LON - KEF

$110 Find Cheap Flights from London to Reykjavik - Compare and Save

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Everything you should know

Cheapest round-trip
$138
Typical prices: $190-$443
easyJet
Sun 12/23Fri 12/28
LGW - KEF • Non-stop
Cheapest one-way
$110
Typical prices: $118-$310
easyJet
Fri 3/23
LTN - KEF • Non-stop
Advice from real travelers
On Icelandair, bring snacks; in-flight food may require pre-ordering.
At Reykjavik Keflavik, pricey restaurants make packing food a smart choice.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Icelandair, easyJet and others. Average duration is 3h 15m.
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 35% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 51% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 40% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $197 (round-trip)
Shortest trip • 5h 39m (one-way)
Insights
Insights
Start a new search
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We hope you love your trip to Reykjavik Keflavik Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Keflavik Intl

Wed, Dec 23 - Mon, Dec 28
easyJet Logo
8:20 am - 11:50 amLGW  London Gatwick-KEF Reykjavik Keflavik Intl
3h 30mnonstop
easyJet Logo
11:55 am - 3:10 pmKEF  Reykjavik Keflavik Intl-LGW London Gatwick
3h 15mnonstop
$138easyJet
Mon, Nov 23 - Fri, Dec 4
easyJet Logo
11:20 am - 7:50 amLTN  London Luton-KEF Reykjavik Keflavik Intl
20h 30m1 stop Paris Charles de Gaulle
easyJet Logo
7:55 pm - 10:50 pmKEF  Reykjavik Keflavik Intl-LTN London Luton
2h 55mnonstop
$138easyJet
Sat, Nov 28 - Wed, Dec 2
easyJet Logo
6:50 pm - 10:15 amLTN  London Luton-KEF Reykjavik Keflavik Intl
15h 25m1 stop Edinburgh Turnhouse
easyJet Logo
12:05 pm - 3:05 pmKEF  Reykjavik Keflavik Intl-LTN London Luton
3h 00mnonstop
$138easyJet
Fri, Jan 8 - Sun, Jan 10
easyJet Logo
3:55 pm - 7:00 pmLTN  London Luton-KEF Reykjavik Keflavik Intl
3h 05mnonstop
easyJet Logo
10:05 am - 1:05 pmKEF  Reykjavik Keflavik Intl-LTN London Luton
3h 00mnonstop
$138easyJet
Fri, Nov 20 - Mon, Nov 23
Icelandair Logo
8:35 pm - 11:50 pmLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mnonstop
Icelandair Logo
7:35 am - 10:50 amKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 15mnonstop
$184Icelandair
Sat, Nov 21 - Wed, Nov 25
Icelandair Logo
8:35 pm - 11:50 pmLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 10mnonstop
$193Icelandair
Wed, Nov 18 - Sat, Nov 21
Icelandair Logo
8:35 pm - 11:50 pmLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mnonstop
Icelandair Logo
4:20 pm - 7:30 pmKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 10mnonstop
$194Icelandair
Sat, Nov 28 - Sat, Dec 5
British Airways Logo
11:45 am - 3:05 pmLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 20mnonstop
British Airways Logo
4:05 pm - 7:05 pmKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mnonstop
$201British Airways
Sat, Oct 31 - Sat, Nov 7
British Airways Logo
7:35 am - 10:50 amLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mnonstop
British Airways Logo
4:05 pm - 7:05 pmKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mnonstop
$202British Airways
Sat, Nov 28 - Sat, Dec 5
British Airways Logo
11:45 am - 3:05 pmLHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 20mnonstop
British Airways Logo
4:05 pm - 7:05 pmKEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mnonstop
$202British Airways
Booking Insights

Price, demand and travel trends for London to Reykjavik Keflavik Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from London to Reykjavik Keflavik Intl Airport?

Round-trip flights from London to Reykjavik Keflavik Intl Airport typically range from $190 to $443. The lowest price found in the past 5 days was $138, on easyJet.

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

London Luton Airport (LTN) to Reykjavik Keflavik Intl Airport (KEF) is the cheapest London to Reykjavik Keflavik Intl Airport route, averaging $172 round-trip. Other London to Reykjavik Keflavik Intl Airport routes average $286, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from London to Reykjavik Keflavik Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from London to Reykjavik Keflavik Intl Airport. It’s 0% cheaper than the average day, while Saturday is the most expensive, with prices 11% higher.

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

•January is the cheapest month to fly from London to Reykjavik Keflavik Intl Airport at $177 round-trip.
•August ($448) and July ($444) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 153% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London to Reykjavik Keflavik Intl Airport the cheapest?

Flights from London to Reykjavik Keflavik Intl Airport are cheapest 13 weeks before departure. Booking in this window typically costs about 51% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from London to Keflavik Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on PLAY and Icelandair

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for London to Reykjavik Keflavik Intl Airport flights

Low season

May

Cheapest flight

$110
Beat the crowds with an average 23% drop in travelers.
The most popular month to fly with an average 32% increase in travelers.
One-way flight from London Luton Airport to Reykjavik Keflavik Intl Airport

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 round-trip price

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

Insights shared by verified travelers who flew the route from London to Keflavik Intl 
Verified travelerFlew with Icelandair-Feb 2025
Pack snacks. Expensive restaurants and no in flight food unless ordered.
JonFlew with Icelandair-Jun 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

Your London to Reykjavik Keflavik Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from London to Reykjavik Keflavik Intl Airport?

    These are the earliest and latest flight times available from London to Reykjavik Keflavik Intl Airport:

    • Earliest: departs at 6:00 am and lands at 9:15 am
    • Latest: departs at 9:25 pm and lands at 12:40 am.

    The flight takes about 3h 15m.

  • What cabin classes can I book on flights from London to Reykjavik Keflavik Intl Airport?

    Two cabin classes are available on flights from London to Reykjavik Keflavik Intl Airport:

    • Economy Class
    • Business Class

  • How long is a flight from London to Reykjavik Keflavik Intl Airport?

    A nonstop flight from London to Reykjavik Keflavik Intl Airport takes 3h 15m, covering 1,183 miles.

  • Do I need a passport to fly from London to Reykjavik Keflavik Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London to Reykjavik Keflavik Intl Airport flight?

    Round-trip flights from London to Reykjavik Keflavik Intl Airport range from $190 to $443, with an average of $296 over the past 12 months. Anything below $190 counts as a good deal.

  • How expensive are last-minute London to Reykjavik Keflavik Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 57% above the $296 route average. Book 13 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from London to Reykjavik Keflavik Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $197 round-trip via Gdansk Rebiechowo (GDN), compared to $295 for nonstop.

  • How does on-time performance compare across airlines flying from London to Reykjavik Keflavik Intl Airport?

    British Airways is slightly above the route average for timely arrivals, while easyJet has a lower on-time arrival rate. On-time arrival rates on London to Reykjavik Keflavik Intl Airport flights are:

    • British Airways: 89% on time
    • easyJet: 89% on time
    • Jet2: 88% on time

    Overall, flights on this route are punctual 88% of the time on average.

  • What is the standard checked-bag allowance on flights from London to Reykjavik Keflavik Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $36–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • How are flight departures from London to Reykjavik Keflavik Intl Airport spread across the day?

    Morning is the busiest departure period on London to Reykjavik Keflavik Intl Airport flights, with 51% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 16%, and night flights for 0%.

  • How are flight prices from London to Reykjavik Keflavik Intl Airport looking right now?

    One-way fares from London to Reykjavik Keflavik Intl Airport are currently lower than usual. Average one-way flight prices are about $112, which is 44% below the typical average for this route.

  • What car rental options are available at Reykjavik Keflavik Intl Airport (KEF)?

    Reykjavik Keflavik Intl Airport (KEF) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:

    • Ice Rental 4x4
    • Fair Car
    • Budget
    • Europcar
    • Alamo

  • Which airports can I use when flying from London to Reykjavik Keflavik Intl Airport?

    Flights from London to Reykjavik Keflavik Intl Airport may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Reykjavik Keflavik Intl (KEF).

  • What time of day has the fewest delays on flights from London to Reykjavik Keflavik Intl Airport?

    Evening flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed from London to Reykjavik Keflavik Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Reykjavik Keflavik Intl Airport route, 12% of flights were delayed in the past 3 months, with delays averaging 1h 37m.

  • Which airports do connecting flights from London to Reykjavik Keflavik Intl Airport pass through?

    One-stop flights from London to Reykjavik Keflavik Intl Airport most commonly connect through:

    • Kastrup Copenhagen (CPH) - 29% of one-stop connections
    • Oslo Gardermoen (OSL) - 21% of one-stop connections
    • Gdansk Rebiechowo (GDN) - 10% of one-stop connections
    • Edinburgh Turnhouse (EDI) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from London to Reykjavik Keflavik Intl Airport?

    Yes. Flexible dates can save you up to 11% on flights from London to Reykjavik Keflavik Intl Airport. Thursday is the cheapest departure day at $296 round-trip on average, while Saturday is the most expensive at $330, a difference of $34.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from London to Reykjavik Keflavik Intl Airport?

    4 airlines operate flights between London and Reykjavik Keflavik Intl Airport. The airlines offering nonstop flights on this route include:

    • Icelandair
    • easyJet
    • British Airways
    • Jet2

  • How much time can I save by choosing a different layover airport from London to Reykjavik Keflavik Intl Airport?

    Flying via Dublin (DUB) gives the shortest average 1-stop total travel time at 5h 39m, compared with 6h 39m via Frankfurt am Main (FRA) and 7h 58m via Kastrup Copenhagen (CPH).

  • What is the time difference between London and Reykjavik Keflavik Intl Airport?

    Reykjavik Keflavik Intl Airport is 1 hour behind London (Greenwich Mean Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Reykjavik Keflavik Intl Airport?

    Some of the most popular sights in Reykjavik Keflavik Intl Airport are Harpa, Laugardalsholl and The Settlement Exhibition: Reykjavík 871±2. These are among the most viewed places in Reykjavik Keflavik Intl Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on London to Reykjavik Keflavik Intl Airport flights?

    Among airlines operating London to Reykjavik Keflavik Intl Airport flights:

    • Icelandair: offers extra legroom; offers free seat selection
    • easyJet: offers free seat selection
    • British Airways: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on London to Reykjavik Keflavik Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Icelandair: a cabin bag and a checked bag in Economy Class
    • easyJet: a cabin bag and a checked bag in Economy Class
    • British Airways: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Are the departure and arrival airports a hub for any airlines?

    Reykjavik Keflavik International Airport is a primary hub for Eagle Air and a domestic hub for Icelandair. It's the largest and main hub for international transportation in Iceland, whereas London Heathrow Airport is the main hub for British Airways and a center for Virgin Atlantic.

  • Does London Heathrow Airport have a play area for kids?

    Yes, this airport has several quiet spaces that are safe for kids to play in. One play area is located at Terminal 5 near Gate A7. It's ideal for kids younger than nine years and opens from 6 am to 9 pm every day. Another play area is located at Terminal 4 near Gates 1 to 6. Also, it's open from 6 am to 9 pm daily. Your kids can also sit in the kids' seating area at Terminal 2 to enjoy the spectacular view of the airport.

  • How do I get to London Heathrow Airport from downtown London?

    The fastest way to get to the airport is using a train that runs every 15min. However, if you need cheaper transport, you can use the London Underground trains that drop you off at the airport.

  • Which is the most sustainable flight from London to Reykjavik?

    American Airlines is the most sustainable airline when flying from London to Reykjavik because it practices sustainable aviation. It aims to ensure zero carbon emissions by 2050. This airline uses renewable biofuel that reduces the environmental impact on the environment.

Your guide to booking London to Reykjavik Keflavik Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $296, about $34 less than Saturday fares (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 51% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London to Reykjavik Keflavik Intl Airport trip for January. Fares historically average $177 round-trip in that month - typically $271 less than the most expensive month, which is August (based on the last 12 months).
  • For the best chance of arriving on time, fly with British Airways. Over the past three months, 89% of British Airways flights from London to Reykjavik Keflavik Intl Airport arrived on time, slightly above the route average of 88%. When flights on this route arrive late, they're delayed by an average of 1h 37m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Gdansk Rebiechowo Airport (GDN) can be cheaper than flying direct. The cheapest layover option averages $197 round-trip on this route - about $98 less than direct flights (based on the last 12 months).
  • You can access London Heathrow Airport (LHR) lounges despite the class you fly in. Airport lounges are located in all terminals, including Terminal 2, Terminal 3, Terminal 4, and Terminal 5. These lounges have family-friendly facilities and a wide selection of meals and drinks. In addition, premium lounges such as Plaza Premium Lounge offer spa services.
  • Reykjavik Keflavik International Airport (KEF) serves several nearby cities. Some of these cities include Hafnir, Vogar, Njardivik, Mosfellsbaer, Alftanes, Kopavogur, Gardabaer, Hafnarfjordur, Sardgerdi and Seltjarnes.
  • If you need easy luggage handling, cheap flights from London to Reykjavik are American Airlines or Icelandair. This is because Icelandair flies from Terminal 2 and American Airlines flies from Terminal 3. The Cargo Terminal is connected to Terminal 2 and Terminal 3 by the Heathrow cargo tunnel, making it easy to handle your luggage.
  • Though there are several airports in London, including London City Airport (LCY) and London Gatwick Airport (LGW), you should choose London Heathrow Airport. Apart from modern facilities, including the VIP Terminal, it has beautiful water fountains. All 107 water fountains are near terminal 1 to terminal 5, making it an attractive airport.
  • Reykjavik Keflavik International Airport offers facilities for specially-abled travelers. The toilets and lifts are wheelchair accessible. Also, those with hidden disabilities are given the option of wearing a sunflower lanyard at the airport. On the other hand, London Heathrow Airport has a reserved seating area with induction loops for those with disabilities. In addition, the airlines assist those with reduced mobility free of charge.

Prefer to fly direct from London to Reykjavik?

 
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

British Airways,Icelandair, +1 more

Thursday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

Friday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

Saturday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Sunday

British Airways,Icelandair,Jet2, +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

British Airways,Icelandair, +1 more

Thursday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

Friday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

Saturday

British Airways,Icelandair,easyJet

British Airways,Icelandair, +1 more

Sunday

British Airways,Icelandair,Jet2, +1 more

British Airways,Icelandair, +2 more

See more direct flights

More options for your flight from London to Keflavik Intl

Complete your trip to Reykjavik with a hotel stay or car rental