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Cheap flights from London to Reykjavik from $125

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 to Reykjavik departing on 16/11. 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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Cheap return flights

Enter your travel dates to find the best prices.
easyJet Logo
15:30 - 18:45LTN-KEF
3h 15mdirect
easyJet Logo
19:35 - 22:30KEF-LTN
2h 55mdirect
$174easyJet
Find Deal
Mon, 5 Jan - Mon, 12 Jan
easyJet Logo
07:00 - 10:30LGW-KEF
3h 30mdirect
easyJet Logo
12:20 - 15:30KEF-LGW
3h 10mdirect
$174easyJet
Find Deal
Sun, 22 Feb - Tue, 24 Feb
Icelandair Logo
21:25 - 23:35LHR-KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55KEF-LHR
3h 15mdirect
$226Icelandair
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Wed, 22 Apr - Wed, 29 Apr
Icelandair Logo
21:25 - 23:35LHR-KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55KEF-LHR
3h 15mdirect
$234Icelandair
Find Deal
Sat, 18 Apr - Sun, 26 Apr
Multiple Airlines Logo
07:00 - 10:15LTN-KEF
3h 15mdirect
Multiple Airlines Logo
00:55 - 18:15KEF-LTN
17h 20m1 stop
$279Multiple Airlines
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Tue, 9 Dec - Wed, 10 Dec
British Airways Logo
13:40 - 17:05LHR-KEF
3h 25mdirect
British Airways Logo
11:55 - 15:05KEF-LHR
3h 10mdirect
$282British Airways
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Sun, 22 Feb - Sat, 28 Feb
Jet2 Logo
07:15 - 10:15STN-KEF
3h 00mdirect
Jet2 Logo
11:15 - 14:10KEF-STN
2h 55mdirect
$282Jet2
Find Deal
Sun, 22 Mar - Wed, 25 Mar
British Airways Logo
13:50 - 17:15LHR-KEF
3h 25mdirect
British Airways Logo
11:55 - 15:05KEF-LHR
3h 10mdirect
$283British Airways
Find Deal
Fri, 6 Feb - Sat, 7 Feb
Multiple Airlines Logo
20:35 - 23:55LHR-KEF
3h 20mdirect
Multiple Airlines Logo
11:30 - 21:35KEF-LHR
10h 05m1 stop
$333Multiple Airlines
Find Deal
Tue, 9 Dec - Thu, 11 Dec
Jet2 Logo
07:15 - 09:15STN-KEF
3h 00mdirect
Jet2 Logo
10:15 - 14:10KEF-STN
2h 55mdirect
$690Jet2
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Sun, 29 Mar - Sun, 5 Apr

Icelandair flights from London to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on London to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
22 Apr
LHR21:25London Heathrow
3h 10m
KEF23:35Reykjavik Keflavik Intl
29 Apr
KEF07:40Reykjavik Keflavik Intl
3h 15m
LHR11:55London Heathrow
$226
Find similar
Icelandair
18 Apr
LHR21:25London Heathrow
3h 10m
KEF23:35Reykjavik Keflavik Intl
26 Apr
KEF07:40Reykjavik Keflavik Intl
3h 15m
LHR11:55London Heathrow
$234
Find similar
Icelandair
13 Jan
LHR20:35London Heathrow
3h 20m
KEF23:55Reykjavik Keflavik Intl
20 Jan
KEF07:35Reykjavik Keflavik Intl
3h 15m
LHR10:50London Heathrow
$240
Find similar

British Airways flights from London to Reykjavik Keflavik Intl Airport

Our best British Airways deals on London to Reykjavik Keflavik Intl Airport flight tickets
British Airways
22 Feb
LHR13:40London Heathrow
3h 25m
KEF17:05Reykjavik Keflavik Intl
28 Feb
KEF11:55Reykjavik Keflavik Intl
3h 10m
LHR15:05London Heathrow
$282
Find similar
British Airways
6 Feb
LHR13:50London Heathrow
3h 25m
KEF17:15Reykjavik Keflavik Intl
7 Feb
KEF11:55Reykjavik Keflavik Intl
3h 10m
LHR15:05London Heathrow
$283
Find similar
British Airways
18 Nov
LHR07:35London Heathrow
3h 20m
KEF10:55Reykjavik Keflavik Intl
28 Nov
KEF18:10Reykjavik Keflavik Intl
3h 00m
LHR21:10London Heathrow
$285
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 78,305 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from London to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Mon 5/1

15:30-18:45

Nonstop3h 15m

Reykjavik Keflavik Intl

Mon 12/1

19:35-22:30

Nonstop2h 55m

$174

LondonReykjavik

LGW - KEF

LGWKEF

London Gatwick

Sun 22/2

07:00-10:30

Nonstop3h 30m

Reykjavik Keflavik Intl

Tue 24/2

12:20-15:30

Nonstop3h 10m

$174

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Wed 22/4

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Wed 29/4

07:40-11:55

Nonstop3h 15m

$226

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sat 18/4

21:25-23:35

Nonstop3h 10m

Reykjavik Keflavik Intl

Sun 26/4

07:40-11:55

Nonstop3h 15m

$234

LondonReykjavik

LTN - KEF

LTNKEF

London Luton

Tue 9/12

07:00-10:15

Nonstop3h 15m

Reykjavik Keflavik Intl

Wed 10/12

00:55-18:15

1 stop17h 20m

$279

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Sun 22/2

13:40-17:05

Nonstop3h 25m

Reykjavik Keflavik Intl

Sat 28/2

11:55-15:05

Nonstop3h 10m

$282

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Sun 22/3

07:15-10:15

Nonstop3h 00m

Reykjavik Keflavik Intl

Wed 25/3

11:15-14:10

Nonstop2h 55m

$282

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Fri 6/2

13:50-17:15

Nonstop3h 25m

Reykjavik Keflavik Intl

Sat 7/2

11:55-15:05

Nonstop3h 10m

$283

LondonReykjavik

LHR - KEF

LHRKEF

London Heathrow

Tue 9/12

20:35-23:55

Nonstop3h 20m

Reykjavik Keflavik Intl

Thu 11/12

11:30-21:35

1 stop10h 05m

$333

LondonReykjavik

STN - KEF

STNKEF

London Stansted

Sun 29/3

07:15-09:15

Nonstop3h 00m

Reykjavik Keflavik Intl

Sun 5/4

10:15-14:10

Nonstop2h 55m

$690

Flights are sorted by cheapest return 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 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?

If you don’t want to visit Reykjavik Keflavik Intl Airport in January, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of $193.

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

Our data shows that Sunday is the least expensive day to fly to Reykjavik Keflavik Intl Airport. Tickets to fly out on this day can be as low as $268. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $466. These prices are subject to change though, so be sure to set up a Price Alert for flights to Reykjavik Keflavik Intl Airport.

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

According to our data, the cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the morning. momondo users have found flights departing from London to Reykjavik Keflavik Intl Airport in the morning for as low as $306. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Reykjavik Keflavik Intl Airport is in the afternoon when prices are around $424.

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

Fly from London Luton to Reykjavik Keflavik Intl for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $438 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 for as low as $382 on momondo.

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

There are 3 cabin classes available to choose from on London 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 to Reykjavik Keflavik Intl Airport flights?

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

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

As of November 2025, prices for London to Reykjavik Keflavik Intl Airport flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from London to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London 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 to Reykjavik Keflavik Intl Airport (LON to KEF) flight deals and tips

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

Best price found

$2,823

Fastest flight time

3h 00m

Direct flights

Every day
The best one-way flight to Reykjavik Keflavik Intl Airport from London in the past 72 hours is $2,823. The best return flight deal from London to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $400.
The fastest flight from London to Reykjavik Keflavik Intl Airport takes 3h 00m
Direct flights go from London to Reykjavik Keflavik Intl Airport every day.
Search flight deals

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

    A flight from London to Reykjavik Keflavik Intl will travel around 1904.3 km. 3h 00m is a normal flight duration for this route.

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

    Prices for flights from London to Reykjavik Keflavik Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London 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 licence, 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 to Reykjavik Keflavik Intl Airport?

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

Best airlines flying from London to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from London to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free cancellation
Price
IcelandairPriceFrom $295Free cancellationRating
7.1
571 reviews
Search Icelandair flights

  • Icelandair Flights From London to Reykjavik Keflavik Intl Airport

    Icelandair operates around 20 flights from London to Reykjavik Keflavik Intl Airport every week. The average price of these flights found in the last 72 hours has been $386, but momondo users have found Icelandair deals from London to Reykjavik Keflavik Intl Airport from as low as $295 round-trip. Icelandair has been scored 7.1/10 in 571 reviews.

Travelling to a place near Reykjavik?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Reykjavik . Millions of users trust and use momondo every year so you are in good hands.

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?

momondo provides multiple filters to help you find the best flight to Reykjavik from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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