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Cheap flights from London Heathrow Airport to Reykjavik from £67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Reykjavik departing on 26/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Reykjavik

Cheap return flights

Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£113Icelandair
Find Deal
sam., 29 nov. - dim., 7 déc.
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£114Icelandair
Find Deal
jeu., 6 nov. - lun., 10 nov.
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
16:20 - 19:30KEF-LHR
3h 10mdirect
£114Icelandair
Find Deal
sam., 8 nov. - sam., 15 nov.
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£115Icelandair
Find Deal
jeu., 6 nov. - lun., 10 nov.
British Airways Logo
07:35 - 10:55LHR-KEF
3h 20mdirect
British Airways Logo
11:45 - 14:55KEF-LHR
3h 10mdirect
£120British Airways
Find Deal
mar., 25 nov. - jeu., 27 nov.
Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Logo
13:00 - 09:35KEF-LHR
20h 35m1 stop
£129
Find Deal
jeu., 6 nov. - lun., 10 nov.
British Airways Logo
07:30 - 10:50LHR-KEF
3h 20mdirect
British Airways Logo
11:55 - 15:05KEF-LHR
3h 10mdirect
£130British Airways
Find Deal
mer., 14 janv. - sam., 24 janv.
Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Logo
13:00 - 09:35KEF-LHR
20h 35m1 stop
£131
Find Deal
jeu., 6 nov. - lun., 10 nov.
Scandinavian Airlines Logo
17:00 - 10:45LHR-KEF
17h 45m1 stop
Scandinavian Airlines Logo
13:00 - 18:50KEF-LHR
5h 50m1 stop
£135Scandinavian Airlines
Find Deal
lun., 27 oct. - lun., 3 nov.
Scandinavian Airlines Logo
15:35 - 10:30LHR-KEF
18h 55m1 stop
Scandinavian Airlines Logo
11:30 - 18:50KEF-LHR
7h 20m1 stop
£138Scandinavian Airlines
Find Deal
sam., 15 nov. - jeu., 20 nov.

Icelandair flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on London Heathrow Airport to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
29 Nov
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
7 Dec
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
£113
Find similar
Icelandair
6 Nov
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
10 Nov
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
£114
Find similar
Icelandair
8 Nov
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
15 Nov
KEF16:20Reykjavik Keflavik Intl
3h 10m
LHR19:30London Heathrow
£114
Find similar

Scandinavian Airlines flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Our best Scandinavian Airlines deals on London Heathrow Airport to Reykjavik Keflavik Intl Airport flight tickets
Scandinavian Airlines
27 Oct
LHR17:00London Heathrow
17h 45m
1 stop
KEF10:45Reykjavik Keflavik Intl
3 Nov
KEF13:00Reykjavik Keflavik Intl
5h 50m
1 stop
LHR18:50London Heathrow
£135
Find similar
Scandinavian Airlines
15 Nov
LHR15:35London Heathrow
18h 55m
1 stop
KEF10:30Reykjavik Keflavik Intl
20 Nov
KEF11:30Reykjavik Keflavik Intl
7h 20m
1 stop
LHR18:50London Heathrow
£138
Find similar
Scandinavian Airlines
1 Nov
LHR15:35London Heathrow
18h 55m
1 stop
KEF10:30Reykjavik Keflavik Intl
3 Nov
KEF13:00Reykjavik Keflavik Intl
8h 35m
1 stop
LHR21:35London Heathrow
£140
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport 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, momondo users made 279,928 searches. Data last updated 12 septembre 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

sam. 29/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

dim. 7/12

07:35-10:50

Nonstop3h 15m

£113

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

jeu. 6/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

lun. 10/11

07:35-10:50

Nonstop3h 15m

£114

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

sam. 8/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

sam. 15/11

16:20-19:30

Nonstop3h 10m

£114

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

jeu. 6/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

lun. 10/11

07:35-10:50

Nonstop3h 15m

£115

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

mar. 25/11

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

jeu. 27/11

11:45-14:55

Nonstop3h 10m

£120

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

jeu. 6/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

lun. 10/11

13:00-09:35

1 stop20h 35m

£129

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

mer. 14/1

07:30-10:50

Nonstop3h 20m

Reykjavik Keflavik Intl

sam. 24/1

11:55-15:05

Nonstop3h 10m

£130

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

jeu. 6/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

lun. 10/11

13:00-09:35

1 stop20h 35m

£131

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

lun. 27/10

17:00-10:45

1 stop17h 45m

Reykjavik Keflavik Intl

lun. 3/11

13:00-18:50

1 stop5h 50m

£135

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

sam. 15/11

15:35-10:30

1 stop18h 55m

Reykjavik Keflavik Intl

jeu. 20/11

11:30-18:50

1 stop7h 20m

£138

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Reykjavik Keflavik Intl Airport?

What is the cheapest month to fly to Reykjavik Keflavik Intl Airport?

The month of January is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from London Heathrow Airport, with most prices found around £148. If you don’t want to visit Reykjavik Keflavik Intl Airport in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £171.

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

On average, the least expensive day to fly to Reykjavik Keflavik Intl Airport from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £333. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport on a Saturday will generally be more expensive and average around £384. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

Our data shows that the cheapest London Heathrow Airport to Reykjavik Keflavik Intl Airport flights are usually those with departure times in the morning. Our users have found flights to Reykjavik Keflavik Intl Airport in the morning for as low as £320. Try not to purchase tickets at midday because they tend to be around £501. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London Heathrow to Reykjavik Keflavik Intl flight route?

Fly from London Heathrow to Reykjavik Keflavik Intl for the best London Heathrow - Reykjavik Keflavik Intl flight prices

How far in advance should I book a flight to Reykjavik Keflavik Intl Airport?

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around £207 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from London Heathrow Airport for as low as £166 on momondo.

What cabin class options are available on London Heathrow to Reykjavik Keflavik Intl flights?

There are 3 cabin classes available to choose from on London Heathrow to Reykjavik Keflavik Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Reykjavik Keflavik Intl Airport flight prices changed over time?

As of September 2025, prices for London Heathrow Airport to Reykjavik Keflavik Intl Airport flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Reykjavik Keflavik Intl Airport (LHR to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Best price found

£452

Fastest flight time

3h 05m

Direct flights

Every day
The best one-way flight to Reykjavik Keflavik Intl Airport from London Heathrow Airport in the past 72 hours is £452. The best return flight deal from London Heathrow Airport to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is £270.
The fastest flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport takes 3h 05m
Direct flights go from London Heathrow Airport to Reykjavik Keflavik Intl Airport every day.
Search flight deals

  • How far is London Heathrow to Reykjavik Keflavik Intl by plane?

    Reykjavik Keflavik Intl is 1176.8 mi away from London Heathrow. 3h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The required travel and health documents for your Reykjavik Keflavik Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Reykjavik Keflavik Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

  • What is the most popular airline from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

Best airlines flying from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £83Free CancellationRating
7.0
103 reviews
Search PLAY flights
British AirwaysPriceFrom £115Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
IcelandairPriceFrom £133Free CancellationRating
7.0
546 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom £134Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights

  • Icelandair Flights From London Heathrow Airport to Reykjavik Keflavik Intl Airport

    The lowest priced Icelandair flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport from the last 72 hours was £180. Generally, Icelandair has 13 flights on this route every week with an average price of £311. Icelandair is rated 7.0/10 by our users.

  • British Airways Flights From London Heathrow Airport to Reykjavik Keflavik Intl Airport

    British Airways (6.6/10 from 7,361 reviews) operates around 3 flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport in any given week. The average British Airways airfare for this route is around £279, with deals from around £156 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Reykjavik Keflavik Intl Airport flight searches in the last 72 hours.

Travelling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hveragerdi
Kopavogur
Borgarnes
Hella
Grindavik

Why use momondo?

Why should I use momondo to find a flight deal from London to Reykjavik?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Reykjavik for you.

Can I find flights from London to Reykjavik with flexible booking policies on momondo?

All flight searches from London to Reykjavik on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Reykjavik?

Once all potential London to Reykjavik flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Reykjavik right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Reykjavik, momondo offers a useful price alert feature which will track prices for flights to Reykjavik from London and alert you when they change.

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