€84 Cheap Flights Reykjavik to London (KEF-LHR)

View €84 flight on Fri, 16 Jan 2026Opens in a new window

Popular airlines from Reykjavik–Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)

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Cheap flights from Reykjavik to London (KEF-LHR)

Prices were available within the past 7 days and start at €84 for one-way flights and €155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, 23 Jan - Fri, 30 Jan
KEF
Reykjavik
LHR
London
€155 Return, found 10 hours ago
€155
Return
found 10 hours ago
Select British Airways flight, departing Fri, 23 Jan from Reykjavik to London, returning Fri, 30 Jan, priced at €155 found 10 hours ago
British Airways
Fri, 23 Jan - Fri, 30 Jan
KEF
Reykjavik
LHR
London
€165 Return, found 10 hours ago
€165
Return
found 10 hours ago
Select British Airways flight, departing Fri, 23 Jan from Reykjavik to London, returning Fri, 30 Jan, priced at €165 found 10 hours ago
British Airways
Sat, 20 Dec - Sun, 4 Jan
KEF
Reykjavik
LHR
London
€167 Return, found 5 hours ago
€167
Return
found 5 hours ago
Select British Airways flight, departing Sat, 20 Dec from Reykjavik to London, returning Sun, 4 Jan, priced at €167 found 5 hours ago
British Airways
Fri, 16 Jan - Sun, 25 Jan
KEF
Reykjavik
LHR
London
€169 Return, just found
€169
Return
just found
Select British Airways flight, departing Fri, 16 Jan from Reykjavik to London, returning Sun, 25 Jan, priced at €169 just found
British Airways
Fri, 16 Jan - Sun, 25 Jan
KEF
Reykjavik
LHR
London
€173 Return, just found
€173
Return
just found
Select British Airways flight, departing Fri, 16 Jan from Reykjavik to London, returning Sun, 25 Jan, priced at €173 just found
British Airways
Fri, 5 Dec - Sun, 7 Dec
KEF
Reykjavik
LHR
London
€176 Return, found 6 days ago
€176
Return
found 6 days ago
Select British Airways flight, departing Fri, 5 Dec from Reykjavik to London, returning Sun, 7 Dec, priced at €176 found 6 days ago
Scandinavian Airlines
Mon, 17 Nov - Wed, 3 Dec
KEF
Reykjavik
LHR
London
€180 Return, found 2 days ago
€180
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Mon, 17 Nov from Reykjavik to London, returning Wed, 3 Dec, priced at €180 found 2 days ago
Icelandair
Wed, 12 Nov - Tue, 25 Nov
KEF
Reykjavik
LHR
London
€215 Return, found 2 days ago
€215
Return
found 2 days ago
Select Icelandair flight, departing Wed, 12 Nov from Reykjavik to London, returning Tue, 25 Nov, priced at €215 found 2 days ago
Lufthansa
Fri, 23 Jan - Fri, 30 Jan
KEF
Reykjavik
LHR
London
€234 Return, found 10 hours ago
€234
Return
found 10 hours ago
Select Lufthansa flight, departing Fri, 23 Jan from Reykjavik to London, returning Fri, 30 Jan, priced at €234 found 10 hours ago
KLM
Fri, 16 Jan - Sun, 25 Jan
KEF
Reykjavik
LHR
London
€253 Return, just found
€253
Return
just found
Select KLM flight, departing Fri, 16 Jan from Reykjavik to London, returning Sun, 25 Jan, priced at €253 just found

Find the cheapest month to fly from Reykjavik (KEF) to London (LHR)

March is typically the cheapest month to fly

From €132 - €336 per traveller.

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from €312
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from €312
Reykjavik to London route information
Origin airport
Keflavik Intl.
Destination airport
Heathrow
Airlines serving
British Airways, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Return price
€155
Distance
1885 km
Average flight time
4 hours 13 mins

Perfect flights from Reykjavik to London

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Picture yourself strolling through the streets of London, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Keflavik Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from €84 and roundtrip prices from €155. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore London and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your KEF to LHR travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from Keflavik Intl. Airport (KEF) to Heathrow Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from KEF to London Heathrow was €155. Fares this good don't last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Reykjavík–Keflavík Airport to LHR?
Most flights can be cancelled online, but whether or not you incur a fee differs between airlines. If you do have to cancel your break, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Keflavik Intl. Airport (KEF) to Heathrow Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Reykjavík–Keflavík Airport to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from KEF to LHR?
It's around 1,900 kilometres from Reykjavík–Keflavík Airport to LHR, so you'll be flying for a while. Keep yourself occupied by packing things like playing cards (if you're travelling with friends) or a thrilling novel.
Which airlines fly direct from Reykjavík–Keflavík Airport to LHR?
Icelandair (FI) is one of the preferred choices for many travellers flying between Keflavik Intl. Airport (KEF) and Heathrow Airport (LHR). Take your pick of the 60 flights it offers on this route each month. After some more options? Check out the airfares with British Airways (BA). This carrier offers 30 fights monthly between these destinations.
Are Reykjavík–Keflavík Airport to LHR flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so not always. While last-minute flight deals between KEF and Heathrow Airport (LHR) are possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some airlines advertise their prices up to a year before the departure date. Expedia is continuously updating the best bargains around, so keep checking back and be ready to grab your seat when the price is right.

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