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Cheap flights from London Heathrow Airport to Reykjavik from $98

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 11/21. 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 round-trip flights

Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF-LHR
3h 10mnonstop
$158Icelandair
Find Deal
Sat, Nov 8 - Tue, Nov 11
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$159Icelandair
Find Deal
Sat, Nov 8 - Mon, Nov 10
British Airways Logo
7:35 am - 10:55 amLHR-KEF
3h 20mnonstop
British Airways Logo
11:45 am - 2:55 pmKEF-LHR
3h 10mnonstop
$160British Airways
Find Deal
Sat, Nov 22 - Thu, Nov 27
Icelandair Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF-LHR
3h 15mnonstop
$161Icelandair
Find Deal
Thu, Nov 20 - Sun, Nov 23
British Airways Logo
7:25 am - 10:45 amLHR-KEF
3h 20mnonstop
British Airways Logo
11:50 am - 3:00 pmKEF-LHR
3h 10mnonstop
$162British Airways
Find Deal
Thu, Nov 6 - Mon, Nov 10
British Airways Logo
7:30 am - 10:50 amLHR-KEF
3h 20mnonstop
British Airways Logo
5:55 pm - 8:55 pmKEF-LHR
3h 00mnonstop
$163British Airways
Find Deal
Wed, Nov 5 - Sun, Nov 9
Scandinavian Airlines Logo
3:35 pm - 10:30 amLHR-KEF
18h 55m1 stop
Scandinavian Airlines Logo
1:00 pm - 6:50 pmKEF-LHR
5h 50m1 stop
$188Scandinavian Airlines
Find Deal
Sat, Nov 8 - Mon, Nov 10
Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Logo
1:00 pm - 9:35 amKEF-LHR
20h 35m1 stop
$191
Find Deal
Fri, Nov 7 - Mon, Nov 10
Scandinavian Airlines Logo
3:35 pm - 10:30 amLHR-KEF
18h 55m1 stop
Scandinavian Airlines Logo
11:30 am - 9:35 pmKEF-LHR
10h 05m1 stop
$197Scandinavian Airlines
Find Deal
Sat, Nov 22 - Thu, Nov 27
Logo
8:35 pm - 11:55 pmLHR-KEF
3h 20mnonstop
Logo
1:00 pm - 9:35 pmKEF-LHR
8h 35m1 stop
$198
Find Deal
Sat, Nov 8 - Mon, Nov 10

British Airways flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport

Our best British Airways deals on London Heathrow Airport to Reykjavik Keflavik Intl Airport flight tickets
British Airways
Nov 22
LHR7:35 amLondon Heathrow
3h 20m
KEF10:55 amReykjavik Keflavik Intl
Nov 27
KEF11:45 amReykjavik Keflavik Intl
3h 10m
LHR2:55 pmLondon Heathrow
$160
Find similar
British Airways
Nov 6
LHR7:25 amLondon Heathrow
3h 20m
KEF10:45 amReykjavik Keflavik Intl
Nov 10
KEF11:50 amReykjavik Keflavik Intl
3h 10m
LHR3:00 pmLondon Heathrow
$162
Find similar
British Airways
Nov 5
LHR7:30 amLondon Heathrow
3h 20m
KEF10:50 amReykjavik Keflavik Intl
Nov 9
KEF5:55 pmReykjavik Keflavik Intl
3h 00m
LHR8:55 pmLondon Heathrow
$163
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
Nov 8
LHR3:35 pmLondon Heathrow
18h 55m
1 stop
KEF10:30 amReykjavik Keflavik Intl
Nov 10
KEF1:00 pmReykjavik Keflavik Intl
5h 50m
1 stop
LHR6:50 pmLondon Heathrow
$188
Find similar
Scandinavian Airlines
Nov 22
LHR3:35 pmLondon Heathrow
18h 55m
1 stop
KEF10:30 amReykjavik Keflavik Intl
Nov 27
KEF11:30 amReykjavik Keflavik Intl
10h 05m
1 stop
LHR9:35 pmLondon Heathrow
$197
Find similar
Scandinavian Airlines
Nov 22
LHR3:35 pmLondon Heathrow
18h 55m
1 stop
KEF10:30 amReykjavik Keflavik Intl
Nov 26
KEF11:30 amReykjavik Keflavik Intl
10h 10m
1 stop
LHR9:40 pmLondon Heathrow
$199
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated September 14, 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

Sat 11/8

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Tue 11/11

4:20 pm-7:30 pm

Nonstop3h 10m

$158

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 11/8

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 11/10

7:35 am-10:50 am

Nonstop3h 15m

$159

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 11/22

7:35 am-10:55 am

Nonstop3h 20m

Reykjavik Keflavik Intl

Thu 11/27

11:45 am-2:55 pm

Nonstop3h 10m

$160

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 11/20

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 11/23

7:35 am-10:50 am

Nonstop3h 15m

$161

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Thu 11/6

7:25 am-10:45 am

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 11/10

11:50 am-3:00 pm

Nonstop3h 10m

$162

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 11/5

7:30 am-10:50 am

Nonstop3h 20m

Reykjavik Keflavik Intl

Sun 11/9

5:55 pm-8:55 pm

Nonstop3h 00m

$163

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 11/8

3:35 pm-10:30 am

1 stop18h 55m

Reykjavik Keflavik Intl

Mon 11/10

1:00 pm-6:50 pm

1 stop5h 50m

$188

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 11/7

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 11/10

1:00 pm-9:35 am

1 stop20h 35m

$191

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 11/22

3:35 pm-10:30 am

1 stop18h 55m

Reykjavik Keflavik Intl

Thu 11/27

11:30 am-9:35 pm

1 stop10h 05m

$197

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 11/8

8:35 pm-11:55 pm

Nonstop3h 20m

Reykjavik Keflavik Intl

Mon 11/10

1:00 pm-9:35 pm

1 stop8h 35m

$198

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $216. If you’re not able to fly to Reykjavik Keflavik Intl Airport in January, then February is your next best option. Flight prices from London Heathrow Airport to Reykjavik Keflavik Intl Airport during February average around $233.

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

The cheapest day to depart from London Heathrow Airport to Reykjavik Keflavik Intl Airport is on a Sunday when prices can be found for as low as $421. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Saturday, with ticket prices averaging around $494.

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

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the evening when flights can be purchased for as low as $414. Flights at noon are often more expensive with an average ticket price of $633.

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 $283 when searching weeks out. 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 $230 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.

Can stopping save me money on London Heathrow Airport to Reykjavik Keflavik Intl Airport flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Reykjavik Keflavik Intl Airport.

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 round-trip 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

$268

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 $268. The best round-trip flight deal from London Heathrow Airport to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $544.
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?

    A flight from London Heathrow to Reykjavik Keflavik Intl will travel around 1176.8 mi. By plane, this route typically takes 3h 15m.

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 travel and health documents required for your trip to Reykjavik Keflavik Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Reykjavik Keflavik Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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 $153Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
IcelandairPriceFrom $156Free CancellationRating
7.0
546 reviews
Search Icelandair flights

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

    Icelandair flies from London Heathrow Airport to Reykjavik Keflavik Intl Airport around 15 times per week, with 546 momondo users rating the airline 7.0/10. The cheapest Icelandair deal from London Heathrow Airport to Reykjavik Keflavik Intl Airport in the last 72 hours was $156 (round-trip), much lower than the average airfare cost of $302 for Icelandair flights on this route.

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

    Across 7,361 British Airways reviews on momondo, the average score is 6.6/10. British Airways flies from London Heathrow Airport to Reykjavik Keflavik Intl Airport about 3 times each week, with ticket deals ranging from $153 to $225. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Reykjavik?

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

Why use momondo?

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

It is quick and easy to find London to Reykjavik flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Reykjavik that suits you.

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

Yes. All flights to Reykjavik from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Reykjavik.

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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