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Heathrow Airport to Keflavík International Airport flight

Explore the cheapest one-way and round-trip flights from Heathrow Airport to Keflavík International Airport over the next 90 days, with one-way fares from £81 and round-trip from £104. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Wed, Nov 18 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 21 | easyJet
        £104 £135
        23% off
        23% off
        £135 £104
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Sat, Nov 7 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 14 | easyJet
        £105 £135
        22% off
        22% off
        £135 £105
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 10 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 14 | easyJet
        £106 £135
        21% off
        21% off
        £135 £106
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Thu, Nov 12 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 14 | easyJet
        £109
        19% off
        £135 £109
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Wed, Nov 11 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 14 | easyJet
        £109
        19% off
        £135 £109
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Fri, Nov 13 | Icelandair
        KEF 19:55
        2h 55m
        Direct
        LTN 22:50
        Reykjavik - London | Fri, Nov 20 | easyJet
        £112
        17% off
        £135 £112
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Sat, Nov 14 | Icelandair
        KEF 19:55
        2h 55m
        Direct
        LTN 22:50
        Reykjavik - London | Fri, Nov 20 | easyJet
        £112
        17% off
        £135 £112
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 17 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 21 | easyJet
        £114
        16% off
        £135 £114
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Fri, Nov 6 | Icelandair
        KEF 19:55
        2h 55m
        Direct
        LTN 22:50
        Reykjavik - London | Fri, Nov 13 | easyJet
        £115
        15% off
        £135 £115
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 3 | Icelandair
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 7 | easyJet
        £120
        11% off
        £135 £120
      • LHR 07:35
        3h 15m
        Direct
        KEF 10:50
        London - Reykjavik | Mon, Nov 16 | British Airways
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 21 | easyJet
        £122
        10% off
        £135 £122
      • LHR 07:25
        3h 15m
        Direct
        KEF 10:40
        London - Reykjavik | Thu, Nov 12 | British Airways
        KEF 10:55
        3h
        Direct
        LTN 13:55
        Reykjavik - London | Sat, Nov 14 | easyJet
        £122
        10% off
        £135 £122
      • LON 13:00
        17h 25m
        1 stop
        REK 14:00
        London - Reykjavik | Mon, Sep 21 | Normal Airline
        REK 15:00
        6h
        Direct
        LON 16:00
        Reykjavik - London | Wed, Sep 23 | Normal Airline
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      • Cheapest nonstop
        LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Fri, Nov 6 | Icelandair
        £81 £102
        21% off
        21% off
        £102 £81
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 17 | Icelandair
        £82 £102
        20% off
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Wed, Nov 18 | Icelandair
        £82 £102
        20% off
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 3 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Mon, Nov 2 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Thu, Nov 12 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Wed, Nov 11 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Tue, Nov 10 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Sat, Nov 7 | Icelandair
        £82
        20% off
        £102 £82
      • LHR 07:35
        3h 15m
        Direct
        KEF 10:50
        London - Reykjavik | Sat, Nov 7 | British Airways
        £91
        11% off
        £102 £91
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Sun, Nov 15 | Icelandair
        £91
        11% off
        £102 £91
      • LHR 20:35
        3h 15m
        Direct
        KEF 23:50
        London - Reykjavik | Thu, Nov 5 | Icelandair
        £92
        10% off
        £102 £92
      • LON 13:00
        17h 25m
        1 stop
        REK 14:00
        London - Reykjavik | Mon, Sep 21 | Normal Airline
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Displayed flight fares from Heathrow Airport to Keflavík International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Trip.com Price Insights: Flights from Heathrow Airport to Keflavík International Airport

What is the cheapest month to fly from Heathrow Airport to Keflavík International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Heathrow Airport to Keflavík International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Heathrow Airport to Keflavík International Airport are usually in January, with an average price of £148. It is best to avoid October, when the average price can reach £284.

£284
£216
£148
£80
    Cheapest
  • £212
    Sep
  • £284
    Oct
  • £151
    Nov
  • £240
    Dec
  • £148
    Jan
  • £161
    Feb
  • £188
    Mar
  • £163
    Apr
  • £175
    May
  • £184
    Jun
  • £254
    Jul
  • £267
    Aug

What is the cheapest month to fly return from Heathrow Airport to Keflavík International Airport?

The data is based on the past 12 months and shows the average monthly return fares from Heathrow Airport to Keflavík International Airport in the Trip.com database.

Based on Trip.com's data from the past 12 months, November is often the month to find the lowest fares from Heathrow Airport to Keflavík International Airport, with an average price of £266. December is usually the most expensive month, with an average price reaching £482.

£482
£374
£266
£158
    Cheapest
  • £297
    Sep
  • £332
    Oct
  • £266
    Nov
  • £482
    Dec
  • £327
    Jan
  • £339
    Feb
  • £435
    Mar
  • £407
    Apr
  • £361
    May
  • £430
    Jun
  • £469
    Jul
  • £461
    Aug

What is the cheapest day of the week to fly from Heathrow Airport to Keflavík International Airport?

The data is based on the past 12 months and shows the average ticket prices from Heathrow Airport to Keflavík International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Heathrow Airport to Keflavík International Airport is Tuesday, with average prices usually lower than other days. Avoid departing on Wednesday as prices are typically highest on that day.

£237
£207
£177
£147
  • £221
    Mon
  • £177
    Tue
  • £237
    Wed
  • £193
    Thu
  • £199
    Fri
  • £206
    Sat
  • £184
    Sun

Which airline offers the cheapest flights from Heathrow Airport to Keflavík International Airport?

The cheapest airline flying from Heathrow Airport to Keflavík International Airport is Icelandair (from £81) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From £81
British Airways
From £91
Vueling Airlines
From £102
Scandinavian Airlines
From £109
LOT Polish Airlines
From £148
KLM
From £181
Lufthansa
From £188
Swiss Airlines
From £204
Finnair
From £247
Austrian Airlines
From £251

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What is the flight schedule from Heathrow Airport to Keflavík International Airport?

Check the schedule for flights from London to Reykjavik and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. FI455

    Heathrow Airport

    21:25

    LHR

    3h 10m

    23:35

    KEF

    S M T W T F S
    Search
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About Heathrow Airport and Keflavík International Airport

Learn about Heathrow Airport (LHR) and Keflavík International Airport (KEF) — including location, terminals, transportation, and travel tips.

Flight distance1,899.12km
Cheapest one-way ticket price£81
Cheapest return ticket price£104

FAQs for Heathrow Airport to Keflavík International Airport Flights

  • How long is the flight from Heathrow Airport to Keflavík International Airport?

    Heathrow Airport to Keflavík International Airport takes about 2 hours 46 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 3 daily flights from Heathrow Airport (LHR) to Keflavík International Airport (KEF).
  • The earliest flight from Heathrow Airport to Keflavík International Airport departs at 07:20, and the last departs at 21:25, with about 3 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Heathrow Airport (LHR) to Keflavík International Airport (KEF) is quite popular. Without considering departure times or holidays, tickets cost around £317 in September, the most expensive month to book this route.
    • The distance from Keflavík International Airport to downtown is about 38km, by taxi about 50 minutes.
    • The distance from Reykjavik Domestic Airport to downtown is about 2km, by taxi about 20 minutes.
  • The closest airport to Keflavík International Airport (KEF) is Reykjavik Domestic Airport. The distance is around 37km.
  • Icelandair is a very popular airline operating an average of 4168 flights per month.
  • One-way flights from Heathrow Airport to Keflavík International Airport currently start from £81, and round-trip fares start from £104. The current lowest fare is a Icelandair flight departing on Fri, Nov 6; prices may vary depending on availability.
  • Yes. Icelandair and British Airways operate direct flights from Heathrow Airport to Keflavík International Airport, with an average flight time of 1 hour 42 minutes, and around 15 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Heathrow Airport to Keflavík International Airport is £232. Prices may vary depending on the departure date, airline, and availability.
  • Heathrow Airport to Keflavík International Airport operates around 15 weekly flights, mainly by Icelandair and British Airways. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Heathrow Airport and Keflavík International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.