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Cheap flights from Iceland to London Heathrow Airport from £131

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
31 Aug — 7 Sep1
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 1 August 2026.

Sat 21/1117:05
KEF
-
LHR
1 stop16h 30m
Multiple Airlines
Sun 22/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 30/7£156
Sat 14/1117:05
KEF
-
LHR
1 stop16h 30m
Scandinavian Airlines
Tue 24/1117:30
LHR
-
KEF
1 stop17h 15m
Scandinavian Airlines
Deal found 30/7£160
Sat 14/1117:05
KEF
-
LHR
1 stop16h 30m
Multiple Airlines
Tue 24/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 30/7£162
Sat 21/1117:05
KEF
-
LHR
1 stop16h 30m
Multiple Airlines
Sat 28/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 28/7£166
Wed 2/920:00
KEF
-
LHR
1 stop10h 40m
KLM
Sun 6/906:30
LHR
-
KEF
1 stop26h 20m
KLM
Deal found 28/7£168
Fri 13/1111:35
KEF
-
LHR
1 stop22h 00m
Multiple Airlines
Sun 22/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 27/7£173
Fri 13/1111:35
KEF
-
LHR
1 stop22h 00m
Multiple Airlines
Fri 20/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 31/7£175
Sat 21/1117:05
KEF
-
LHR
1 stop16h 30m
Scandinavian Airlines
Sat 28/1106:40
LHR
-
KEF
1 stop29h 00m
Scandinavian Airlines
Deal found 28/7£175
Fri 20/1118:05
KEF
-
LHR
1 stop15h 15m
Multiple Airlines
Sat 21/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 30/7£177
Fri 13/1111:35
KEF
-
LHR
1 stop22h 00m
Multiple Airlines
Mon 23/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Deal found 29/7£178
Thu 19/1114:45
KEF
-
LHR
1 stop16h 55m
KLM
Sun 22/1106:30
LHR
-
KEF
1 stop7h 15m
KLM
Deal found 30/7£179
Sat 21/1116:05
KEF
-
LHR
Nonstop3h 00m
British Airways
Fri 27/1107:35
LHR
-
KEF
Nonstop3h 20m
British Airways
Deal found 29/7£183

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 1 August 2026.

Round-trip from

£156

One-way from

£131

Popular in

June

Cheapest in

November

Average price

£282

Good round-trip deal

£746 or less

Good one-way deal

£217 or less
Icelandair
  • Icelandair
  • 21/11-22/11
  • 1 total stop
  • 19h 45m total
  • Iceland to London
Search Deals
British Airways
  • British Airways
  • 26/10
  • Nonstop
  • 3h 10m total
  • Iceland to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 1 August 2026.
Use the filters below to find and compare flights from Iceland to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Tue 12/1

14:45-07:40

1 stop16h 55m

London Heathrow

Sat 23/1

06:30-13:45

1 stop7h 15m

£178

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 23/11

14:45-07:40

1 stop16h 55m

London Heathrow

Sun 29/11

06:30-13:45

1 stop7h 15m

£200

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 17/9

19:15-07:40

1 stop11h 25m

London Heathrow

Thu 24/9

20:55-07:50

1 stop11h 55m

£210

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 14/11

17:05-10:45

2 stops17h 40m

London Heathrow

Tue 24/11

06:30-13:45

1 stop7h 15m

£246
Fastest return journey

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sun 20/9

10:20-14:30

Nonstop3h 10m

London Heathrow

Wed 23/9

07:55-10:00

Nonstop3h 05m

£306

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 10/9

10:40-14:50

Nonstop3h 10m

London Heathrow

Sun 13/9

07:25-09:30

Nonstop3h 05m

£310

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Tue 24/11

12:10-20:50

2 stops8h 40m

London Heathrow

Sat 28/11

16:25-11:40

2 stops19h 15m

£312

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 19/9

07:40-11:55

Nonstop3h 15m

London Heathrow

Sun 20/9

06:30-07:50

1 stop26h 20m

£337

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 7/10

20:00-16:15

1 stop19h 15m

London Heathrow

Fri 16/10

06:30-16:45

2 stops11h 15m

£341
Cheapest one-way

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sun 11/10

00:55-16:25

1 stop14h 30m

£134

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 21 resultsSorted by cheapest first
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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 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 1 August 2026.

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 1 August 2026.

The most flights from IS0 to LHR are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Iceland to London delayed?

About 8% of weekly flights between Iceland and London have experienced delays in the past year, with the average delay time being 124 minutes.

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

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

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

Tuesday tends to have the lowest number of delays on this route, whereas Thursday 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 7% 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 fly from Iceland to London Heathrow Airport in about 16h 55m. The time it takes to get you to your destination can typically vary by up to . The distance from Iceland to London Heathrow Airport is about 1177 mi.

  • 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: TAP AIR PORTUGAL (85%), Icelandair (84%), Emirates (84%).

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

    The cheapest flight price from Iceland to London Heathrow Airport is £124. On average you can expect to pay £520. The most popular route, (Reykjavik Keflavik Intl - London Heathrow), can usually be booked for £169.

  • 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.

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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Enfield
Kingston upon Thames
Poole
Southall

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Alternative routes for Iceland to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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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