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Cheap flights from London Heathrow Airport to Iceland from £136

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Iceland

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Iceland
Explore the most affordable flight options available from Heathrow to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 August 2026.

Tue 3/1107:35 -
Nonstop3h 20m
Fri 6/1118:10 -
Nonstop3h 00m
Deal found 6/8£204
Tue 27/1019:50 -
1 stop14h 55m
Thu 29/1018:05 -
1 stop27h 35m
Deal found 6/8£204
Mon 2/1120:35 -
Nonstop3h 15m
Fri 6/1111:35 -
1 stop22h 00m
Deal found 8/8£205
Mon 2/1120:35 -
Nonstop3h 15m
Fri 13/1100:55 -
1 stop8h 40m
Deal found 6/8£207
Mon 14/920:05 -
1 stop13h 30m
Tue 29/916:10 -
2 stops17h 30m
Deal found 5/8£207
Thu 1/1021:25 -
Nonstop3h 10m
Sun 4/1007:40 -
Nonstop3h 15m
Deal found 6/8£208
Fri 2/1021:25 -
Nonstop3h 10m
Sun 4/1007:40 -
Nonstop3h 15m
Deal found 8/8£209
Tue 3/1117:30 -
1 stop17h 15m
Sun 8/1116:20 -
Nonstop3h 10m
Deal found 5/8£210
Sun 1/1120:35 -
Nonstop3h 15m
Thu 5/1116:20 -
Nonstop3h 10m
Deal found 6/8£210
Thu 24/920:55 -
1 stop11h 55m
Wed 30/920:00 -
1 stop10h 40m
Deal found 6/8£211
Thu 1/1021:25 -
Nonstop3h 10m
Fri 13/1116:20 -
Nonstop3h 10m
Deal found 6/8£212

Find flight deals from Heathrow to Iceland

Keep the following information in mind while searching for Heathrow to Iceland flight deals. Data was last updated 10 August 2026.

Round-trip from

£204

One-way from

£136

Popular in

July

Cheapest in

January

Average price

£281

Good round-trip deal

£417 or less

Good one-way deal

£286 or less
British Airways
  • British Airways
  • 3/11-6/11
  • Nonstop
  • 6h 20m total
  • London to Iceland
Search Deals
3/10
  • 3/10
  • 2 total stops
  • 25h 00m total
  • London to Iceland
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£7 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 London Heathrow to Iceland.
Search Deals
Price to beat on a one-way flight from London Heathrow to Iceland.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Iceland 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 10 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Sun 1/11

20:35-23:50

Nonstop3h 15m

Reykjavik Keflavik Intl

Thu 5/11

16:20-19:30

Nonstop3h 10m

£211

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Thu 1/10

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Sat 10/10

16:10-20:20

Nonstop3h 10m

£245

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Mon 2/11

20:25-13:45

1 stop17h 20m

Reykjavik Keflavik Intl

Fri 6/11

11:35-20:50

2 stops9h 15m

£268
Fastest return journey

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Thu 8/10

07:35-09:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Wed 21/10

11:00-15:10

Nonstop3h 10m

£273

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Fri 27/11

10:20-17:20

1 stop7h 00m

Reykjavik Keflavik Intl

Mon 30/11

18:05-09:20

1 stop15h 15m

£276

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Fri 2/10

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Sun 11/10

16:10-20:20

Nonstop3h 10m

£305

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Wed 28/10

06:30-13:45

1 stop7h 15m

Reykjavik Keflavik Intl

Sat 7/11

17:05-10:45

2 stops17h 40m

£317

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Wed 23/9

10:20-16:45

1 stop7h 25m

Reykjavik Keflavik Intl

Wed 30/9

17:35-21:40

1 stop27h 05m

£334

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Fri 16/10

06:30-16:45

2 stops11h 15m

Reykjavik Keflavik Intl

Sun 18/10

19:15-07:40

1 stop11h 25m

£352

LondonReykjavik

LHR London Heathrow - KEF Reykjavik Keflavik Intl

LHRKEF

London Heathrow

Thu 1/10

11:45-18:15

1 stop7h 30m

Reykjavik Keflavik Intl

Wed 7/10

20:00-09:00

1 stop12h 00m

£361

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Iceland

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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iceland (average of £175). Flying from London Heathrow Airport to Iceland in August is currently the most expensive (average of £360). 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 LHR to IS?

Find hourly flight availability from Heathrow to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 August 2026.

When flying from London Heathrow Airport to Iceland, 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 London Heathrow Airport to Iceland

Explore weekly flight availability from Heathrow to Iceland. 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 10 August 2026.

The most flights from LHR to IS0 are scheduled on a Friday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

How often are flights from London to Iceland delayed?

About 10% of weekly flights between London and Iceland have experienced delays in the past year, with the average delay time being 109 minutes.

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

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon 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 Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 9% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to Iceland?

The price you pay for your flight from London Heathrow Airport to Iceland may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Iceland

Get insights into the airlines that provide service to Iceland. 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 Iceland. Reviews last updated 10 August 2026.
Check out reviews from past customers who have flown with Scandinavian Airlines,Icelandair, andeasyJet from London Heathrow Airport to Iceland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,935 reviews
Check prices

Boarding

7.7

Crew

8.0

Food

6.8

Overall

7.4

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

VIE - CPH

It’s 2026 and traveling in economy absolutely sucks. Some airlines make a tiny effort to appear a little more conscientious (Emirates e.g.), but SAS seems to have cut every corner possible in order to increase profit and screw over customers. This is the shitty world we live in. Travel used to be seen as a luxury. Nowadays, traveling in economy class feels like abuse. Like you’re being punished for not coughing up enough money. Despicable.
Scandinavian Airlines
7.4
Good
1,935 reviews
Scandinavian Airlines
7.4
Good
1,935 reviews
Check prices

Boarding

7.7

Crew

8.0

Food

6.8

Overall

7.4

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

VIE - CPH

It’s 2026 and traveling in economy absolutely sucks. Some airlines make a tiny effort to appear a little more conscientious (Emirates e.g.), but SAS seems to have cut every corner possible in order to increase profit and screw over customers. This is the shitty world we live in. Travel used to be seen as a luxury. Nowadays, traveling in economy class feels like abuse. Like you’re being punished for not coughing up enough money. Despicable.
Icelandair
6.9
Okay
728 reviews
Scandinavian Airlines
7.4
Good
1,935 reviews
Check prices

Boarding

7.7

Crew

8.0

Food

6.8

Overall

7.4

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

VIE - CPH

It’s 2026 and traveling in economy absolutely sucks. Some airlines make a tiny effort to appear a little more conscientious (Emirates e.g.), but SAS seems to have cut every corner possible in order to increase profit and screw over customers. This is the shitty world we live in. Travel used to be seen as a luxury. Nowadays, traveling in economy class feels like abuse. Like you’re being punished for not coughing up enough money. Despicable.
easyJet
6.9
Okay
1,921 reviews
Scandinavian Airlines
7.4
Good
1,935 reviews
Check prices

Boarding

7.7

Crew

8.0

Food

6.8

Overall

7.4

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

VIE - CPH

It’s 2026 and traveling in economy absolutely sucks. Some airlines make a tiny effort to appear a little more conscientious (Emirates e.g.), but SAS seems to have cut every corner possible in order to increase profit and screw over customers. This is the shitty world we live in. Travel used to be seen as a luxury. Nowadays, traveling in economy class feels like abuse. Like you’re being punished for not coughing up enough money. Despicable.
British Airways
6.7
Okay
8,153 reviews
Scandinavian Airlines
7.4
Good
1,935 reviews
Check prices

Boarding

7.7

Crew

8.0

Food

6.8

Overall

7.4

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

VIE - CPH

It’s 2026 and traveling in economy absolutely sucks. Some airlines make a tiny effort to appear a little more conscientious (Emirates e.g.), but SAS seems to have cut every corner possible in order to increase profit and screw over customers. This is the shitty world we live in. Travel used to be seen as a luxury. Nowadays, traveling in economy class feels like abuse. Like you’re being punished for not coughing up enough money. Despicable.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Iceland. 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 London Heathrow Airport to Iceland?

    For as low as £273, Icelandair can have you in Iceland from London Heathrow Airport in 3h 05m. Airlines will cover a distance of 1177 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from London Heathrow Airport to Iceland?

    The top 3 most reliable airlines when flying from London Heathrow Airport to Iceland are Icelandair (85%), Emirates (85%) and Air India (85%).

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

    Looking for the cheapest flight from London Heathrow Airport to Iceland? While on average our users pay £734, our data indicates the cheapest price to be £145. The most popular route (London Heathrow - Reykjavik Keflavik Intl), is priced around £110.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iceland (average of £175). Flying from London Heathrow Airport to Iceland in August is currently the most expensive (average of £360). 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

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Alternative routes for Heathrow to Iceland

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Top 3 airlines flying from Heathrow to Iceland

Discover the top 3 airlines that operate flights from Heathrow to Iceland. 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 858,174 searches. Data last updated 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£119Average£271FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£131Average£231FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£167Average£345FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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 Heathrow to Iceland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Iceland from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Iceland?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Iceland 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 Heathrow to Iceland with no change fees?

Certainly. Search results for flights to Iceland from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Heathrow to Iceland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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