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Cheap flights from London Heathrow Airport to Reykjavik from £108

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — REK
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Reykjavik are usually found in January or November, booked 80 days in advance, depart on a Sunday or Thursday and return on a Friday

Cheap flight deals from Heathrow to Reykjavik

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Reykjavik
Explore the most affordable flight options available from Heathrow to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Sat 7/1117:50
LHR
-
KEF
1 stop19h 55m
KLM
Mon 16/1114:45
KEF
-
LHR
1 stop16h 55m
KLM
Deal found 28/6£197
Mon 9/1120:25
LHR
-
KEF
1 stop17h 20m
KLM
Mon 16/1114:45
KEF
-
LHR
1 stop6h 05m
KLM
Deal found 27/6£199
Thu 24/910:20
LHR
-
KEF
1 stop6h 55m
Scandinavian Airlines
Tue 29/918:55
KEF
-
LHR
1 stop13h 40m
Scandinavian Airlines
Deal found 27/6£199
Wed 12/807:05
LHR
-
KEF
1 stop11h 30m
Scandinavian Airlines
Fri 14/818:05
KEF
-
LHR
1 stop14h 30m
Scandinavian Airlines
Deal found 28/6£200
Thu 26/1120:35
LHR
-
KEF
Nonstop3h 15m
Icelandair
Thu 31/1207:35
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 27/6£202
Thu 13/810:35
LHR
-
KEF
1 stop8h 00m
Scandinavian Airlines
Fri 21/807:55
KEF
-
LHR
1 stop7h 30m
Scandinavian Airlines
Deal found 30/6£202
Tue 18/819:50
LHR
-
KEF
1 stop16h 25m
Scandinavian Airlines
Wed 26/817:35
KEF
-
LHR
1 stop27h 05m
Scandinavian Airlines
Deal found 27/6£203
Thu 29/1019:30
LHR
-
KEF
1 stop21h 50m
Scandinavian Airlines
Tue 3/1118:05
KEF
-
LHR
1 stop23h 35m
Scandinavian Airlines
Deal found 30/6£204
Mon 17/819:50
LHR
-
KEF
1 stop22h 30m
Scandinavian Airlines
Mon 31/811:15
KEF
-
LHR
1 stop21h 20m
Scandinavian Airlines
Deal found 26/6£205
Thu 5/1119:50
LHR
-
KEF
1 stop15h 00m
Scandinavian Airlines
Fri 13/1111:35
KEF
-
LHR
1 stop10h 05m
Scandinavian Airlines
Deal found 28/6£205
Wed 19/815:35
LHR
-
KEF
1 stop18h 20m
Multiple Airlines
Fri 21/817:45
KEF
-
LHR
2 stops14h 50m
Multiple Airlines
Deal found 26/6£206

Find flight deals from Heathrow to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Reykjavik (REK). 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 1 July 2026.

Round-trip from

£197

One-way from

£108

Popular in

August

Cheapest in

January

Average price

£345

Good round-trip deal

£375 or less

Good one-way deal

£272 or less
KLM
  • KLM
  • 7/11-16/11
  • 2 total stops
  • 36h 50m total
  • London to Reykjavik
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 17/8
  • 1 total stop
  • 22h 30m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Reykjavik (REK).
Search Deals
Price to beat on a one-way flight from London Heathrow to Reykjavik (REK).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Reykjavik 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 1 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Reykjavik that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 9/11

20:25-13:45

1 stop17h 20m

Reykjavik Keflavik Intl

Sun 15/11

14:45-07:40

1 stop16h 55m

£241
Fastest return journey

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 8/10

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Tue 20/10

16:10-20:20

Nonstop3h 10m

£246

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 14/8

10:35-17:15

1 stop7h 40m

Reykjavik Keflavik Intl

Fri 21/8

17:50-09:20

1 stop14h 30m

£255

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 5/11

19:30-17:20

1 stop21h 50m

Reykjavik Keflavik Intl

Sun 15/11

18:05-17:40

1 stop23h 35m

£263

LondonReykjavik

LHR - KEF

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

£273

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 9/8

10:35-15:20

1 stop5h 45m

Reykjavik Keflavik Intl

Tue 18/8

18:10-09:35

1 stop14h 25m

£297

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 15/8

10:35-17:45

1 stop8h 10m

Reykjavik Keflavik Intl

Mon 17/8

09:10-21:40

1 stop11h 30m

£298

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 3/12

17:00-10:50

1 stop17h 50m

Reykjavik Keflavik Intl

Sun 6/12

18:05-18:30

1 stop24h 25m

£319

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 29/7

18:40-09:40

1 stop16h 00m

Reykjavik Keflavik Intl

Wed 5/8

17:35-09:20

1 stop14h 45m

£322

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 14/8

08:40-17:15

2 stops9h 35m

Reykjavik Keflavik Intl

Tue 18/8

11:15-20:55

2 stops8h 40m

£337

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik 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 Reykjavik

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

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Reykjavik (average of £49). Flying from London Heathrow Airport to Reykjavik in August is currently the most expensive (average of £149). 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 REK?

Find hourly flight availability from Heathrow to Reykjavik. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2026.

When flying from London Heathrow Airport to Reykjavik, 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 Reykjavik

Explore weekly flight availability from Heathrow to Reykjavik. 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 1 July 2026.

The most flights from LHR to REK are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight from London Heathrow Airport to Reykjavik?

How often are flights from London to Reykjavik delayed?

About 9% of weekly flights between London and Reykjavik have experienced delays in the past year, with the average delay time being 110 minutes.

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 8% of flights being delayed.

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

The best time to book flights from London Heathrow Airport to Reykjavik is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Reykjavik

Get insights into the airlines that provide service to Reykjavik. 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 Reykjavik. Reviews last updated 1 July 2026.
Read reviews from past customers who have flown with Scandinavian Airlines,Icelandair, andeasyJet from London Heathrow Airport to Reykjavik. 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.
Scandinavian Airlines
7.4
Good
1,859 reviews
Check prices

Overall

7.4

Crew

8.0

Boarding

7.7

Food

6.7

Entertainment

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CPH - ORD

The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
Scandinavian Airlines
7.4
Good
1,859 reviews
Scandinavian Airlines
7.4
Good
1,859 reviews
Check prices

Overall

7.4

Crew

8.0

Boarding

7.7

Food

6.7

Entertainment

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CPH - ORD

The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
Icelandair
7.0
Good
694 reviews
Scandinavian Airlines
7.4
Good
1,859 reviews
Check prices

Overall

7.4

Crew

8.0

Boarding

7.7

Food

6.7

Entertainment

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CPH - ORD

The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
easyJet
6.9
Okay
1,914 reviews
Scandinavian Airlines
7.4
Good
1,859 reviews
Check prices

Overall

7.4

Crew

8.0

Boarding

7.7

Food

6.7

Entertainment

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CPH - ORD

The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
British Airways
6.7
Okay
8,087 reviews
Scandinavian Airlines
7.4
Good
1,859 reviews
Check prices

Overall

7.4

Crew

8.0

Boarding

7.7

Food

6.7

Entertainment

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CPH - ORD

The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Reykjavik. 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 Reykjavik?

    Departing from London Heathrow Airport to Reykjavik will take you 3h 10m. There are 1177 mi between London Heathrow Airport and Reykjavik. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Reykjavik round-trip?

    Icelandair, at £121, was found to be the cheapest airline from London Heathrow Airport to Reykjavik.Alternate airlines flying return to your destination include British Airways and Scandinavian Airlines. Icelandair is priced at 52% lower than the current average price of a flight leaving 3 months from now.

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

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Reykjavik consider choosing Turkish Airlines (93%), Icelandair (93%) or Emirates (93%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for £115. While the most popular route (London Heathrow - Reykjavik Keflavik Intl) can be booked for £111 on average, our data indicates £815 when flying from London Heathrow Airport to Reykjavik.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Reykjavik 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 Reykjavik?

    Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Reykjavik (average of £49). Flying from London Heathrow Airport to Reykjavik in August is currently the most expensive (average of £149). 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 Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Hveragerdi
Kopavogur

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Top 3 airlines flying from Heathrow to Reykjavik

Discover the top 3 airlines that operate flights from Heathrow to Reykjavik. 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 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£121Average£277FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£132Average£245FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£170Average£358FlexibilityNo 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 Reykjavik?

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 Reykjavik from Heathrow today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Reykjavik.

Can Cheapflights find flights from Heathrow to Reykjavik with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Reykjavik with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Reykjavik from Heathrow today and book when prices fit your budget.

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