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Cheap flights from Iceland to London Heathrow Airport from £66

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Iceland to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Iceland (IS0) 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 17 January 2025.

Round-trip from

£133

One-way from

£66
British Airways
  • British Airways
  • 7/2-9/2
  • Nonstop
  • 6h 20m total
  • Iceland to London
Search Deals
British Airways
  • British Airways
  • 1/5
  • Nonstop
  • 3h 10m total
  • Iceland to London
Search Deals

Find flight deals from Iceland to Heathrow

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 17 January 2025.

Fri 7/218:45KEF - LHR
Nonstop3h 00mBritish Airways
Sun 9/207:20LHR - KEF
Nonstop3h 20mBritish Airways
Deal found 17/1£133
Thu 27/316:20KEF - LHR
Nonstop3h 10mIcelandair
Wed 2/421:25LHR - KEF
Nonstop3h 10mIcelandair
Deal found 17/1£150
Mon 10/315:10KEF - LHR
1 stop6h 25mMultiple Airlines
Tue 11/320:40LHR - KEF
Nonstop3h 15mMultiple Airlines
Deal found 16/1£160
Mon 10/311:30KEF - LHR
1 stop6h 10mScandinavian Airlines
Mon 10/321:05LHR - KEF
2 stops13h 55mScandinavian Airlines
Deal found 16/1£168
Fri 31/114:55KEF - LHR
1 stop7h 20mLufthansa
Sun 2/207:30LHR - KEF
1 stop6h 45mLufthansa
Deal found 17/1£218
Sat 1/214:20KEF - LHR
1 stop7h 20mSWISS
Wed 5/206:00LHR - KEF
1 stop7h 20mSWISS
Deal found 16/1£233
Sat 7/600:10KEF - LHR
1 stop20h 30mAustrian Airlines
Fri 27/606:00LHR - KEF
1 stop18h 20mAustrian Airlines
Deal found 16/1£235

Find flights from Iceland to Heathrow within your budget

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 7/2

18:45-21:45

Nonstop3h 00m

London Heathrow

Sun 9/2

07:20-10:40

Nonstop3h 20m

£133

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 27/3

16:20-19:30

Nonstop3h 10m

London Heathrow

Wed 2/4

21:25-23:35

Nonstop3h 10m

£150

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 10/3

15:10-21:35

1 stop6h 25m

London Heathrow

Tue 11/3

20:40-23:55

Nonstop3h 15m

£160

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Mon 10/3

11:30-17:40

1 stop6h 10m

London Heathrow

Mon 10/3

21:05-11:00

2 stops13h 55m

£168

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Fri 31/1

14:55-22:15

1 stop7h 20m

London Heathrow

Sun 2/2

07:30-14:15

1 stop6h 45m

£218

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 1/2

14:20-21:40

1 stop7h 20m

London Heathrow

Wed 5/2

06:00-13:20

1 stop7h 20m

£233

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Sat 7/6

00:10-21:40

1 stop20h 30m

London Heathrow

Fri 27/6

06:00-23:20

1 stop18h 20m

£235

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 1/5

10:30-14:40

Nonstop3h 10m

£66

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Thu 3/4

11:05-21:35

1 stop9h 30m

£69

ReykjavikLondon

KEF - LHR

KEFLHR

Reykjavik Keflavik Intl

Wed 5/2

17:55-14:25

1 stop20h 30m

£94

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 17 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.

Travel insights for flights from Iceland to Heathrow

Get recent, data-driven insights about flights from Iceland to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Iceland to London Heathrow Airport (average of £112). Flying from Iceland to London Heathrow Airport in August is currently the most expensive (average of £161). 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 17 January 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 17 January 2025.

The most flights from IS0 to LHR are scheduled on a Friday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 17 January 2025.
Read reviews from past customers who have flown Icelandair, British Airways and Scandinavian Airlines from Iceland to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
786 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,598 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,487 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Scandinavian Airlines
7.3
Good
1,309 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

  • What are the cheapest airlines to fly from Iceland to London Heathrow Airport one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £66. Users have also found prices from £69 and £97 on Scandinavian Airlines and Iberia, respectively.

  • 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: Emirates (100%), Turkish Airlines (77%), Icelandair (74%).

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

    The cheapest flight price from Iceland to London Heathrow Airport is £66. On average you can expect to pay £495. The most popular route, (Reykjavik Keflavik Intl - London Heathrow), can usually be booked for £135.

  • 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, January is the cheapest month in which you can book a flight from Iceland to London Heathrow Airport (average of £112). Flying from Iceland to London Heathrow Airport in August is currently the most expensive (average of £161). 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 Iceland?

Book flights to Iceland if you plan to visit one of these locations
Deal
Hounslow
Gatwick
Milton Keynes
Croydon
Luton
Slough
Ilford
Hayes
Eastbourne
Northampton
Swindon
Maidstone
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall

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Fly with Cheapflights

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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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