Cheap Flights from Reykjavik Keflavik to London Heathrow from $251

Compare Reykjavik Keflavik to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Reykjavik Keflavik to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Reykjavik Keflavik to London Heathrow? Find the lowest prices on one-way and return tickets right here.

London.$251 per passenger.Departing Fri, 16 Jan, returning Tue, 20 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 16 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 20 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $251, select.

London.$262 per passenger.Departing Fri, 6 Mar, returning Mon, 9 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 6 Mar, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 9 Mar, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $262, select.

London.$263 per passenger.Departing Sun, 8 Feb, returning Thu, 19 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Sun, 8 Feb, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Thu, 19 Feb, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $263, select.

London.$284 per passenger.Departing Fri, 27 Feb, returning Fri, 6 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 27 Feb, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 6 Mar, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $284, select.

London.$284 per passenger.Departing Fri, 21 Nov, returning Sat, 22 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 21 Nov, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 22 Nov, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $284, select.

London.$287 per passenger.Departing Fri, 26 Dec, returning Wed, 31 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 26 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Wed, 31 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $287, select.

London.$291 per passenger.Departing Fri, 26 Dec, returning Fri, 2 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Fri, 26 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 2 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $291, select.

London.$312 per passenger.Departing Sat, 3 May, returning Fri, 9 May.Return flight with British Airways.Outbound direct flight with British Airways departs from Reykjavik Keflavik on Sat, 3 May, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 9 May, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $312, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to London Heathrow flights are currently cheapest in January.

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Direct flights from Reykjavik Keflavik to London Heathrow

Reykjavik Keflavik to London Heathrow: Alternative routes

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

Reykjavik to London: Flight information

The things to know before you go.

Cheapest flight found	$251
Cheapest month to fly	January
Average flight time	3 hrs, 7 mins
Most popular airline	Emirates
Average flights per week	89

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

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

The best price we found for a return flight from Reykjavik Keflavik to London Heathrow is $251. 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 Reykjavik Keflavik to London Heathrow?

3 hours and 7 minutes is the average flight time from Reykjavik Keflavik to London Heathrow.

Which airlines fly direct from Reykjavik Keflavik to London Heathrow?

Emirates, Icelandair and British Airways fly direct from Reykjavik Keflavik to London Heathrow.

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

As of April 2025, there are 89 flights per week flying from Reykjavik Keflavik to London Heathrow.

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

The cheapest month to fly from Reykjavik Keflavik to London Heathrow is usually April 2025.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to London Heathrow Airport on Friday, 16 January 2026.

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

Yes – the average flight time is 3 hours and 7 minutes.

How can I find the best flight deal to London Heathrow?

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 London Heathrow 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 London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

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

Currently, British Airways offers the cheapest flight tickets to London Heathrow.

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

Jump on a direct flight from Keflavik International Airport to London Heathrow Airport and you'll be in the air for an average of 3 hours 10 minutes.
Reykjavik and London follow the same timezone, UTC+0.
Flights from KEF to LHR start from 07:40 — the earliest with Icelandair. The latest departure is at 18:30 with British Airways. Overall, you can take your pick of 24 weekly Keflavik International Airport to London Heathrow Airport flights.
To ensure you catch your KEF to LHR flight, leave enough time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general rule.
Travelling during a peak month such as July? School holidays and other popular seasons can result in longer queues and delays at airport checkpoints. Play it safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.
British Airways has direct flights from Keflavik International Airport to London Heathrow Airport. Book with this popular airline, then get ready to see the sights in London — and maybe even more of United Kingdom if you have time.
The majority of travellers choose to fly with British Airways on this route.
With 74.36% of its services arriving as scheduled, Icelandair is the most punctual carrier operating KEF to LHR flights.
If you'd like to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Keflavik International Airport to London Heathrow Airport. These are the most popular stopovers between KEF and LHR:
- Newcastle International Airport
- Glasgow International Airport
- Dublin Airport

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

The lowest price we've seen for a one-way Keflavik International Airport to London Heathrow Airport flight is $109. A return ticket is currently $251. Depending on the availability and when you book, these fares could change.
Book two months before you travel. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from KEF to LHR.
January is the cheapest month for flights from Keflavik International Airport to London Heathrow Airport. If you'd like to fly at a different time of year, the 'Whole month' tool will show you the lowest airfares for every month.
Getting your hands on cheap flights from KEF to LHR is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as a lower fare pops up.
Tailor your flights using filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Keflavik International Airport to London Heathrow Airport.

Handy information about Keflavik International Airport (KEF)

When it comes to Keflavik International Airport's on-time performance, data shows 66.96% of flights arrive within the scheduled timeframe.
To reach Keflavik International Airport from central Reykjavik, it'll take about 50 minutes by car. This depends on traffic though. It's approximately 48 kilometres from the airport to the city centre.
Planning to catch public transport? You can expect a journey time of around 1 hour 15 minutes.
Booked an early flight from Keflavik International Airport to London Heathrow Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by picking one of these stays close to KEF:

Arriving at London Heathrow Airport (LHR)

The last thing you want is a long trip to your hotel if you're landing late on a Keflavik International Airport to London Heathrow Airport flight. Reserve one of these accommodation options near LHR instead:
Travel at your own speed with a London Heathrow Airport rental car. Pick up your wheels from Surprice, U-Save or Green Motion and find adventure across London and beyond.
Lock in the best possible rate by reserving your vehicle from London Heathrow Airport about one week before your trip.

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport to central London has a drive time of around 55 minutes. It's approximately 31 kilometres away.
Travelling to the centre by public transport will take you roughly 1 hour.

When to fly to London Heathrow Airport (LHR)

The quietest month for a flight from Keflavik International Airport to London Heathrow Airport is February, while July is the busiest. Choose the best time to go to London based on whether you prefer a faster pace or a more relaxed vibe.
Lock in your flight from Keflavik International Airport to London Heathrow Airport for July if you'd like to explore London during its warmest month. Expect temperatures of between 11ºC and 26ºC.
Look for cheap tickets from KEF to LHR in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 0ºC and 9ºC on average.

Explore more of United Kingdom

You've visited London, now it's time to discover more of United Kingdom. Journey around 161 kilometres north-west to Birmingham to tick off its leading sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you'll have a packed itinerary ahead.
If you're ready to explore another well-known destination in United Kingdom, head for Bristol, about 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are key reasons to visit.