LHR - KEF

£63 Find Cheap Flights from London Heathrow Airport to Reykjavik-Keflavik Airport – Compare and Save

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Everything you should know

Cheapest return flight
£135
Typical prices: £200-£364
Icelandair
Fri 7/12Sun 16/12
LHR - KEF • Direct
Cheapest one-way flight
£63
Typical prices: £122-£241
Icelandair
Sat 15/12
LHR - KEF • Direct
Direct flights
You can fly direct with Icelandair and British Airways. Average duration is 3h 16m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 39% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £221 (return)
Shortest trip • 7h 32m (one-way)
Insights
Insights
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We hope you enjoy your trip to Reykjavik Keflavik Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Heathrow to Reykjavik (LHR-KEF)

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

Recent return flight deals from Heathrow to Reykjavik

Sat, 5 Dec - Wed, 9 Dec
Icelandair Logo
20:35 - 23:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mdirect
Icelandair Logo
16:20 - 19:30KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 10mdirect
£111Icelandair
Mon, 7 Dec - Wed, 16 Dec
Icelandair Logo
20:35 - 23:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mdirect
Icelandair Logo
16:20 - 19:30KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 10mdirect
£135Icelandair
Sat, 28 Nov - Sat, 5 Dec
British Airways Logo
11:45 - 15:05LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 20mdirect
British Airways Logo
16:05 - 19:05KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mdirect
£135British Airways
Mon, 7 Dec - Wed, 16 Dec
Icelandair Logo
20:35 - 23:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mdirect
Icelandair Logo
16:20 - 19:30KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 10mdirect
£136Icelandair
Sat, 28 Nov - Fri, 4 Dec
British Airways Logo
11:45 - 15:05LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 20mdirect
British Airways Logo
18:10 - 21:10KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mdirect
£139British Airways
Sat, 28 Nov - Sat, 5 Dec
British Airways Logo
11:45 - 15:05LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 20mdirect
British Airways Logo
16:05 - 19:05KEF  Reykjavik Keflavik Intl-LHR London Heathrow
3h 00mdirect
£141British Airways
Thu, 19 Nov - Thu, 26 Nov
Lufthansa Logo
06:35 - 14:20LHR  London Heathrow-KEF Reykjavik Keflavik Intl
7h 45m1 stop Munich Franz Josef Strauss
Lufthansa Logo
15:10 - 22:55KEF  Reykjavik Keflavik Intl-LHR London Heathrow
7h 45m1 stop Munich Franz Josef Strauss
£159Lufthansa
Mon, 7 Dec - Wed, 16 Dec
Multiple Airlines Logo
20:35 - 23:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
3h 15mdirect
Multiple Airlines Logo
14:45 - 20:50KEF  Reykjavik Keflavik Intl-LHR London Heathrow
6h 05m1 stop Amsterdam Schiphol
£163Multiple Airlines
Fri, 19 Feb - Sun, 21 Feb
Scandinavian Airlines Logo
19:50 - 10:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
15h 00m1 stop Oslo Gardermoen
Scandinavian Airlines Logo
12:25 - 21:35KEF  Reykjavik Keflavik Intl-LHR London Heathrow
9h 10m1 stop Oslo Gardermoen
£181Scandinavian Airlines
Fri, 19 Feb - Sun, 21 Feb
Scandinavian Airlines Logo
19:50 - 10:50LHR  London Heathrow-KEF Reykjavik Keflavik Intl
15h 00m1 stop Oslo Gardermoen
Scandinavian Airlines Logo
12:25 - 21:35KEF  Reykjavik Keflavik Intl-LHR London Heathrow
9h 10m1 stop Oslo Gardermoen
£181Scandinavian Airlines
Booking Insights

Price, demand, and travel trends for London Heathrow Airport 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 return flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

Return flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport typically range from £200 to £364. The lowest price found in the past 5 days was £135 on Icelandair.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport. It's 10% cheaper than the average day, while Monday is the most expensive, with prices 5% higher.

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

•January is the cheapest month to fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport at £165 return.
•July (£361) and August (£353) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 119% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport are cheapest 15 weeks before departure. Booking in this window typically costs about 43% 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 Heathrow to Reykjavik

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

Stefanie Waldek

Expert on 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 out at sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Key details for London Heathrow Airport to Reykjavik Keflavik Intl Airport flights

Low season

December

Cheapest flight

£63
Beat the crowds with an average 10% drop in traveller numbers.
The most popular month to fly with an average 12% increase in traveller numbers.
One-way flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport

When to book flights from Heathrow to Reykjavik

Are your dates flexible? Find out the best times to travel from Heathrow to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport 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 Heathrow Airport to Reykjavik Keflavik Intl Airport?

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

    • Earliest: departs at 07:25 and lands at 10:41
    • Latest: departs at 20:35 and lands at 23:51.

    The flight takes about 3h 16m.

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

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

    • Economy class
    • Business Class

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

    A direct flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport takes 3h 16m, covering 1,177 miles.

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

    Return flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport range from £200 to £364, with an average of £271 over the past 12 months. Anything below £200 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 49% above the £271 route average. Book 15 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £221 return via Amsterdam Schiphol (AMS), compared with £271 for direct.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £37–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

    The Boeing 777 family is used most often on this route, operated mainly by British Airways and Finnair. Other aircraft seen on the route include Airbus A320neo variants.

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

    Morning is the busiest departure period on London Heathrow Airport to Reykjavik Keflavik Intl Airport flights, with 34% leaving in that window. Afternoon departures account for 33%, Evening flights for 33%, and Night flights for 0%.

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

    One-way fares from London Heathrow Airport to Reykjavik Keflavik Intl Airport are currently lower than usual. Average one-way flight prices are about £83, which is 54% below the typical average for this route.

  • Which car hire options are available at Reykjavik Keflavik Intl Airport (KEF)?

    Reykjavik Keflavik Intl Airport (KEF) hosts 5 major car hire companies, with daily rates starting from around £12 for economy cars. Top options include:

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

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

    Flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport usually depart from London Heathrow (LHR) and arrive at Reykjavik Keflavik Intl (KEF).

  • What time of day has the fewest delays on flights from London Heathrow Airport 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 on the route from London Heathrow Airport 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 Heathrow Airport to Reykjavik Keflavik Intl Airport route, 10% of flights were delayed in the past three months, with delays averaging 1h 46m.

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

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

    • Kastrup Copenhagen (CPH) – 50% of one-stop connections
    • Oslo Gardermoen (OSL) – 32% of one-stop connections
    • Vienna Intl (VIE) – 9% of one-stop connections
    • Zurich (ZRH) – 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 15% on flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport. Tuesday is the cheapest departure day at £245 return on average, while Monday is the most expensive at £285, a difference of £40.

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

  • Which airlines fly from London Heathrow Airport to Reykjavik Keflavik Intl Airport?

    2 airlines operate flights between London Heathrow Airport and Reykjavik Keflavik Intl Airport. The airlines offering direct flights on this route include:

    • Icelandair
    • British Airways

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

    Flying via Kastrup Copenhagen (CPH) gives the shortest average 1-stop total travel time of 7h 32m, compared to 8h 59m via Amsterdam Schiphol (AMS) and 10h 46m via Zurich (ZRH).

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

    Some of the most popular sights in Reykjavik Keflavik Intl Airport are Reykjavik Free Church and Harpa. 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 Heathrow Airport to Reykjavik Keflavik Intl Airport flights?

    Among airlines operating London Heathrow Airport to Reykjavik Keflavik Intl Airport flights:

    • Icelandair: offers extra legroom; 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 Heathrow Airport 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
    • British Airways: a cabin bag and a checked bag in Economy class

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

Your guide to booking London Heathrow Airport 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 Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average £245, about £40 less than Monday fares (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 43% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Reykjavik Keflavik Intl Airport trip for January. Fares historically average £165 return in that month – typically £196 less than the most expensive month, which is July (based on the last 12 months).
  • For the best chance of arriving on time, fly with British Airways. Over the past three months, 90% of British Airways flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport arrived on time, slightly above the route average of 90%. When flights on this route arrive late, they're delayed by an average of 1h 46m, 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 Amsterdam Schiphol Airport (AMS) can be cheaper than flying direct. The cheapest stopover option averages £221 return on this route – about £49 less than direct flights (based on the last 12 months).

Prefer to fly direct from London Heathrow Airport to Reykjavik-Keflavik Airport?

 
Find which airlines fly direct from London Heathrow Airport to Reykjavik Keflavik Intl Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Reykjavik Keflavik Intl

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair

British Airways,Icelandair

Thursday

British Airways,Icelandair

British Airways,Icelandair

Friday

British Airways,Icelandair

British Airways,Icelandair

Saturday

British Airways,Icelandair

British Airways,Icelandair

Sunday

British Airways,Icelandair

British Airways,Icelandair

See more direct flights

Direct returns

Reykjavik Keflavik Intl to London Heathrow

Monday

British Airways,Icelandair

British Airways,Icelandair

Tuesday

British Airways,Icelandair

British Airways,Icelandair

Wednesday

British Airways,Icelandair

British Airways,Icelandair

Thursday

British Airways,Icelandair

British Airways,Icelandair

Friday

British Airways,Icelandair

British Airways,Icelandair

Saturday

British Airways,Icelandair

British Airways,Icelandair

Sunday

British Airways,Icelandair

British Airways,Icelandair

See more direct flights

More options for your flight from Heathrow to Reykjavik

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