Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Reykjavik Keflavik Intl Airport to London Heathrow Airport from £90

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
8 7月 — 15 7月1
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 3 7月 2025.

Round-trip from

£132

One-way from

£90

Popular in

April

Cheapest in

March

Average price

£288

Good round-trip deal

£227 or less

Good one-way deal

£183 or less
British Airways
  • British Airways
  • 28/11-30/11
  • Nonstop
  • 6h 20m total
  • Reykjavik to London
Scandinavian Airlines
  • Scandinavian Airlines
  • 11/10
  • 2 total stops
  • 14h 45m total
  • Reykjavik to London
Highest demand for flights based on searches. 11% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Reykjavik Keflavik Intl to London Heathrow.
Price to beat on a one-way flight from Reykjavik Keflavik Intl to London Heathrow.

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 3 7月 2025.

週五 28/1118:45KEF - LHR
Nonstop3h 00mBritish Airways
週日 30/1107:20LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 1/7£132
週三 15/1010:20KEF - LHR
1 stop10h 20mScandinavian Airlines
週三 22/1017:00LHR - KEF
1 stop17h 30mScandinavian Airlines
Deal found 2/7£148
週三 15/1010:20KEF - LHR
1 stop7h 10mMultiple Airlines
週三 22/1007:55LHR - KEF
Nonstop3h 05mMultiple Airlines
Deal found 2/7£198
週日 28/900:10KEF - LHR
1 stop7h 50mAustrian Airlines
週二 21/1010:25LHR - KEF
1 stop13h 55mAustrian Airlines
Deal found 1/7£218
週一 29/916:10KEF - LHR
Nonstop3h 10mIcelandair
週三 22/1021:25LHR - KEF
Nonstop3h 10mIcelandair
Deal found 1/7£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 3 7月 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

週五 28/11

18:45-21:45

Nonstop3h 00m

London Heathrow

週日 30/11

07:20-10:40

Nonstop3h 20m

£132

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週三 15/10

10:20-21:40

1 stop10h 20m

London Heathrow

週三 22/10

17:00-09:30

1 stop17h 30m

£148

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週三 15/10

10:20-18:30

1 stop7h 10m

London Heathrow

週三 22/10

07:55-10:00

Nonstop3h 05m

£198

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週日 28/9

00:10-09:00

1 stop7h 50m

London Heathrow

週二 21/10

10:25-23:20

1 stop13h 55m

£218

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週一 29/9

16:10-20:20

Nonstop3h 10m

London Heathrow

週三 22/10

21:25-23:35

Nonstop3h 10m

£219

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週六 11/10

17:10-08:55

2 stops14h 45m

£90

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週四 27/11

11:40-14:55

Nonstop3h 15m

£95

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週四 7/8

00:40-07:25

1 stop5h 45m

£108

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

週三 27/8

08:05-21:40

1 stop12h 35m

£114

Flights are sorted by cheapest return flights first.

Deals found on 1/7

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 3 7月 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 39% 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 3 7月 2025.

The most flights from KEF to LHR are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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 3 7月 2025.
Get a feel of what it's like to fly with Austrian Airlines, Scandinavian Airlines, andIcelandair from Reykjavik Keflavik Intl Airport to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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 £132. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from £148, and Austrian Airlines, from £218. British Airways is priced at 46% 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 (£90), British Airways (£95), and Eurowings (£108).

  • 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%), American Airlines (89%), Qatar Airways (89%).

  • 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 £54. While the most popular route (Reykjavik Keflavik Intl - London Heathrow) can be booked for £132 on average our data indicates £256 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
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

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.

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.