustrian Airlines
Deal found 15/4£208
Wed 14/516:10KEF - LHR
Nonstop3h 10mIcelandair
Sat 17/521:25LHR - KEF
Nonstop3h 10mIcelandair
Deal found 15/4£219

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 16 April 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to London Heathrow Airport that are best for you.

Fly from

Keflavik Intl

Fly to

Heathrow

Route

Depart

Return

Price

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 7/5

10:55-15:10

Nonstop3h 15m

London Heathrow

Sun 11/5

07:25-09:30

Nonstop3h 05m

£138

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 14/5

11:05-18:50

1 stop6h 45m

London Heathrow

Sat 17/5

07:05-09:10

Nonstop3h 05m

£169

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 14/5

11:05-18:50

1 stop6h 45m

London Heathrow

Sat 17/5

10:20-16:50

1 stop7h 30m

£182

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 2/5

00:25-16:40

1 stop15h 15m

London Heathrow

Sat 10/5

16:25-00:10

1 stop8h 45m

£190

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sun 12/10

00:10-21:40

1 stop20h 30m

London Heathrow

Sun 19/10

06:00-23:20

1 stop18h 20m

£208

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 14/5

16:10-20:20

Nonstop3h 10m

London Heathrow

Sat 17/5

21:25-23:35

Nonstop3h 10m

£219

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 22/5

10:20-17:40

1 stop6h 20m

£76

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 7/5

10:55-15:10

Nonstop3h 15m

£97

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 28/5

08:05-22:35

1 stop13h 30m

£107

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 24/4

00:40-07:25

1 stop29h 45m

£111

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 16 results
1
2

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 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 Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport (average of £112). Flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport 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 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 16 April 2025.

When flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 46% versus a flight in the morning.

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 16 April 2025.

The most flights from KEF to LHR are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, 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 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 Heathrow Airport when rainfall is around 40.0 mm.

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 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 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 16 April 2025.
Get a feel of what it's like to fly with KLM, LOT and Austrian Airlines from Reykjavik to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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
1,323 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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
1,065 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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
7.6
Good
775 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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
1,580 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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
1,335 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

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 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?

    Cheapflights users have booked flights from Reykjavik Keflavik Intl Airport to London Heathrow Airport round-trip from £138. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from £182, and Lufthansa, from £190. British Airways is priced at 38% 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 cheapet airlines for a one-way flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport are Scandinavian Airlines (£76), British Airways (£97), and Eurowings (£111).

  • What are the most reliable airlines from Reykjavik Keflavik Intl Airport to London Heathrow 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 Reykjavik Keflavik Intl Airport to London Heathrow Airport on time: Emirates (100%), British Airways (93%), Qatar Airways (92%).

  • 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 £69. While the most popular route (Reykjavik Keflavik Intl - London Heathrow) can be booked for £135 on average our data indicates £601 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 holiday 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, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to London Heathrow Airport (average of £112). Flying from Reykjavik Keflavik Intl Airport to London Heathrow Airport 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
Luton
Slough
Croydon
Eastbourne
Wembley
Northampton
Hayes
Crawley
Southend-on-Sea
Maidstone
Swindon
Ipswich
Southall
Ilford
Winchester
Folkestone

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Keflavik Intl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Keflavik Intl to Gatwick flights
Keflavik Intl to Stansted flights
Keflavik Intl to Luton flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Keflavik Intl to Heathrow?

Cheapflights makes it easy to find Keflavik Intl to Heathrow 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 Keflavik Intl to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Keflavik Intl to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Keflavik Intl to Heathrow flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Keflavik Intl to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights