฿3,435 Cheap Flights from London (LHR) to Reykjavik (KEF)

View ฿3,435 flight on Sat, 8 Nov 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿3,435 for one-way flights and ฿6,485 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sat, 6 Dec - Tue, 9 Dec
LHR
London
KEF
Reykjavik
฿6,485 Return, found 4 days ago
฿6,485
Return
found 4 days ago
Select Icelandair flight, departing Sat, 6 Dec from London to Reykjavik, returning Tue, 9 Dec, priced at ฿6,485 found 4 days ago
Icelandair
Sat, 6 Dec - Tue, 9 Dec
LHR
London
KEF
Reykjavik
฿6,700 Return, found 4 days ago
฿6,700
Return
found 4 days ago
Select Icelandair flight, departing Sat, 6 Dec from London to Reykjavik, returning Tue, 9 Dec, priced at ฿6,700 found 4 days ago
Icelandair
Fri, 5 Dec - Wed, 10 Dec
LHR
London
KEF
Reykjavik
฿6,735 Return, found 6 hours ago
฿6,735
Return
found 6 hours ago
Select Icelandair flight, departing Fri, 5 Dec from London to Reykjavik, returning Wed, 10 Dec, priced at ฿6,735 found 6 hours ago
Icelandair
Fri, 16 Jan - Fri, 30 Jan
LHR
London
KEF
Reykjavik
฿6,920 Return, found 4 days ago
฿6,920
Return
found 4 days ago
Select Icelandair flight, departing Fri, 16 Jan from London to Reykjavik, returning Fri, 30 Jan, priced at ฿6,920 found 4 days ago
Icelandair
Wed, 25 Feb - Wed, 4 Mar
LHR
London
KEF
Reykjavik
฿6,930 Return, found 5 days ago
฿6,930
Return
found 5 days ago
Select Icelandair flight, departing Wed, 25 Feb from London to Reykjavik, returning Wed, 4 Mar, priced at ฿6,930 found 5 days ago
Icelandair
Tue, 18 Nov - Fri, 21 Nov
LHR
London
KEF
Reykjavik
฿6,955 Return, found 16 hours ago
฿6,955
Return
found 16 hours ago
Select Icelandair flight, departing Tue, 18 Nov from London to Reykjavik, returning Fri, 21 Nov, priced at ฿6,955 found 16 hours ago
British Airways
Thu, 15 Jan - Fri, 23 Jan
LHR
London
KEF
Reykjavik
฿7,310 Return, found 4 days ago
฿7,310
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Jan from London to Reykjavik, returning Fri, 23 Jan, priced at ฿7,310 found 4 days ago
Scandinavian Airlines
Wed, 25 Feb - Fri, 27 Feb
LHR
London
KEF
Reykjavik
฿7,820 Return, found 5 days ago
฿7,820
Return
found 5 days ago
Select Scandinavian Airlines flight, departing Wed, 25 Feb from London to Reykjavik, returning Fri, 27 Feb, priced at ฿7,820 found 5 days ago
KLM
Thu, 22 Jan - Wed, 28 Jan
LHR
London
KEF
Reykjavik
฿9,885 Return, found 2 days ago
฿9,885
Return
found 2 days ago
Select KLM flight, departing Thu, 22 Jan from London to Reykjavik, returning Wed, 28 Jan, priced at ฿9,885 found 2 days ago
Lufthansa
Fri, 16 Jan - Fri, 30 Jan
LHR
London
KEF
Reykjavik
฿10,460 Return, found 4 days ago
฿10,460
Return
found 4 days ago
Select Lufthansa flight, departing Fri, 16 Jan from London to Reykjavik, returning Fri, 30 Jan, priced at ฿10,460 found 4 days ago

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

January is typically the cheapest month to fly

From ฿4,223 - ฿8,389 per traveller.
Flight from London to Reykjavik route information
Origin airport
Heathrow
Destination airport
Keflavik Intl.
Airlines serving
Air France, Austrian Airlines, British Airways, Icelandair, KLM, Lufthansa, Swiss International Air Lines
Return price
฿6,485
Distance
1885 km
Average flight time
2 hours 8 mins

Perfect flights from London to Reykjavik

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Reykjavik. 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 Heathrow to Keflavik Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿3,435 and roundtrip prices from ฿6,485. 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 Keflavik Intl. 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 Reykjavik.

Frequently asked questions

How much is a flight from Heathrow Airport to Keflavik Intl. Airport (KEF)?
Round-trip flights from Heathrow Airport to KEF start from ฿6,485. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Reykjavík–Keflavík Airport?
Each air carrier has its own set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from London Heathrow to Keflavik Intl. Airport (KEF) 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 London Heathrow to Reykjavík–Keflavík Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport to Reykjavík–Keflavík Airport?
You'll be in the air for a while, as the flight distance between Hounslow and Reykjanesbær is 1,900 kilometres. Put together a playlist of your favourite tunes before you leave home to keep yourself entertained during your journey.
Which airlines fly direct from Heathrow Airport to KEF?
A leading airline that services the route from LHR to Keflavik Intl. Airport (KEF) is Icelandair (FI). It offers 60 flights every month. British Airways (BA) is also worth considering. It offers 30 flights every month. Between these two airlines, you'll be able to find a good deal from Hounslow to Reykjanesbær.
Are London Heathrow to KEF flight tickets cheaper when they're purchased at the last minute?
It is possible to score great last-minute deals from LHR to Reykjavík–Keflavík Airport, but it's also possible to miss out altogether! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares air carrier prices and updates flight deals often, so you can be certain you're always seeing the latest offers.

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