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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 £76 and round-trip from £100. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Thu, Nov 26 | Icelandair
      KEF 12:30
      3h 10m
      LGW 15:40
      Reykjavik - London | Thu, Dec 3 | easyJet
      £100 £134
      25% off
      25% off
      £134 £100
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Dec 13 | easyJet
      £102 £134
      24% off
      24% off
      £134 £102
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Wed, Dec 9 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Dec 13 | easyJet
      £102 £134
      24% off
      24% off
      £134 £102
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Wed, Dec 2 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Dec 6 | easyJet
      £103
      23% off
      £134 £103
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Tue, Dec 8 | Icelandair
      KEF 10:00
      3h
      LTN 13:00
      Reykjavik - London | Sat, Dec 12 | easyJet
      £104
      22% off
      £134 £104
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      KEF 10:00
      3h
      LTN 13:00
      Reykjavik - London | Sat, Dec 19 | easyJet
      £104
      22% off
      £134 £104
    • 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
      £105
      22% off
      £134 £105
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Tue, Dec 1 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sun, Dec 6 | easyJet
      £105
      22% off
      £134 £105
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Thu, Dec 10 | Icelandair
      KEF 17:00
      2h 55m
      LTN 19:55
      Reykjavik - London | Thu, Dec 17 | easyJet
      £105
      22% off
      £134 £105
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
      REK 15:00
      6h
      Nonstop
      LON 16:00
      Reykjavik - London | Tue, Oct 20 | Normal Airline
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    • Cheapest
      LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 19 | Icelandair
      £76 £102
      25% off
      25% off
      £102 £76
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Sun, Nov 22 | Icelandair
      £77 £102
      25% off
      25% off
      £102 £77
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Dec 3 | Icelandair
      £77 £102
      25% off
      25% off
      £102 £77
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 26 | Icelandair
      £77
      25% off
      £102 £77
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Wed, Dec 2 | Icelandair
      £79
      23% off
      £102 £79
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      £81
      82% off
      £445 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      £81
      82% off
      £445 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Wed, Nov 25 | Icelandair
      £82
      20% off
      £102 £82
    • LHR 20:35
      3h 20m
      Nonstop
      KEF 23:55
      London - Reykjavik | Sun, Nov 29 | Icelandair
      £82
      20% off
      £102 £82
    • 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
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      £81 £270
      70% off
      70% off
      £270 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      £81 £270
      70% off
      70% off
      £270 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      £82 £270
      70% off
      70% off
      £270 £82
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      £82
      70% off
      £270 £82
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      £86
      68% off
      £270 £86
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      £90
      67% off
      £270 £90
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      £92
      66% off
      £270 £92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 5 | Icelandair
      £92
      66% off
      £270 £92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Sun, Nov 1 | Icelandair
      £129
      52% off
      £270 £129
    • 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
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      £81 £445
      82% off
      82% off
      £445 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      £81 £445
      82% off
      82% off
      £445 £81
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      £82 £445
      82% off
      82% off
      £445 £82
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      £82
      82% off
      £445 £82
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      £86
      81% off
      £445 £86
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      £90
      80% off
      £445 £90
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      £92
      79% off
      £445 £92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 5 | Icelandair
      £92
      79% off
      £445 £92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Sun, Nov 1 | Icelandair
      £129
      71% off
      £445 £129
    • LON 13:00
      17h 25m
      1 stop
      REK 14:00
      London - Reykjavik | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      LHR 07:40
      3h 5m
      Nonstop
      KEF 09:45
      London - Reykjavik | Mon, Oct 19 | British Airways
      £202 £629
      68% off
      68% off
      £629 £202
    • LHR 07:35
      3h 5m
      Nonstop
      KEF 09:40
      London - Reykjavik | Thu, Oct 22 | British Airways
      £209 £629
      67% off
      67% off
      £629 £209
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Thu, Oct 22 | Icelandair
      £218 £629
      65% off
      65% off
      £629 £218
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Wed, Oct 21 | Icelandair
      £218
      65% off
      £629 £218
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Tue, Oct 20 | Icelandair
      £218
      65% off
      £629 £218
    • LHR 07:50
      3h 5m
      Nonstop
      KEF 09:55
      London - Reykjavik | Tue, Oct 20 | British Airways
      £229
      64% off
      £629 £229
    • LHR 07:25
      3h 5m
      Nonstop
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      £239
      62% off
      £629 £239
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Mon, Oct 19 | Icelandair
      £268
      56% off
      £629 £268
    • LHR 13:05
      3h 10m
      Nonstop
      KEF 15:15
      London - Reykjavik | Sat, Oct 17 | Icelandair
      £285
      55% off
      £629 £285
    • 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
      Nonstop
      KEF 10:00
      London - Reykjavik | Wed, Oct 21 | British Airways
      £300 £371
      19% off
      19% off
      £371 £300
    • LHR 07:25
      3h 5m
      Nonstop
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      £239 £371
      36% off
      36% off
      £371 £239
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Wed, Oct 21 | Icelandair
      £218 £371
      41% off
      41% off
      £371 £218
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Sat, Nov 7 | British Airways
      £144
      61% off
      £371 £144
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Sat, Nov 7 | Icelandair
      £268
      28% off
      £371 £268
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Tue, Dec 8 | British Airways
      £93
      75% off
      £371 £93
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Tue, Jan 5 | Icelandair
      £211
      43% off
      £371 £211
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Wed, Dec 16 | British Airways
      £95
      74% off
      £371 £95
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Mon, Dec 14 | Icelandair
      £278
      25% off
      £371 £278
    • 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 for one-way flights from Heathrow Airport to Keflavík International Airport?

Data is based on average one-way flight prices from Heathrow Airport to Keflavík International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Heathrow Airport to Keflavík International Airport, the best time to buy is in January, with an average price of £149. You’ll want to avoid October, when the average price can reach as high as £296.

£296
£223
£149
£76
    Cheapest
  • £296
    Oct
  • £152
    Nov
  • £240
    Dec
  • £149
    Jan
  • £162
    Feb
  • £189
    Mar
  • £164
    Apr
  • £175
    May
  • £184
    Jun
  • £255
    Jul
  • £268
    Aug
  • £190
    Sep

What’s the cheapest month to fly round-trip from Heathrow Airport to Keflavík International Airport?

The data is based on the past 12 months and shows the average monthly round-trip 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 typically the cheapest month to find flights from Heathrow Airport to Keflavík International Airport, with an average price of £267. In contrast, December is usually the most expensive month, with average fares reaching £483.

£483
£375
£267
£159
    Cheapest
  • £380
    Oct
  • £267
    Nov
  • £483
    Dec
  • £328
    Jan
  • £340
    Feb
  • £436
    Mar
  • £408
    Apr
  • £362
    May
  • £431
    Jun
  • £471
    Jul
  • £463
    Aug
  • £354
    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 day to depart from Heathrow Airport to Keflavík International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Wednesday, as ticket prices are usually the highest that day.

£221
£200
£178
£157
  • £219
    Mon
  • £178
    Tue
  • £221
    Wed
  • £194
    Thu
  • £197
    Fri
  • £204
    Sat
  • £191
    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 £76) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From £76
British Airways
From £92
Scandinavian Airlines
From £106
KLM
From £123
Brussels Airlines
From £140
Lufthansa
From £198
LOT Polish Airlines
From £206
Swiss Airlines
From £230
Finnair
From £242
Air France
From £255

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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 1,899.12 km
Cheapest one-way ticket price £76
Cheapest return ticket price £100

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 £406 in October, the most expensive month to book this route.
  • The earliest flight departs from Heathrow Airport (LHR) at 07:35 and arrives in Keflavík International Airport (KEF) at 10:55.
  • The latest flight departs from Heathrow Airport (LHR) at 20:35 and arrives in Keflavík International Airport (KEF) at 23:55.
    • The distance from Keflavík International Airport to downtown is about 38 km, by taxi about 50 minutes.
    • The distance from Reykjavik Domestic Airport to downtown is about 2 km, by taxi about 20 minutes.
  • The closest airport to Keflavík International Airport (KEF) is Reykjavik Domestic Airport. The distance is around 37 km.
  • 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 £76, and round-trip fares start from £100. The current lowest fare is a Icelandair flight departing on Thu, Nov 19; 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 £258. 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.

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