LON - KEF

$98 Find Cheap Flights from London to Reykjavik

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Keflavik Intl departing on 26/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik Keflavik Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Reykjavik, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$180
Typical prices: $225-$401
easyJet
Tue 24/2Thu 5/3
LTN - KEF • Direct
Cheapest one-way flight
$98
easyJet
Thu 26/3
LTN - KEF • Direct
Our travellers' advice
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
Pack snacks as Icelandair has no free in-flight food.
Avoid costly cabs; use London's transit system instead.
User tips
User tips
User tips
User tips
Top airlines
easyJet
Cheapest • from $180 (return)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR
-
KEF
Cheapest • 45% average savings
LTN
-
KEF
Most popular
Insights
Insights
Insights
Insights
When to book
6 weeks
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 53% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Keflavik Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Keflavik Intl (LON-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Keflavik Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Keflavik Intl

Tue, 24 Feb - Thu, 5 Mar
easyJet Logo
07:00 - 10:15
LTN
-
KEF
3h 15mdirect
easyJet Logo
10:00 - 12:55
KEF
-
LTN
2h 55mdirect
$180easyJet
Mon, 9 Mar - Thu, 12 Mar
easyJet Logo
15:30 - 18:45
LTN
-
KEF
3h 15mdirect
easyJet Logo
17:55 - 20:50
KEF
-
LTN
2h 55mdirect
$193easyJet
Tue, 24 Feb - Wed, 4 Mar
easyJet Logo
07:00 - 10:15
LTN
-
KEF
3h 15mdirect
easyJet Logo
11:55 - 14:50
KEF
-
LTN
2h 55mdirect
$194easyJet
Tue, 3 Mar - Fri, 13 Mar
easyJet Logo
07:00 - 10:15
LTN
-
KEF
3h 15mdirect
easyJet Logo
19:40 - 22:40
KEF
-
LTN
3h 00mdirect
$200easyJet
Fri, 17 Apr - Tue, 28 Apr
Icelandair Logo
21:25 - 23:35
LHR
-
KEF
3h 10mdirect
Icelandair Logo
07:40 - 11:55
KEF
-
LHR
3h 15mdirect
$236Icelandair
Tue, 24 Feb - Tue, 3 Mar
Icelandair Logo
11:55 - 15:20
LGW
-
KEF
3h 25mdirect
Icelandair Logo
07:40 - 10:55
KEF
-
LGW
3h 15mdirect
$238Icelandair
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
07:15 - 18:35
STN
-
KEF
11h 20m
1 stop
Multiple Airlines Logo
10:20 - 17:35
KEF
-
STN
7h 15m
1 stop
$279Multiple Airlines
Thu, 12 Mar - Thu, 19 Mar
Multiple Airlines Logo
10:00 - 18:55
STN
-
KEF
8h 55m
1 stop
Multiple Airlines Logo
19:35 - 09:15
KEF
-
STN
13h 40m
1 stop
$294Multiple Airlines
Thu, 7 May - Sun, 10 May
KLM Logo
08:25 - 18:15
LCY
-
KEF
10h 50m
1 stop
KLM Logo
20:10 - 08:50
KEF
-
LCY
11h 40m
1 stop
$423KLM
Tue, 10 Mar - Mon, 16 Mar
KLM Logo
09:20 - 18:00
LCY
-
KEF
8h 40m
1 stop
KLM Logo
20:05 - 07:15
KEF
-
LCY
11h 10m
1 stop
$425KLM
Booking Insights

KAYAK's insights & trends for London to Keflavik Intl flights

Get data-powered insights and trends into flights from London to Keflavik Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Reykjavik Keflavik Intl Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Reykjavik Keflavik Intl Airport departing in February.

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

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Reykjavik Keflavik Intl Airport costs $105 on the route between London Heathrow Airport (LHR) and Reykjavik Keflavik Intl Airport (KEF). Over the past month, flights between London Luton Airport (LTN) and Reykjavik Keflavik Intl Airport (KEF) were, on average, 45% cheaper than other London-Reykjavik Keflavik Intl Airport routes. This is also the most popular route.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Reykjavik Keflavik Intl Airport is November, where tickets cost $148 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $505 and $475 respectively.

Can I save money by flying with a stopover from London to Reykjavik Keflavik Intl Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $327, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Reykjavik Keflavik Intl Airport, you should book around 6 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonDecember
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 39% lower on average.

When to book flights from London to Keflavik Intl

Are your dates flexible? Find out the best times to travel from London to Keflavik Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to Keflavik Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from London to Keflavik Intl 
Verified travelerFlew with Icelandair
LGW
-
KEF
Feb 2025
Pack snacks. Expensive restaurants and no in flight food unless ordered.
JonFlew with Icelandair
LGW
-
KEF
June 2024
Understanding the transit system. Something we had not done. So we took a cab that sat in a lot of traffic and cost us a lot of time and money when we could have taken the tube for very little cost and half time time

FAQs for booking London to Reykjavik flights

  • What is the cheapest flight from London to Reykjavik Keflavik Intl Airport?

    In the last 3 days, the lowest price for a flight from London to Reykjavik Keflavik Intl Airport was $98 for a one-way ticket and $180 for a return.

  • Which aircraft models fly most regularly from London to Reykjavik?

    The Boeing 777 is the aircraft model that flies most regularly on the London to Reykjavik flight route.

  • On which days can I fly direct from London to Reykjavik?

    There are direct flights from London to Reykjavik on a daily basis.

  • How does KAYAK find such low prices on flights from London to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Reykjavik with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $334 or less one-way and $226 or less round-trip.

Prefer to fly direct from London to Reykjavik Keflavik Intl?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Reykjavik Keflavik Intl.
Find which airlines fly direct from London to Reykjavik Keflavik Intl Airport, which days they fly and book direct flights.

Direct departures

London to Reykjavik Keflavik Intl

Monday

British Airways, Icelandair, Jet2, +1 more

British Airways, Icelandair, +2 more

Tuesday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Wednesday

British Airways, Icelandair, easyJet, +1 more

British Airways, Icelandair, +2 more

Thursday

British Airways, Icelandair, Jet2, +1 more

British Airways, Icelandair, +2 more

Friday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Saturday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Sunday

British Airways, Icelandair, easyJet, +1 more

British Airways, Icelandair, +2 more

See more direct flights

Direct returns

Reykjavik Keflavik Intl to London

Monday

British Airways, Icelandair, Jet2, +1 more

British Airways, Icelandair, +2 more

Tuesday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Wednesday

British Airways, Icelandair, easyJet, +1 more

British Airways, Icelandair, +2 more

Thursday

British Airways, Icelandair, Jet2, +1 more

British Airways, Icelandair, +2 more

Friday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Saturday

British Airways, Icelandair, easyJet

British Airways, Icelandair, +1 more

Sunday

British Airways, Icelandair, easyJet, +1 more

British Airways, Icelandair, +2 more

See more direct flights

Reviews of the top airline flying from London to Keflavik Intl

 
See real verified KAYAK customer reviews for airlines flying from London to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Keflavik Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
IcelandairOverall score based on 606 reviews
7.0Entertainment
6.2Food
7.2Boarding
7.0Comfort
8.1Crew
Airline reviews

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

8.0 ExcellentTina, Jan 2026
BOS - KEF
Read more Icelandair reviews

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Everything you need to know for your flight from London to Keflavik Intl

Information on your arrival and departure airports