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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 €97 and round-trip from €31. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Sat, Nov 21 | Icelandair
      €97 €121
      20% off
      20% off
      €121 €97
    • Cheapest
      LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      €97 €807
      88% off
      88% off
      €807 €97
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Dec 11 | Icelandair
      €98 €121
      19% off
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Wed, Dec 9 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Thu, Dec 3 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Sun, Nov 29 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Sat, Nov 28 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Tue, Dec 8 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Sun, Dec 6 | Icelandair
      €98
      19% off
      €121 €98
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sat, Dec 12 | Icelandair
      KEF 16:20
      3h 10m
      LHR 19:30
      Reykjavik - London | Fri, Dec 18 | Icelandair
      €31 €167
      81% off
      81% off
      €167 €31
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Thu, Dec 10 | Icelandair
      KEF 12:30
      3h 10m
      LGW 15:40
      Reykjavik - London | Thu, Dec 17 | easyJet
      €119 €167
      28% off
      28% off
      €167 €119
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Wed, Dec 9 | Icelandair
      KEF 12:20
      3h 10m
      LGW 15:30
      Reykjavik - London | Wed, Dec 16 | easyJet
      €122 €167
      27% off
      27% off
      €167 €122
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sun, Dec 13 | Icelandair
      KEF 12:20
      3h 10m
      LGW 15:30
      Reykjavik - London | Wed, Dec 16 | easyJet
      €123
      26% off
      €167 €123
    • LHR 11:45
      3h 20m
      KEF 15:05
      London - Reykjavik | Sun, Dec 13 | British Airways
      KEF 12:20
      3h 10m
      LGW 15:30
      Reykjavik - London | Wed, Dec 16 | easyJet
      €127
      24% off
      €167 €127
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Wed, Nov 25 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Nov 29 | easyJet
      €127
      24% off
      €167 €127
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sun, Nov 22 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Nov 29 | easyJet
      €127
      24% off
      €167 €127
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Tue, Dec 15 | Icelandair
      KEF 19:55
      2h 55m
      LTN 22:50
      Reykjavik - London | Sat, Dec 19 | easyJet
      €128
      23% off
      €167 €128
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sun, Dec 6 | Icelandair
      KEF 10:00
      3h
      LTN 13:00
      Reykjavik - London | Sat, Dec 12 | easyJet
      €128
      23% off
      €167 €128
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
      REK 15:00
      6h
      Direct
      LON 16:00
      Reykjavik - London | Tue, Oct 20 | Normal Airline
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    • Cheapest nonstop
      LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      €97 €807
      88% off
      88% off
      €807 €97
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      €98 €807
      88% off
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      €98 €807
      88% off
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      €98
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Thu, Nov 19 | Icelandair
      €100
      88% off
      €807 €100
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €102
      87% off
      €807 €102
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      €108
      87% off
      €807 €108
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      €169
      79% off
      €807 €169
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Nov 2 | Icelandair
      €198
      75% off
      €807 €198
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      €97 €807
      88% off
      88% off
      €807 €97
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      €98 €807
      88% off
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      €98 €807
      88% off
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      €98
      88% off
      €807 €98
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Thu, Nov 19 | Icelandair
      €100
      88% off
      €807 €100
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €102
      87% off
      €807 €102
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      €108
      87% off
      €807 €108
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      €169
      79% off
      €807 €169
    • LHR 20:35
      3h 15m
      Direct
      KEF 23:50
      London - Reykjavik | Mon, Nov 2 | Icelandair
      €198
      75% off
      €807 €198
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      LHR 13:05
      3h 10m
      Direct
      KEF 15:15
      London - Reykjavik | Sat, Oct 17 | Icelandair
      €335 €986
      66% off
      66% off
      €986 €335
    • LHR 07:55
      3h 5m
      Direct
      KEF 10:00
      London - Reykjavik | Wed, Oct 21 | British Airways
      €377 €986
      62% off
      62% off
      €986 €377
    • LHR 07:25
      3h 5m
      Direct
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      €422 €986
      56% off
      56% off
      €986 €422
    • LHR 07:20
      3h 5m
      Direct
      KEF 09:25
      London - Reykjavik | Sat, Oct 17 | British Airways
      €505
      49% off
      €986 €505
    • LHR 21:25
      3h 10m
      Direct
      KEF 23:35
      London - Reykjavik | Sun, Oct 18 | Icelandair
      €533
      46% off
      €986 €533
    • LHR 21:25
      3h 10m
      Direct
      KEF 23:35
      London - Reykjavik | Wed, Oct 21 | Icelandair
      €623
      37% off
      €986 €623
    • LHR 21:25
      3h 10m
      Direct
      KEF 23:35
      London - Reykjavik | Tue, Oct 20 | Icelandair
      €623
      37% off
      €986 €623
    • LHR 07:50
      3h 5m
      Direct
      KEF 09:55
      London - Reykjavik | Tue, Oct 20 | British Airways
      €625
      37% off
      €986 €625
    • LHR 21:25
      3h 10m
      Direct
      KEF 23:35
      London - Reykjavik | Thu, Oct 22 | Icelandair
      €653
      34% off
      €986 €653
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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    • LHR 07:55
      3h 5m
      Direct
      KEF 10:00
      London - Reykjavik | Wed, Oct 21 | British Airways
      €377 €770
      51% off
      51% off
      €770 €377
    • LHR 07:25
      3h 5m
      Direct
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      €422 €770
      45% off
      45% off
      €770 €422
    • LHR 21:25
      3h 10m
      Direct
      KEF 23:35
      London - Reykjavik | Wed, Oct 21 | Icelandair
      €623 €770
      19% off
      19% off
      €770 €623
    • LHR 07:35
      3h 15m
      Direct
      KEF 10:50
      London - Reykjavik | Sat, Nov 7 | British Airways
      €171
      78% off
      €770 €171
    • LHR 12:15
      3h 15m
      Direct
      KEF 15:30
      London - Reykjavik | Sat, Nov 7 | Icelandair
      €317
      59% off
      €770 €317
    • LHR 07:35
      3h 15m
      Direct
      KEF 10:50
      London - Reykjavik | Tue, Dec 8 | British Airways
      €113
      85% off
      €770 €113
    • LHR 12:15
      3h 15m
      Direct
      KEF 15:30
      London - Reykjavik | Tue, Jan 5 | Icelandair
      €287
      63% off
      €770 €287
    • LHR 12:15
      3h 15m
      Direct
      KEF 15:30
      London - Reykjavik | Wed, Dec 23 | Icelandair
      €252
      67% off
      €770 €252
    • LHR 12:15
      3h 15m
      Direct
      KEF 15:30
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €253
      67% off
      €770 €253
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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Displayed flight fares from London to Reykjavik are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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 €177. It is best to avoid October, when the average price can reach €352.

€352
€265
€177
€90
    Cheapest
  • €352
    Oct
  • €181
    Nov
  • €286
    Dec
  • €177
    Jan
  • €193
    Feb
  • €225
    Mar
  • €195
    Apr
  • €209
    May
  • €219
    Jun
  • €303
    Jul
  • €319
    Aug
  • €226
    Sep

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 €318. December is usually the most expensive month, with an average price reaching €575.

€575
€447
€318
€190
    Cheapest
  • €453
    Oct
  • €318
    Nov
  • €575
    Dec
  • €391
    Jan
  • €405
    Feb
  • €519
    Mar
  • €486
    Apr
  • €431
    May
  • €513
    Jun
  • €560
    Jul
  • €551
    Aug
  • €422
    Sep

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.

€263
€238
€212
€187
  • €261
    Mon
  • €212
    Tue
  • €263
    Wed
  • €231
    Thu
  • €235
    Fri
  • €242
    Sat
  • €228
    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 €97) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From €97
British Airways
From €108
Vueling Airlines
From €127
Scandinavian Airlines
From €129
KLM
From €131
LOT Polish Airlines
From €177
Lufthansa
From €223
Swiss Airlines
From €223
Finnair
From €303
Austrian Airlines
From €327

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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

  2. BA800

    Heathrow Airport

    07:25

    LHR

    3h 15m

    10:40

    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 distance 1,899.12km
Cheapest one-way ticket price €97
Cheapest return ticket price €31

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 47 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 21:35, 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 €484 in October, 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 €97, and round-trip fares start from €31. The current lowest fare is a Icelandair flight departing on Sat, Nov 21; 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 2 hours 44 minutes, and around 21 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 €308. Prices may vary depending on the departure date, airline, and availability.
  • Heathrow Airport to Keflavík International Airport operates around 21 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 estimated lowest price 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 prices (incl. taxes, fuel surcharge, 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 were updated within the last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled 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 check the customer support pages.