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Cheap flights from London Heathrow Airport to Reykjavik from £122

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — REK
17 Aug — 24 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 18 July 2026.

Thu 10/908:40
LHR
-
KEF
1 stop24h 10m
KLM
Sun 13/919:15
KEF
-
LHR
1 stop11h 25m
KLM
Deal found 14/7£208
Thu 20/818:05
LHR
-
KEF
1 stop14h 35m
Scandinavian Airlines
Sun 23/815:25
KEF
-
LHR
1 stop17h 10m
Scandinavian Airlines
Deal found 14/7£210
Thu 13/810:35
LHR
-
KEF
1 stop8h 00m
Scandinavian Airlines
Sun 23/815:25
KEF
-
LHR
1 stop17h 10m
Scandinavian Airlines
Deal found 16/7£210
Fri 4/1220:25
LHR
-
KEF
1 stop17h 20m
KLM
Mon 7/1214:45
KEF
-
LHR
1 stop6h 05m
KLM
Deal found 16/7£211
Mon 7/921:25
LHR
-
KEF
Nonstop3h 10m
Icelandair
Tue 15/907:40
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 15/7£212
Mon 5/1021:25
LHR
-
KEF
Nonstop3h 10m
Icelandair
Thu 8/1007:40
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 14/7£213
Thu 17/1206:30
LHR
-
KEF
1 stop7h 15m
KLM
Sat 26/1214:45
KEF
-
LHR
1 stop6h 05m
KLM
Deal found 17/7£213
Tue 25/821:25
LHR
-
KEF
Nonstop3h 10m
Icelandair
Fri 4/916:10
KEF
-
LHR
Nonstop3h 10m
Icelandair
Deal found 17/7£214
Wed 2/909:55
LHR
-
KEF
1 stop10h 05m
KLM
Thu 10/919:15
KEF
-
LHR
1 stop11h 25m
KLM
Deal found 13/7£215
Sun 1/1120:35
LHR
-
KEF
Nonstop3h 15m
Multiple Airlines
Thu 5/1118:05
KEF
-
LHR
1 stop15h 15m
Multiple Airlines
Deal found 14/7£216
Thu 3/921:25
LHR
-
KEF
Nonstop3h 10m
Icelandair
Mon 7/907:40
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 13/7£217
Wed 7/1021:25
LHR
-
KEF
Nonstop3h 10m
Icelandair
Tue 13/1007:40
KEF
-
LHR
Nonstop3h 15m
Icelandair
Deal found 16/7£218

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 18 July 2026.

Round-trip from

£208

One-way from

£122

Popular in

August

Cheapest in

January

Average price

£338

Good round-trip deal

£358 or less

Good one-way deal

£240 or less
KLM
  • KLM
  • 10/9-13/9
  • 2 total stops
  • 35h 35m total
  • London to Reykjavik
Search Deals
British Airways
  • British Airways
  • 31/10
  • Nonstop
  • 3h 20m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% 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 18 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

Thu 17/12

06:30-13:45

1 stop7h 15m

Reykjavik Keflavik Intl

Sat 26/12

14:45-20:50

1 stop6h 05m

£213

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 27/8

11:45-18:15

1 stop7h 30m

Reykjavik Keflavik Intl

Thu 3/9

19:15-07:40

1 stop11h 25m

£225

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 27/11

13:50-17:15

Nonstop3h 25m

Reykjavik Keflavik Intl

Mon 30/11

11:50-15:00

Nonstop3h 10m

£227

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 13/8

10:35-17:35

1 stop8h 00m

Reykjavik Keflavik Intl

Thu 20/8

08:50-21:40

1 stop11h 50m

£251

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 1/10

11:45-18:15

1 stop7h 30m

Reykjavik Keflavik Intl

Sat 10/10

20:05-07:40

1 stop10h 35m

£268

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 27/11

10:20-17:20

1 stop7h 00m

Reykjavik Keflavik Intl

Mon 30/11

18:05-09:20

1 stop15h 15m

£274

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 2/11

19:50-11:25

1 stop15h 35m

Reykjavik Keflavik Intl

Sun 8/11

18:05-09:20

1 stop15h 15m

£287

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 7/11

17:50-13:45

1 stop19h 55m

Reykjavik Keflavik Intl

Tue 10/11

11:35-20:50

2 stops9h 15m

£288

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 3/9

06:40-09:40

1 stop28h 00m

Reykjavik Keflavik Intl

Fri 4/9

17:50-13:35

1 stop18h 45m

£309
Fastest return journey

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 10/9

07:35-09:40

Nonstop3h 05m

Reykjavik Keflavik Intl

Sun 13/9

10:20-14:30

Nonstop3h 10m

£313

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Reykjavik (average of £175). Flying from London Heathrow Airport to Reykjavik in August is currently the most expensive (average of £358). 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 18 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 18 July 2026.

The most flights from LHR to REK are scheduled on a Saturday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 114 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 9% 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 18 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
1,885 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.0

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
1,885 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.0

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
710 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.0

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
1,916 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.0

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
8,124 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.0

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 25m. 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 £119, 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 Icelandair (86%), Emirates (86%) or Air India (86%) 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 £146. While the most popular route (London Heathrow - Reykjavik Keflavik Intl) can be booked for £144 on average, our data indicates £780 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Reykjavik (average of £175). Flying from London Heathrow Airport to Reykjavik in August is currently the most expensive (average of £358). 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 18 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£119Average£271FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£132Average£239FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£167Average£352FlexibilityNo 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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