Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Reykjavik from £80

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 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
£140Icelandair
Find Deal
Tue, 2 Dec - Mon, 8 Dec
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£142Icelandair
Find Deal
Fri, 14 Nov - Sun, 16 Nov
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£143Icelandair
Find Deal
Tue, 4 Nov - Sun, 9 Nov
Icelandair Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Icelandair Logo
07:35 - 10:50KEF-LHR
3h 15mdirect
£143Icelandair
Find Deal
Mon, 24 Nov - Sat, 29 Nov
British Airways Logo
07:35 - 10:55LHR-KEF
3h 20mdirect
British Airways Logo
18:10 - 21:10KEF-LHR
3h 00mdirect
£144British Airways
Find Deal
Mon, 12 Jan - Fri, 16 Jan
British Airways Logo
07:35 - 10:55LHR-KEF
3h 20mdirect
British Airways Logo
18:10 - 21:10KEF-LHR
3h 00mdirect
£145British Airways
Find Deal
Tue, 20 Jan - Fri, 23 Jan
Scandinavian Airlines Logo
17:30 - 10:45LHR-KEF
17h 15m1 stop
Scandinavian Airlines Logo
13:00 - 21:35KEF-LHR
8h 35m1 stop
£161Scandinavian Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Scandinavian Airlines Logo
17:30 - 10:45LHR-KEF
17h 15m1 stop
Scandinavian Airlines Logo
13:00 - 18:50KEF-LHR
5h 50m1 stop
£162Scandinavian Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Logo
07:35 - 10:55LHR-KEF
3h 20mdirect
Logo
11:30 - 21:35KEF-LHR
10h 05m1 stop
£167
Find Deal
Mon, 3 Nov - Thu, 6 Nov
Logo
07:35 - 10:55LHR-KEF
3h 20mdirect
Logo
11:15 - 18:50KEF-LHR
7h 35m1 stop
£167
Find Deal
Sat, 1 Nov - Sun, 9 Nov

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
5 Nov
LHR17:30London Heathrow
17h 15m
1 stop
KEF10:45Reykjavik Keflavik Intl
10 Nov
KEF13:00Reykjavik Keflavik Intl
8h 35m
1 stop
LHR21:35London Heathrow
£161
Find similar
Scandinavian Airlines
5 Nov
LHR17:30London Heathrow
17h 15m
1 stop
KEF10:45Reykjavik Keflavik Intl
10 Nov
KEF13:00Reykjavik Keflavik Intl
5h 50m
1 stop
LHR18:50London Heathrow
£162
Find similar
Scandinavian Airlines
10 Nov
LHR18:40London Heathrow
16h 05m
1 stop
KEF10:45Reykjavik Keflavik Intl
17 Nov
KEF13:00Reykjavik Keflavik Intl
5h 50m
1 stop
LHR18:50London Heathrow
£174
Find similar

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
2 Dec
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
8 Dec
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
£140
Find similar
Icelandair
14 Nov
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
16 Nov
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
£142
Find similar
Icelandair
4 Nov
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
9 Nov
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
£143
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 31 July 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

Tue 2/12

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 8/12

07:35-10:50

Nonstop3h 15m

£140

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 14/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 16/11

07:35-10:50

Nonstop3h 15m

£142

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 4/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 9/11

07:35-10:50

Nonstop3h 15m

£143

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 24/11

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sat 29/11

07:35-10:50

Nonstop3h 15m

£143

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 12/1

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Fri 16/1

18:10-21:10

Nonstop3h 00m

£144

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 20/1

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Fri 23/1

18:10-21:10

Nonstop3h 00m

£145

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 5/11

17:30-10:45

1 stop17h 15m

Reykjavik Keflavik Intl

Mon 10/11

13:00-21:35

1 stop8h 35m

£161

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 5/11

17:30-10:45

1 stop17h 15m

Reykjavik Keflavik Intl

Mon 10/11

13:00-18:50

1 stop5h 50m

£162

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Mon 3/11

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Thu 6/11

11:30-21:35

1 stop10h 05m

£167

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 1/11

07:35-10:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 9/11

11:15-18:50

1 stop7h 35m

£167

Flights are sorted by cheapest return flights first.

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

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 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 £149. 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 £175.

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 £337. 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 £387. 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 £325. Try not to purchase tickets at midday because they tend to be around £517. 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 £212 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 £178 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 July 2025, prices for London Heathrow Airport to Reykjavik Keflavik Intl Airport flights are approximately 6% cheaper 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

£80

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 £80. The best return flight deal from London Heathrow Airport to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is £140.
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 10m 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
British AirwaysPriceFrom £117Free CancellationRating
6.6
7,217 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom £136Free CancellationRating
7.3
1,453 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom £137Free CancellationRating
7.0
519 reviews
Search Icelandair 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 £182. Generally, Icelandair has 11 flights on this route every week with an average price of £308. 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 7,217 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 £265, 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
Grindavik
Kopavogur
Borgarnes
Hella

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.

An easier way to manage your Reykjavik Keflavik Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 5/8
Tue 12/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Reykjavik

Popular Cities in Iceland

Popular flights according to clicks in the last 7 days on momondo
Flights to Reykjavik Domestic Airport