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Cheap flights from London Heathrow Airport to Iceland from £73

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
30 Mar — 6 Apr1
1 adult

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 25 March 2025.

Round-trip from

£94

One-way from

£73

Popular in

October

Cheapest in

January

Average price

£240

Good round-trip deal

£356 or less

Good one-way deal

£395 or less
Icelandair
  • Icelandair
  • 8/5-15/5
  • Nonstop
  • 6h 20m total
  • London to Iceland
Search Deals
British Airways
  • British Airways
  • 18/5
  • Nonstop
  • 3h 05m total
  • London to Iceland
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from London Heathrow to Iceland.
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Price to beat on a one-way flight from London Heathrow to Iceland.
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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 25 March 2025.

Thu 8/521:25LHR - KEF
Nonstop3h 10mIcelandair
Thu 15/516:10KEF - LHR
Nonstop3h 10mIcelandair
Deal found 23/3£94
Mon 8/1207:35LHR - KEF
Nonstop3h 20mBritish Airways
Sat 13/1211:50KEF - LHR
Nonstop3h 15mBritish Airways
Deal found 24/3£116
Mon 14/407:05LHR - KEF
1 stop10h 45mScandinavian Airlines
Wed 16/411:05KEF - LHR
1 stop9h 30mScandinavian Airlines
Deal found 24/3£133
Wed 7/521:25LHR - KEF
Nonstop3h 10mMultiple Airlines
Wed 21/511:05KEF - LHR
1 stop6h 45mMultiple Airlines
Deal found 24/3£142
Thu 8/519:30LHR - KEF
1 stop29h 05mLufthansa
Mon 12/500:25KEF - LHR
1 stop6h 15mLufthansa
Deal found 24/3£200

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 25 March 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 8/5

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Thu 15/5

16:10-20:20

Nonstop3h 10m

£94

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 14/4

07:05-16:50

1 stop10h 45m

Reykjavik Keflavik Intl

Wed 16/4

11:05-21:35

1 stop9h 30m

£133

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 7/5

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Wed 21/5

11:05-18:50

1 stop6h 45m

£142

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 1/5

07:35-09:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Sat 10/5

10:00-14:10

Nonstop3h 10m

£179

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 8/5

19:30-23:35

1 stop29h 05m

Reykjavik Keflavik Intl

Mon 12/5

00:25-07:40

1 stop6h 15m

£200

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 9/5

20:05-14:00

1 stop18h 55m

Reykjavik Keflavik Intl

Sat 17/5

14:50-07:55

1 stop16h 05m

£219

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 18/5

07:25-09:30

Nonstop3h 05m

£73

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 6/6

21:25-23:35

Nonstop3h 10m

£75

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 10/4

19:50-07:00

1 stop12h 10m

£84

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 7/5

20:45-09:05

1 stop13h 20m

£112

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 15 results
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 £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 25 March 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 25 March 2025.

The most flights from LHR to IS0 are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Iceland by month

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

In terms of precipitation, rainfall in Iceland ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. May is typically the driest time to visit Iceland when rainfall is around 40.0 mm.

Temperature in Iceland by month

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

If weather is an important factor for your trip to Iceland, 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 11.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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 25 March 2025.
See what other customers who have flown with SWISS, Air France and Scandinavian Airlines from London to Iceland have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.
SWISS
7.5
Good
1,569 reviews
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.
Air France
7.4
Good
1,423 reviews
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.
Scandinavian Airlines
7.3
Good
1,325 reviews
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.
TAP AIR PORTUGAL
7.1
Good
1,825 reviews
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.
Icelandair
7.0
Good
474 reviews
SWISS
7.5
Good
1,569 reviews
Check prices

Crew

8.2

Entertainment

6.7

Food

7.0

Overall

7.5

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
6.0
Good

Be,Oct 2023

FCO - ZRH

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

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.

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

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £73. Users have also found prices from £75 and £84 on Icelandair and Scandinavian Airlines, respectively.

  • 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 Qatar Airways (98%), American Airlines (93%) and Qantas Airways (93%).

  • 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 £1,129, our data indicates the cheapest price to be £138. The most popular route (London Heathrow - Reykjavik Keflavik Intl), is priced around £118.

  • 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

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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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£87Average£116FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
British AirwaysCheapest£105Average£196FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£140Average£297FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£158Average£305FlexibilityNo 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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