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Cheap flights from London Heathrow Airport to Iceland from £63

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Heathrow to Iceland

Keep the following information in mind while searching for Heathrow to Iceland flight deals. Data was last updated 17 September 2025.

Round-trip from

£113

One-way from

£63

Popular in

July

Cheapest in

January

Average price

£142

Good round-trip deal

£268 or less

Good one-way deal

£437 or less
Icelandair
  • Icelandair
  • 21/11-29/11
  • Nonstop
  • 6h 35m total
  • London to Iceland
Search Deals
Icelandair
  • Icelandair
  • 15/11
  • Nonstop
  • 3h 20m total
  • London to Iceland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£35 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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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

Find flight deals from Heathrow to Iceland

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 17 September 2025.

Fri 21/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Sat 29/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 15/9£113
Fri 14/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Sun 16/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 15/9£114
Mon 8/1220:35LHR - KEF
Nonstop3h 20mIcelandair
Fri 12/1216:20KEF - LHR
Nonstop3h 10mIcelandair
Deal found 14/9£114
Wed 8/1007:55LHR - KEF
Nonstop3h 05mBritish Airways
Mon 17/1111:50KEF - LHR
Nonstop3h 10mBritish Airways
Deal found 15/9£115
Mon 10/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Tue 18/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 14/9£116
Fri 5/1220:35LHR - KEF
Nonstop3h 20mIcelandair
Wed 10/1216:20KEF - LHR
Nonstop3h 10mIcelandair
Deal found 14/9£117
Sun 7/1220:35LHR - KEF
Nonstop3h 20mIcelandair
Mon 15/1207:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 14/9£117
Sun 2/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Fri 7/1116:20KEF - LHR
Nonstop3h 10mIcelandair
Deal found 14/9£118
Fri 7/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Mon 10/1107:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 14/9£119
Fri 5/1213:50LHR - KEF
Nonstop3h 25mBritish Airways
Mon 15/1211:50KEF - LHR
Nonstop3h 10mBritish Airways
Deal found 14/9£120
Thu 30/1007:25LHR - KEF
Nonstop3h 20mBritish Airways
Thu 6/1111:45KEF - LHR
Nonstop3h 10mBritish Airways
Deal found 15/9£120
Thu 20/1120:35LHR - KEF
Nonstop3h 20mIcelandair
Mon 1/1207:35KEF - LHR
Nonstop3h 15mIcelandair
Deal found 15/9£121

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 17 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Iceland that are best for you.

Fly from

Heathrow

Fly to

Iceland

Route

Depart

Return

Price

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 6/11

07:25-10:45

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 10/11

11:50-15:00

Nonstop3h 10m

£120

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 5/11

07:30-10:50

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 9/11

17:55-20:55

Nonstop3h 00m

£120

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 7/12

13:40-17:05

Nonstop3h 25m

Reykjavik Keflavik Intl

Tue 16/12

11:50-15:00

Nonstop3h 10m

£120

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 13/11

07:25-10:45

Nonstop3h 20m

Reykjavik Keflavik Intl

Fri 28/11

18:10-21:10

Nonstop3h 00m

£131

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 1/3

12:15-15:30

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 8/3

07:35-10:50

Nonstop3h 15m

£131

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 3/3

12:15-15:30

Nonstop3h 15m

Reykjavik Keflavik Intl

Sun 8/3

07:35-10:50

Nonstop3h 15m

£131

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 27/2

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sat 7/3

07:35-10:50

Nonstop3h 15m

£136

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 8/2

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 16/2

16:20-19:30

Nonstop3h 10m

£142

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 16/11

07:20-10:40

Nonstop3h 20m

Reykjavik Keflavik Intl

Fri 21/11

18:10-21:10

Nonstop3h 00m

£153

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 18/11

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 23/11

17:55-20:55

Nonstop3h 00m

£164

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 22 results
1
2
3

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 £75). Flying from London Heathrow Airport to Iceland in July is currently the most expensive (average of £289). 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 17 September 2025.

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 17 September 2025.

The most flights from LHR to IS0 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).

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 17 September 2025.
Check out reviews from past customers who have flown with Scandinavian Airlines, Icelandair, andPLAY 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
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
544 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
PLAY
7.0
Good
Scandinavian Airlines
7.4
Good
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
easyJet
6.9
Okay
1,820 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
British Airways
6.7
Okay
7,363 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews
Check prices

Entertainment

6.6

Crew

8.0

Boarding

7.6

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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 £131, British Airways can have you in Iceland from London Heathrow Airport in 3h 15m. Airlines will cover a distance of 1177 mi. Generally, flights for this route are direct.

  • 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 Emirates (86%), American Airlines (85%) and Qatar Airways (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 £787, our data indicates the cheapest price to be £104. The most popular route (London Heathrow - Reykjavik Keflavik Intl), is priced around £103.

  • 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 £75). Flying from London Heathrow Airport to Iceland in July is currently the most expensive (average of £289). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Heathrow to Iceland

Discover the top 4 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£84Average£149FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
British AirwaysCheapest£116Average£211FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£131Average£323FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£133Average£269FlexibilityNo 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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