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Cheap Flights from London Heathrow to Reykjavik Keflavik

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Compare London Heathrow to Reykjavik Keflavik flight deals

Find the cheapest month or even day of the year to fly to Reykjavik Keflavik

Book the best Reykjavik Keflavik fare with no extra fees

Flight deals from London Heathrow to Reykjavik Keflavik

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Reykjavik Keflavik? Find the lowest prices on one-way and return tickets right here.
Reykjavik.ج.م.‏ 4,257 per passenger.Departing Sun, 1 Feb.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 1 Feb, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,257, select.
Reykjavik.ج.م.‏ 4,294 per passenger.Departing Wed, 10 Dec.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 10 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,294, select.
Reykjavik.ج.م.‏ 4,307 per passenger.Departing Sun, 11 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 11 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,307, select.
Reykjavik.ج.م.‏ 4,483 per passenger.Departing Sun, 30 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 30 Nov, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,483, select.
Reykjavik.ج.م.‏ 4,498 per passenger.Departing Sun, 1 Mar.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 1 Mar, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,498, select.
Reykjavik.ج.م.‏ 4,785 per passenger.Departing Sun, 18 May.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 18 May, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 4,785, select.
Reykjavik.ج.م.‏ 5,179 per passenger.Departing Mon, 21 Apr.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 21 Apr, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 5,179, select.
Reykjavik.ج.م.‏ 5,179 per passenger.Departing Sun, 31 Aug.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 31 Aug, arriving in Reykjavik Keflavik.Price includes taxes and charges.From ج.م.‏ 5,179, select.

Find the cheapest month to fly from London Heathrow to Reykjavik Keflavik

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Reykjavik Keflavik flights are currently cheapest in February.
Mar
from ج.م.‏ 5,264
Apr
from ج.م.‏ 5,179
May
from ج.م.‏ 4,785
Jun
from ج.م.‏ 5,329
Jul
from ج.م.‏ 8,188
Aug
from ج.م.‏ 5,179
Sep
from ج.م.‏ 5,381
Oct
from ج.م.‏ 5,381
Nov
from ج.م.‏ 4,483
Dec
from ج.م.‏ 4,294
Jan
from ج.م.‏ 4,307
Feb
from ج.م.‏ 4,257

Direct flights from London Heathrow to Reykjavik Keflavik

London Heathrow to Reykjavik Keflavik: Alternative routes

Compare routes from London Heathrow to Reykjavik below. You may find an airport to fly into that's cheaper, faster, or easier than Reykjavik Keflavik.

London to Reykjavik: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 4,257
Cheapest month to flyFebruary
Average flight time3 hrs, 13 mins
Most popular airlineIcelandair
Average flights per week89

Finding cheap flights from London Heathrow to Reykjavik Keflavik: Frequently asked questions

The best price we found for a return flight from London Heathrow to Reykjavik Keflavik is ج.م.‏ 7,155. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 13 minutes is the average flight time from London Heathrow to Reykjavik Keflavik.
Icelandair, Emirates and TAP Air Portugal fly direct from London Heathrow to Reykjavik Keflavik.
As of March 2025, there are 89 flights per week flying from London Heathrow to Reykjavik Keflavik.
The cheapest month to fly from London Heathrow to Reykjavik Keflavik is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Reykjavik Keflavik Airport on Sunday, 18 January 2026.
Yes – the average flight time is 3 hours and 13 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Reykjavik Keflavik but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Reykjavik is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to Reykjavik Keflavik.

Travelling from London Heathrow Airport (LHR) to Keflavik International Airport (KEF): what you need to know

  • Expect to be in the skies for 3 hours 10 minutes. That's the average duration of a direct flight from London Heathrow Airport to Keflavik International Airport. Reykjavik and London have the same timezone (UTC+0).

  • Choose from 98 weekly flights from London Heathrow Airport to Keflavik International Airport. The 07:15 departure with British Airways is the earliest you can take between LHR and KEF. Icelandair operates the latest service of the day at 21:25 if you'd rather not get up at the crack of dawn.

  • Travelling during a peak month such as July? Major public holidays and other popular seasons can result in longer queues at security. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • British Airways has direct flights from London Heathrow Airport to Keflavik International Airport. Book with this popular carrier, then get ready to tick off the sights in Reykjavik — and maybe even more of Iceland if your schedule allows.

  • If you want to break up your flight from London Heathrow Airport to Keflavik International Airport, think about adding a stopover. Just uncheck 'Direct flights only' and find a city that appeals to you. The most popular stopovers on the LHR - KEF route are:

    • Amsterdam Airport Schiphol

    • Charles de Gaulle Airport

    • Goteborg Landvetter Airport

  • To see if you need a visa to enter Iceland, check with your carrier and the local embassy or consulate. They'll have the most up-to-date details, including additional documents you may need after booking your cheap ticket from LHR to KEF.

How to find the cheapest flights from London Heathrow Airport (LHR) to Keflavik International Airport (KEF)

  • The best price we've seen for a one-way ticket from London Heathrow Airport to Keflavik International Airport is ج.م.‏ 4,257. The cheapest price for a return flight is ج.م.‏ 7,155. Keep in mind that fares may change due to demand at the time of booking.

  • To secure cheap flight tickets from LHR to KEF, reserve your journey 4 months ahead of your planned departure.

  • The cheapest month for flight tickets from London Heathrow Airport to Keflavik International Airport is December. Use the 'Whole month' tool to see the lowest prices if you have flexible travel dates.

  • Finding a cheap ticket from LHR to KEF is easy with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as the price has dropped.

  • Tailor your flights using filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from London Heathrow Airport to Keflavik International Airport.

Handy information about London Heathrow Airport (LHR)

  • Travelling from central London to London Heathrow Airport takes around 1 hour and 1 minute on public transport. If you drive, ride-share or hail a cab, you'll cover the 31 kilometres in 57 minutes or so, depending on traffic conditions.

  • After a leisurely start to your holiday? Stay near LHR. Whether you're catching an early flight from London Heathrow Airport to Keflavik International Airport or just don't like being rushed, these stays have you covered:

Arriving at Keflavik International Airport (KEF)

Getting from Keflavik International Airport (KEF) to central Reykjavik

  • Keflavik International Airport to the centre of Reykjavik is around 49 minutes in a car. It's approximately 48 kilometres away. Find out what options are available, such as cabs, car rentals or ride-sharing services.

  • If you're travelling on public transport, expect a journey of roughly 1 hour and 13 minutes.

When to fly to Keflavik International Airport (KEF)

  • The quietest month for a flight from London Heathrow Airport to Keflavik International Airport is February, while July is the most popular. Choose the ideal time to visit Reykjavik based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Reykjavik is July, with temperatures ranging between 8 ºC and 15 ºC. Lock in your flights from London Heathrow Airport to Keflavik International Airport in this month if you like this kind of weather.

  • If you like travelling in cooler conditions, look for a cheap ticket from LHR to KEF in December. Temperatures average between -6 ºC and 4 ºC then.

More about Reykjavik

  • Start your Reykjavik trip right by finding a wonderful place to stay. As soon as you've booked your flight from LHR to KEF, explore our range of accommodation options including:

  • Hallgrimskirkja silhouette and Perlan are just a couple of the leading attractions to put on your Reykjavik must-do list. Keep the momentum going by heading to National Museum of Iceland.

Complete your Reykjavik trip with hotels and a car rental

  • After you've secured your cheap ticket to Keflavik International Airport, discover the lowest prices and exclusive offers on hotels. You can also compare a range of car rental companies in one place to get the best car rental price for your Reykjavik getaway.

Plan the rest of your trip from London to Reykjavik

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.