฿3,905 Cheap Flights from Reykjavik (KEF) to London (LHR)

View ฿3,905 flight on Wed, 4 Mar 2026Opens in a new window

Popular airlines from Keflavik International Airport (KEF) to Heathrow Airport (LHR)

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

Prices were available within the past 7 days and start at ฿3,905 for one-way flights and ฿9,475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Thu, 13 Nov - Mon, 17 Nov
KEF
Reykjavik
LHR
London
฿9,475 Return, found 6 days ago
฿9,475
Return
found 6 days ago
Select British Airways flight, departing Thu, 13 Nov from Reykjavik to London, returning Mon, 17 Nov, priced at ฿9,475 found 6 days ago
Icelandair
Wed, 26 Nov - Sat, 13 Dec
KEF
Reykjavik
LHR
London
฿9,660 Return, found 6 days ago
฿9,660
Return
found 6 days ago
Select Icelandair flight, departing Wed, 26 Nov from Reykjavik to London, returning Sat, 13 Dec, priced at ฿9,660 found 6 days ago
Icelandair
Wed, 26 Nov - Sat, 13 Dec
KEF
Reykjavik
LHR
London
฿9,995 Return, found 6 days ago
฿9,995
Return
found 6 days ago
Select Icelandair flight, departing Wed, 26 Nov from Reykjavik to London, returning Sat, 13 Dec, priced at ฿9,995 found 6 days ago
KLM
Thu, 13 Nov - Mon, 17 Nov
KEF
Reykjavik
LHR
London
฿10,105 Return, found 6 days ago
฿10,105
Return
found 6 days ago
Select KLM flight, departing Thu, 13 Nov from Reykjavik to London, returning Mon, 17 Nov, priced at ฿10,105 found 6 days ago
Icelandair
Wed, 26 Nov - Sat, 13 Dec
KEF
Reykjavik
LHR
London
฿10,385 Return, found 6 days ago
฿10,385
Return
found 6 days ago
Select Icelandair flight, departing Wed, 26 Nov from Reykjavik to London, returning Sat, 13 Dec, priced at ฿10,385 found 6 days ago
Icelandair
Wed, 26 Nov - Sat, 13 Dec
KEF
Reykjavik
LHR
London
฿10,720 Return, found 6 days ago
฿10,720
Return
found 6 days ago
Select Icelandair flight, departing Wed, 26 Nov from Reykjavik to London, returning Sat, 13 Dec, priced at ฿10,720 found 6 days ago
Icelandair
Tue, 14 Jul - Mon, 20 Jul
KEF
Reykjavik
LHR
London
฿11,390 Return, found 1 hour ago
฿11,390
Return
found 1 hour ago
Select Icelandair flight, departing Tue, 14 Jul from Reykjavik to London, returning Mon, 20 Jul, priced at ฿11,390 found 1 hour ago
Icelandair
Thu, 13 Nov - Mon, 17 Nov
KEF
Reykjavik
LHR
London
฿12,055 Return, found 6 days ago
฿12,055
Return
found 6 days ago
Select Icelandair flight, departing Thu, 13 Nov from Reykjavik to London, returning Mon, 17 Nov, priced at ฿12,055 found 6 days ago
Lufthansa
Thu, 13 Nov - Mon, 17 Nov
KEF
Reykjavik
LHR
London
฿13,685 Return, found 6 days ago
฿13,685
Return
found 6 days ago
Select Lufthansa flight, departing Thu, 13 Nov from Reykjavik to London, returning Mon, 17 Nov, priced at ฿13,685 found 6 days ago
Swiss International Air Lines
Tue, 14 Jul - Mon, 20 Jul
KEF
Reykjavik
LHR
London
฿20,730 Return, found 1 hour ago
฿20,730
Return
found 1 hour ago
Select Swiss International Air Lines flight, departing Tue, 14 Jul from Reykjavik to London, returning Mon, 20 Jul, priced at ฿20,730 found 1 hour ago

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

March is typically the cheapest month to fly

From ฿5,037 - ฿12,781 per traveller.
Flight from Reykjavik to London route information
Origin airport
Keflavik Intl.
Destination airport
Heathrow
Airlines serving
Air France, British Airways, Icelandair, KLM, Lufthansa, Swiss International Air Lines
Return price
฿9,475
Distance
1885 km
Average flight time
4 hours 13 mins

Perfect flights from Reykjavik to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Reykjavik to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , 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 ฿3,905 and roundtrip prices from ฿9,475. 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 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 to 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 ฿9,475. 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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