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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 €91 and round-trip from €121. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sun, Dec 6 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sat, Dec 12 | easyJet
      €121 €160
      24% off
      24% off
      €160 €121
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Tue, Dec 8 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sat, Dec 12 | easyJet
      €122 €160
      24% off
      24% off
      €160 €122
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      KEF 10:00
      3h
      LTN 13:00
      Reykjavik - London | Fri, Dec 11 | easyJet
      €123 €160
      23% off
      23% off
      €160 €123
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sun, Dec 13 | Icelandair
      KEF 10:00
      3h
      LTN 13:00
      Reykjavik - London | Fri, Dec 18 | easyJet
      €123
      23% off
      €160 €123
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      KEF 19:55
      2h 55m
      LTN 22:50
      Reykjavik - London | Fri, Dec 18 | easyJet
      €124
      23% off
      €160 €124
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Mon, Nov 30 | Icelandair
      KEF 10:55
      3h
      LTN 13:55
      Reykjavik - London | Sat, Dec 5 | easyJet
      €124
      23% off
      €160 €124
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Wed, Dec 9 | Icelandair
      KEF 17:00
      2h 55m
      LTN 19:55
      Reykjavik - London | Wed, Dec 16 | easyJet
      €125
      22% off
      €160 €125
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Sat, Dec 12 | Icelandair
      KEF 20:10
      3h
      LTN 23:10
      Reykjavik - London | Thu, Dec 17 | easyJet
      €128
      20% off
      €160 €128
    • LHR 20:35
      3h 15m
      KEF 23:50
      London - Reykjavik | Tue, Dec 15 | Icelandair
      KEF 19:55
      2h 55m
      LTN 22:50
      Reykjavik - London | Fri, Dec 18 | easyJet
      €128
      20% off
      €160 €128
    • 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
      €91 €121
      25% off
      25% off
      €121 €91
    • Cheapest
      LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Sun, Nov 22 | Icelandair
      €91 €121
      25% off
      25% off
      €121 €91
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Dec 3 | Icelandair
      €92 €121
      24% off
      24% off
      €121 €92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 26 | Icelandair
      €92
      24% off
      €121 €92
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Wed, Dec 2 | Icelandair
      €94
      22% off
      €121 €94
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      €96
      88% off
      €776 €96
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Wed, Nov 25 | Icelandair
      €97
      20% off
      €121 €97
    • LHR 20:35
      3h 20m
      Nonstop
      KEF 23:55
      London - Reykjavik | Sun, Nov 29 | Icelandair
      €98
      19% off
      €121 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Sat, Nov 28 | 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
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 6 | Icelandair
      €96 €776
      88% off
      88% off
      €776 €96
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      €98 €776
      87% off
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      €98 €776
      87% off
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      €98
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 19 | Icelandair
      €100
      87% off
      €776 €100
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €102
      87% off
      €776 €102
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      €107
      86% off
      €776 €107
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 5 | Icelandair
      €154
      80% off
      €776 €154
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      €190
      76% off
      €776 €190
    • 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
      €96 €776
      88% off
      88% off
      €776 €96
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 7 | Icelandair
      €98 €776
      87% off
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Nov 23 | Icelandair
      €98 €776
      87% off
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Fri, Nov 20 | Icelandair
      €98
      87% off
      €776 €98
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 19 | Icelandair
      €100
      87% off
      €776 €100
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €102
      87% off
      €776 €102
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Mon, Dec 21 | Icelandair
      €107
      86% off
      €776 €107
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Nov 5 | Icelandair
      €154
      80% off
      €776 €154
    • LHR 20:35
      3h 15m
      Nonstop
      KEF 23:50
      London - Reykjavik | Thu, Oct 29 | Icelandair
      €190
      76% off
      €776 €190
    • 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
      €240 €776
      69% off
      69% off
      €776 €240
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Mon, Oct 19 | Icelandair
      €319 €776
      59% off
      59% off
      €776 €319
    • LHR 13:05
      3h 10m
      Nonstop
      KEF 15:15
      London - Reykjavik | Sat, Oct 17 | Icelandair
      €339 €776
      56% off
      56% off
      €776 €339
    • LHR 07:55
      3h 5m
      Nonstop
      KEF 10:00
      London - Reykjavik | Wed, Oct 21 | British Airways
      €390
      50% off
      €776 €390
    • LHR 07:25
      3h 5m
      Nonstop
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      €424
      45% off
      €776 €424
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Sun, Oct 18 | Icelandair
      €537
      31% off
      €776 €537
    • LHR 07:35
      3h 5m
      Nonstop
      KEF 09:40
      London - Reykjavik | Thu, Oct 22 | British Airways
      €575
      26% off
      €776 €575
    • LHR 07:20
      3h 5m
      Nonstop
      KEF 09:25
      London - Reykjavik | Sat, Oct 17 | British Airways
      €582
      25% off
      €776 €582
    • LHR 07:50
      3h 5m
      Nonstop
      KEF 09:55
      London - Reykjavik | Tue, Oct 20 | British Airways
      €588
      24% off
      €776 €588
    • 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
      €390 €775
      50% off
      50% off
      €775 €390
    • LHR 07:25
      3h 5m
      Nonstop
      KEF 09:30
      London - Reykjavik | Sun, Oct 18 | British Airways
      €424 €775
      45% off
      45% off
      €775 €424
    • LHR 21:25
      3h 10m
      Nonstop
      KEF 23:35
      London - Reykjavik | Wed, Oct 21 | Icelandair
      €627 €775
      19% off
      19% off
      €775 €627
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Sat, Nov 7 | British Airways
      €171
      78% off
      €775 €171
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Sat, Nov 7 | Icelandair
      €318
      59% off
      €775 €318
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Tue, Dec 8 | British Airways
      €113
      85% off
      €775 €113
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Tue, Jan 5 | Icelandair
      €251
      68% off
      €775 €251
    • LHR 07:35
      3h 15m
      Nonstop
      KEF 10:50
      London - Reykjavik | Wed, Dec 16 | British Airways
      €113
      85% off
      €775 €113
    • LHR 12:15
      3h 15m
      Nonstop
      KEF 15:30
      London - Reykjavik | Mon, Dec 14 | Icelandair
      €333
      56% off
      €775 €333
    • 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 €177. You’ll want to avoid October, when the average price can reach as high as €351.

€351
€264
€177
€90
    Cheapest
  • €351
    Oct
  • €180
    Nov
  • €286
    Dec
  • €177
    Jan
  • €192
    Feb
  • €224
    Mar
  • €195
    Apr
  • €208
    May
  • €219
    Jun
  • €302
    Jul
  • €319
    Aug
  • €226
    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 €317. In contrast, December is usually the most expensive month, with average fares reaching €574.

€574
€446
€317
€189
    Cheapest
  • €452
    Oct
  • €317
    Nov
  • €574
    Dec
  • €390
    Jan
  • €404
    Feb
  • €518
    Mar
  • €485
    Apr
  • €430
    May
  • €512
    Jun
  • €559
    Jul
  • €550
    Aug
  • €421
    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.

€263
€238
€212
€187
  • €261
    Mon
  • €212
    Tue
  • €263
    Wed
  • €230
    Thu
  • €235
    Fri
  • €242
    Sat
  • €227
    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 €96) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From €96
British Airways
From €109
Scandinavian Airlines
From €129
Brussels Airlines
From €166
KLM
From €170
LOT Polish Airlines
From €177
Lufthansa
From €224
Swiss Airlines
From €243
Finnair
From €303
Air France
From €315

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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 distance 1,899.12 km
Cheapest one-way ticket price €91
Cheapest return ticket price €121

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 €483 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 €91, and round-trip fares start from €121. 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 €307. 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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