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Cheap flights from Iceland to London Heathrow Airport from £65

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 27/3. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Iceland to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Iceland to Heathrow
Explore the most affordable flight options available from Iceland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Fri 5/1218:10KEF - LHR
Nonstop3h 00mBritish Airways
Sun 7/1213:40LHR - KEF
Nonstop3h 25mBritish Airways
Deal found 4/12£137
Thu 4/1211:45KEF - LHR
Nonstop3h 10mBritish Airways
Mon 8/1207:35LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 4/12£187
Wed 31/1220:05KEF - LHR
1 stop14h 40mKLM
Wed 7/106:30LHR - KEF
1 stop12h 35mKLM
Deal found 3/12£213
Thu 25/1215:10KEF - LHR
1 stop7h 45mMultiple Airlines
Thu 1/120:05LHR - KEF
1 stop17h 15mMultiple Airlines
Deal found 4/12£236
Mon 22/1211:50KEF - LHR
Nonstop3h 10mMultiple Airlines
Mon 12/120:35LHR - KEF
Nonstop3h 20mMultiple Airlines
Deal found 4/12£263
Fri 12/1218:10KEF - LHR
Nonstop3h 00mBritish Airways
Sun 14/1213:40LHR - KEF
Nonstop3h 25mBritish Airways
Deal found 3/12£310
Thu 11/1216:20KEF - LHR
Nonstop3h 10mIcelandair
Sat 13/1220:35LHR - KEF
Nonstop3h 20mIcelandair
Deal found 3/12£322
Fri 5/1215:25KEF - LHR
1 stop6h 55mLufthansa
Sun 7/1206:30LHR - KEF
1 stop7h 50mLufthansa
Deal found 3/12£328
Thu 18/1216:20KEF - LHR
Nonstop3h 10mIcelandair
Mon 29/1220:35LHR - KEF
Nonstop3h 20mIcelandair
Deal found 4/12£337
Thu 11/1211:45KEF - LHR
Nonstop3h 10mBritish Airways
Thu 18/1207:25LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 4/12£340

Find flight deals from Iceland to Heathrow

Keep the following information in mind while searching for Iceland to Heathrow flight deals. Data was last updated 5 December 2025.

Round-trip from

£130

One-way from

£65

Popular in

June

Cheapest in

March

Average price

£145

Good round-trip deal

£648 or less

Good one-way deal

£167 or less
Icelandair
  • Icelandair
  • 16/1-20/1
  • Nonstop
  • 6h 30m total
  • Iceland to London
Search Deals
British Airways
  • British Airways
  • 27/3
  • Nonstop
  • 3h 10m total
  • Iceland to London
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Iceland to London Heathrow.
Search Deals
Price to beat on a one-way flight from Iceland to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Iceland 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 5 December 2025.
Use the filters below to find and compare flights from Iceland to London Heathrow Airport that are best for you.

Fly from

Iceland

Fly to

Heathrow

Route

Depart

Return

Price

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 19/1

20:05-16:05

1 stop20h 00m

London Heathrow

Mon 26/1

20:35-23:55

Nonstop3h 20m

£152

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 17/1

20:05-10:45

1 stop14h 40m

London Heathrow

Sat 24/1

20:35-23:55

Nonstop3h 20m

£166

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 11/3

20:05-09:00

1 stop12h 55m

London Heathrow

Sun 15/3

06:30-19:05

1 stop12h 35m

£174

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 22/1

20:00-07:40

1 stop11h 40m

London Heathrow

Sun 25/1

08:40-19:05

1 stop10h 25m

£175

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 5/2

11:45-14:55

Nonstop3h 10m

London Heathrow

Mon 9/2

07:35-10:55

Nonstop3h 20m

£178

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 19/1

20:05-13:50

1 stop17h 45m

London Heathrow

Mon 26/1

10:00-19:05

1 stop9h 05m

£187

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 22/1

11:30-17:40

1 stop6h 10m

London Heathrow

Wed 28/1

21:05-10:45

2 stops13h 40m

£188

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 20/3

15:40-09:20

1 stop17h 40m

London Heathrow

Sat 21/3

15:35-10:30

1 stop18h 55m

£191

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 20/3

18:10-21:10

Nonstop3h 00m

London Heathrow

Sat 21/3

10:35-10:30

1 stop23h 55m

£205

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 19/3

16:20-19:30

Nonstop3h 10m

London Heathrow

Sun 22/3

20:35-23:55

Nonstop3h 20m

£207

Flights are sorted by cheapest return flights first.

Deals found on 4/12

Showing 1-10 of 19 results
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Best time to book a flight from Iceland to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Iceland 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 Iceland to London Heathrow Airport

What is the cheapest month to book a flight from Iceland to London Heathrow Airport?

Currently, December is the cheapest month in which you can book a flight from Iceland to London Heathrow Airport (average of £136). Flying from Iceland to London Heathrow Airport in September is currently the most expensive (average of £270). 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 IS to LHR?

Find hourly flight availability from Iceland 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 5 December 2025.

When flying from Iceland to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Iceland to London Heathrow Airport

Explore weekly flight availability from Iceland 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 5 December 2025.

The most flights from IS0 to LHR are scheduled on a Monday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 on average).

How often are flights from Iceland to London delayed?

About 11% of weekly flights between Iceland and London have experienced delays in the past year, with the average delay time being 125 minutes.

What is the most punctual flight time for Iceland to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Iceland to London flights?

Over the past year, Icelandair have had the lowest number of delays on this route, with just 11% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Iceland to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Iceland to London Heathrow Airport?

    Airlines like KLM and British Airways fly from Iceland to London Heathrow Airport in about 3h 10m. The time it takes to get you to your destination can typically vary by up to 9h 45m. The distance from Iceland to London Heathrow Airport is about 1177 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Iceland 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 Iceland to London Heathrow Airport on time: Turkish Airlines (92%), Emirates (91%), Icelandair (90%).

  • What are the cheapest flights from Iceland to London Heathrow Airport?

    The cheapest flight price from Iceland to London Heathrow Airport is £70. On average you can expect to pay £486. The most popular route, (Reykjavik Keflavik Intl - London Heathrow), can usually be booked for £127.

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

    Yes. In addition to deals on Iceland to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Iceland to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Iceland 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 Iceland to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Iceland to London Heathrow Airport (average of £136). Flying from Iceland to London Heathrow Airport in September is currently the most expensive (average of £270). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
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Luton
Ilford
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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 Iceland to Heathrow?

Cheapflights makes it easy to find Iceland 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 Iceland to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Iceland to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Iceland to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Iceland to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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