Cheap Flights from London (LHR) to Reykjavik (KEF)

Compare London Heathrow to Reykjavik Keflavik flight deals

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Flight deals from London Heathrow to Reykjavik Keflavik

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Reykjavik Keflavik Airport? If you want to travel next month, return fares start from $323. Find the lowest prices on one-way and return tickets right here.

Reykjavik.$248 per passenger.Departing Tue, 17 Nov, returning Mon, 23 Nov.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Tue, 17 Nov, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 23 Nov, arriving in London Heathrow.Price includes taxes and charges.From $248, select.

Reykjavik.$250 per passenger.Departing Tue, 1 Dec, returning Tue, 15 Dec.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Tue, 1 Dec, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Tue, 15 Dec, arriving in London Heathrow.Price includes taxes and charges.From $250, select.

Reykjavik.$251 per passenger.Departing Sat, 30 Jan, returning Sun, 7 Feb.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Sat, 30 Jan, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Sun, 7 Feb, arriving in London Heathrow.Price includes taxes and charges.From $251, select.

Reykjavik.$253 per passenger.Departing Mon, 18 Jan, returning Sun, 24 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Mon, 18 Jan, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Sun, 24 Jan, arriving in London Heathrow.Price includes taxes and charges.From $253, select.

Reykjavik.$254 per passenger.Departing Mon, 30 Nov, returning Tue, 15 Dec.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Mon, 30 Nov, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Tue, 15 Dec, arriving in London Heathrow.Price includes taxes and charges.From $254, select.

Reykjavik.$256 per passenger.Departing Fri, 5 Feb, returning Mon, 8 Feb.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Fri, 5 Feb, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 8 Feb, arriving in London Heathrow.Price includes taxes and charges.From $256, select.

Reykjavik.$281 per passenger.Departing Wed, 9 Dec, returning Fri, 15 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Wed, 9 Dec, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Fri, 15 Jan, arriving in London Heathrow.Price includes taxes and charges.From $281, select.

Reykjavik.$283 per passenger.Departing Sun, 1 Nov, returning Wed, 13 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Sun, 1 Nov, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Wed, 13 Jan, arriving in London Heathrow.Price includes taxes and charges.From $283, select.

Reykjavik.$302 per passenger.Departing Tue, 9 Mar, returning Fri, 12 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 9 Mar, arriving in Reykjavik Keflavik.Inbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 12 Mar, arriving in London Heathrow.Price includes taxes and charges.From $302, select.

Reykjavik.$303 per passenger.Departing Thu, 15 Apr, returning Sat, 24 Apr.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Thu, 15 Apr, arriving in Reykjavik Keflavik.Inbound indirect flight with Scandinavian Airlines, departs from Reykjavik Keflavik on Sat, 24 Apr, arriving in London Heathrow.Price includes taxes and charges.From $303, select.

Reykjavik.$303 per passenger.Departing Sat, 31 Oct, returning Fri, 13 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 31 Oct, arriving in Reykjavik Keflavik.Inbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 13 Nov, arriving in London Heathrow.Price includes taxes and charges.From $303, select.

Reykjavik.$304 per passenger.Departing Thu, 25 Feb, returning Wed, 3 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 25 Feb, arriving in Reykjavik Keflavik.Inbound direct flight with British Airways departs from Reykjavik Keflavik on Wed, 3 Mar, arriving in London Heathrow.Price includes taxes and charges.From $304, select.

Reykjavik.$323 per passenger.Departing Thu, 15 Oct, returning Tue, 20 Oct.Return flight with Lufthansa and SWISS.Outbound indirect flight with Lufthansa, departs from London Heathrow on Thu, 15 Oct, arriving in Reykjavik Keflavik.Inbound indirect flight with SWISS, departs from Reykjavik Keflavik on Tue, 20 Oct, arriving in London Heathrow.Price includes taxes and charges.From $323, select.

Reykjavik.$336 per passenger.Departing Sun, 11 Apr, returning Tue, 11 May.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Sun, 11 Apr, arriving in Reykjavik Keflavik.Inbound indirect flight with Scandinavian Airlines, departs from Reykjavik Keflavik on Tue, 11 May, arriving in London Heathrow.Price includes taxes and charges.From $336, select.

Reykjavik.$344 per passenger.Departing Wed, 26 May, returning Wed, 9 Jun.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Wed, 26 May, arriving in Reykjavik Keflavik.Inbound indirect flight with Scandinavian Airlines, departs from Reykjavik Keflavik on Wed, 9 Jun, arriving in London Heathrow.Price includes taxes and charges.From $344, select.

Reykjavik.$349 per passenger.Departing Mon, 18 Jan, returning Mon, 15 Mar.Return flight with Icelandair.Outbound direct flight with Icelandair departs from London Heathrow on Mon, 18 Jan, arriving in Reykjavik Keflavik.Inbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 15 Mar, arriving in London Heathrow.Price includes taxes and charges.From $349, 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 November.

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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.

Reykjavik Domestic

1km from central Reykjavik

Closest

from $1,037

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Reykjavik Keflavik

37km from central Reykjavik

Cheapest

from $248

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London to Reykjavik: Flight information

The things to know before you go.

Cheapest flight found	$248
Cheapest month to fly	November
Average flight time	3 hrs, 11 mins
Most popular airline	Icelandair
Average flights per week	106

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

How much are return flights from London Heathrow to Reykjavik Keflavik?

The best price we found for a return flight from London Heathrow to Reykjavik Keflavik is $248. 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.

How long does it take to fly from London Heathrow to Reykjavik Keflavik?

3 hours and 11 minutes is the average flight time from London Heathrow to Reykjavik Keflavik.

Which airlines fly direct from London Heathrow to Reykjavik Keflavik?

Icelandair, Emirates and Air India fly direct from London Heathrow to Reykjavik Keflavik.

How many flights are there a week from London Heathrow to Reykjavik Keflavik?

As of September 2026, there are 106 flights per week flying from London Heathrow to Reykjavik Keflavik.

When is the cheapest time to fly from London Heathrow to Reykjavik Keflavik?

The cheapest month to fly from London Heathrow to Reykjavik Keflavik is usually November.

Which upcoming date is cheapest to fly from London Heathrow Airport to Reykjavik Keflavik Airport on?

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 Tuesday, 17 November 2026.

Can I get a direct flight from London Heathrow Airport to Reykjavik Keflavik Airport?

Yes – the average flight time is 3 hours and 11 minutes.

How can I find the best flight deal to Reykjavik Keflavik?

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.

When is the best time to book flights to Reykjavik?

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.

Which is the cheapest airline to fly from London Heathrow Airport to Reykjavik Keflavik with?

Currently, Icelandair offers the cheapest flight tickets to Reykjavik Keflavik.

Flying from London Heathrow Airport (LHR) to Reykjavik Keflavik Airport (KEF): what you need to know

The average duration of a direct flight from London Heathrow Airport to Reykjavik Keflavik Airport is 3 hours 15 minutes.
Reykjavik's timezone is UTC+0, which is the same as London.
Flights from LHR to KEF start at 07:05 — the first with British Airways. The latest departure is at 21:25 with Icelandair. In total, there are 21 weekly London Heathrow Airport to Reykjavik Keflavik Airport flights.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to board your LHR to KEF flight.
You can expect longer lines during popular months like July. Arriving up to four hours in advance for international flights and two hours for domestic departures will help ensure a smooth travel experience.
Flugfélag Íslands is your gateway to exploring Reykjavik (and maybe even some other great corners of Iceland!). Browse the direct flights from London Heathrow Airport to Reykjavik Keflavik Airport offered by this airline.
Flugfélag Íslands is the most frequently booked airline on this route.
British Airways tops the rankings as the most punctual carrier for LHR to KEF flights, with 92.0% of services arriving on schedule.
We make it a piece of cake to book a flight with a stopover. To see your options for tickets from London Heathrow Airport to Reykjavik Keflavik Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to explore the city of your choice. Popular stopovers between LHR and KEF include:
- Amsterdam Schiphol Airport
- Paris Charles de Gaulle Airport
- Dublin Airport

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

Currently, $115 is the cheapest price we've seen for a one-way London Heathrow Airport to Reykjavik Keflavik Airport flight. The best price for a return plane ticket is $248. Remember that fares can change due to demand when booking.
To get cheap tickets from LHR to KEF, book your trip seven months ahead of your departure date.
The cheapest month for flights from London Heathrow Airport to Reykjavik Keflavik Airport is December. Use the 'Whole month' tool to see the lowest prices if you have flexible travel dates.
You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll send you an update as soon as there's a better deal on cheap flights from LHR to KEF.
Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from London Heathrow Airport to Reykjavik Keflavik Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about London Heathrow Airport (LHR)

Of all flights departing from London Heathrow Airport, 78% arrive as scheduled at their destination.
To reach London Heathrow Airport from central London, it takes around 45 minutes if you're planning to drive. This depends on traffic though. It's approximately 24 kilometres from the airport to the city centre.
You can expect a trip time of about 25 minutes on public transport.
Get your journey off to a leisurely start by staying near LHR. Whether you're taking an early flight from London Heathrow Airport to Reykjavik Keflavik Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Reykjavik Keflavik Airport (KEF)

Book a hotel close to KEF if you're catching a late London Heathrow Airport to Reykjavik Keflavik Airport flight. Select one of these options and skip the long transfer:
Pick up a Reykjavik Keflavik Airport rental car and discover Reykjavik and beyond with your own wheels. Ice Home 4x4, FairCar and Flizzr are top providers you can book with here.
To get the lowest price, book your vehicle from Reykjavik Keflavik Airport about four weeks ahead.

When to fly to Reykjavik Keflavik Airport (KEF)

August is the busiest month for flights from London Heathrow Airport to Reykjavik Keflavik Airport. To skip the crowds, head to Reykjavik in March.
When booking your flight from London Heathrow Airport to Reykjavik Keflavik Airport, think about the kind of weather you enjoy. July is the warmest month in Reykjavik, with temperatures ranging from 8ºC (46ºF) to 15ºC (59ºF).
For cooler conditions, look for a cheap ticket from LHR to KEF in December. Average temperatures are between -6ºC (21ºF) and 4ºC (39ºF) then.

Explore more of Iceland

Kópavogur is just one of the many places in Iceland waiting to be discovered once you've taken in the sights of Reykjavik. Around 5 kilometres away to the south, its best attractions include Heidmörk Nature Reserve, Peningagja-Nikulasargja Gorge and Digraneskirkja.
Hafnarfjörður is another favourite destination in Iceland and is around 10 kilometres south of Reykjavik. No trip is complete without a visit to Vidistadatun Sculpture Park, Ytri Tunga Beach and Helgafell.