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

Airlines like Scandinavian Airlines, KLM, and Icelandair fly from Iceland to London Heathrow Airport in about 3h 15m. The time it takes to get you to your destination can typically vary by up to 13h 40m. The distance from Iceland to London Heathrow Airport is about 1177 mi. This flight may include one or multiple stops.

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.

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).

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

The cheapest flight price from Iceland to London Heathrow Airport is £72. On average you can expect to pay £226. The most popular route, (Reykjavik Keflavik Intl - London Heathrow), can usually be booked for £150.

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 (87%), Icelandair (85%), Emirates (85%).

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.

£77+ Cheap Flights from Iceland to London Heathrow Airport

Cheap flight deals from Iceland to Heathrow

Enter your travel dates to find the best prices.

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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 22 September 2026.

Wed 4/1111:55 -

1 stop21h 40m

Wed 11/1120:35 -

Nonstop3h 15m

Deal found 20/9£164

Wed 4/1111:55 -

1 stop21h 40m

Fri 20/1120:35 -

Nonstop3h 15m

Deal found 19/9£169

Fri 27/1114:45 -

1 stop6h 05m

Sun 29/1107:30 -

Nonstop3h 15m

Deal found 17/9£170

Tue 10/1111:55 -

1 stop6h 55m

Fri 13/1120:35 -

Nonstop3h 15m

Deal found 17/9£170

Tue 24/1111:55 -

1 stop21h 40m

Fri 27/1120:35 -

Nonstop3h 15m

Deal found 19/9£173

Wed 4/1116:20 -

Nonstop3h 10m

Wed 11/1120:35 -

Nonstop3h 15m

Deal found 20/9£174

Tue 3/1118:05 -

2 stops18h 50m

Tue 10/1120:35 -

Nonstop3h 15m

Deal found 19/9£176

Fri 13/1111:55 -

1 stop21h 40m

Sun 15/1106:40 -

1 stop10h 40m

Deal found 19/9£178

Wed 4/1111:55 -

1 stop21h 40m

Wed 11/1106:40 -

1 stop10h 40m

Deal found 20/9£179

Find flight deals from Iceland to Heathrow

Round-trip from	£150
One-way from	£77
Popular in	April
Cheapest in	December
Average price	£209
Good one-way deal	£166 or less

British Airways
22/1-30/1
Nonstop
6h 25m total
Iceland to London

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KLM
16/12-31/12
1 total stop
6h 05m total
Iceland to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£34 potential increase over avg. return price).

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Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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Price to beat on a one-way flight from Iceland to London Heathrow.

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Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Wed 16/12

14:45-20:50

1 stop6h 05m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£77

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Wed 17/3

14:45-10:45

1 stop20h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£77

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Wed 18/11

14:45-09:00

1 stop18h 15m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£90

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Sun 13/12

14:45-07:40

1 stop16h 55m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£91

Fastest return journey

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Sat 20/3

16:05-19:05

Nonstop3h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£113

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Thu 17/12

16:45-19:45

Nonstop3h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£113

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Fri 19/3

18:10-21:10

Nonstop3h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£113

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Fri 20/11

18:10-21:10

Nonstop3h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£113

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Wed 17/3

11:45-14:55

Nonstop3h 10m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£113

ReykjavikLondon

KEF Reykjavik Keflavik Intl - LHR London Heathrow

KEFLHR

Reykjavik Keflavik Intl

Sat 19/12

18:05-14:25

1 stop20h 20m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£131

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 23 resultsSorted by cheapest first

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.

KEF-LHR

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

IS0-LHR

KEF-LHR

What is the cheapest time of day to fly from IS to LHR?

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.

How often are flights from Iceland to London delayed?

About 9% of weekly flights between Iceland and London have experienced delays in the past year, with the average delay time being 121 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 8% of flights being delayed.

Related info for your journey

How long is the flight from Iceland to London Heathrow Airport?
Airlines like Scandinavian Airlines, KLM, and Icelandair fly from Iceland to London Heathrow Airport in about 3h 15m. The time it takes to get you to your destination can typically vary by up to 13h 40m. 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: TAP AIR PORTUGAL (87%), Icelandair (85%), Emirates (85%).
What are the cheapest flights from Iceland to London Heathrow Airport?
The cheapest flight price from Iceland to London Heathrow Airport is £72. On average you can expect to pay £226. The most popular route, (Reykjavik Keflavik Intl - London Heathrow), can usually be booked for £150.
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.

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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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Cheap flights from Iceland to London Heathrow Airport from £77

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Iceland to Heathrow

Cheapest flights from Iceland to HeathrowExplore 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 22 September 2026.

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 22 September 2026.

Best flights from Iceland to HeathrowDiscover carefully curated flight deals from Iceland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Discover carefully curated flight deals from Iceland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Direct flights from Iceland to HeathrowExplore direct flight options from Iceland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 September 2026.

Explore direct flight options from Iceland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 September 2026.

Last-minute flights from Iceland to HeathrowDiscover last-minute flight deals from Iceland to Heathrow. Data last updated 22 September 2026 and is based on user searches.

Discover last-minute flight deals from Iceland to Heathrow. Data last updated 22 September 2026 and is based on user searches.

One-way flights from Iceland to HeathrowSearch for one-way flight options from Iceland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.

Search for one-way flight options from Iceland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.

Find flight deals from Iceland to Heathrow

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

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.

Cheapflights Insights

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 22 September 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.

How often are flights from Iceland to London delayed?

About 9% of weekly flights between Iceland and London have experienced delays in the past year, with the average delay time being 121 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 8% of flights being delayed.

Related info for your journey

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

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

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

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

How can I find direct flights from Iceland to Heathrow?

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Iceland to Heathrow

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Complete your trip

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Other flights to Heathrow

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

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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 22 September 2026.

Best flights from Iceland to Heathrow
Discover carefully curated flight deals from Iceland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Direct flights from Iceland to Heathrow
Explore direct flight options from Iceland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 September 2026.

Last-minute flights from Iceland to Heathrow
Discover last-minute flight deals from Iceland to Heathrow. Data last updated 22 September 2026 and is based on user searches.

One-way flights from Iceland to Heathrow
Search for one-way flight options from Iceland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.