฿3,290 Cheap Flights from London (LHR) to Reykjavik (KEF)

View ฿3,290 flight on Fri, 9 Jan 2026Opens 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 ฿3,290 for one-way flights and ฿4,640 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 4 Dec - Sun, 7 Dec
LHR
London
KEF
Reykjavik
฿4,640 Return, found 2 days ago
฿4,640
Return
found 2 days ago
Select Icelandair flight, departing Thu, 4 Dec from London to Reykjavik, returning Sun, 7 Dec, priced at ฿4,640 found 2 days ago
Icelandair
Wed, 18 Mar - Wed, 25 Mar
LHR
London
KEF
Reykjavik
฿5,205 Return, found 1 day ago
฿5,205
Return
found 1 day ago
Select Icelandair flight, departing Wed, 18 Mar from London to Reykjavik, returning Wed, 25 Mar, priced at ฿5,205 found 1 day ago
Icelandair
Mon, 20 Apr - Fri, 24 Apr
LHR
London
KEF
Reykjavik
฿5,280 Return, found 5 hours ago
฿5,280
Return
found 5 hours ago
Select Icelandair flight, departing Mon, 20 Apr from London to Reykjavik, returning Fri, 24 Apr, priced at ฿5,280 found 5 hours ago
Icelandair
Wed, 15 Apr - Wed, 22 Apr
LHR
London
KEF
Reykjavik
฿5,290 Return, found 1 day ago
฿5,290
Return
found 1 day ago
Select Icelandair flight, departing Wed, 15 Apr from London to Reykjavik, returning Wed, 22 Apr, priced at ฿5,290 found 1 day ago
Icelandair
Mon, 5 Jan - Fri, 9 Jan
LHR
London
KEF
Reykjavik
฿5,405 Return, found 11 hours ago
฿5,405
Return
found 11 hours ago
Select Icelandair flight, departing Mon, 5 Jan from London to Reykjavik, returning Fri, 9 Jan, priced at ฿5,405 found 11 hours ago
Icelandair
Wed, 18 Mar - Wed, 25 Mar
LHR
London
KEF
Reykjavik
฿5,420 Return, found 1 day ago
฿5,420
Return
found 1 day ago
Select Icelandair flight, departing Wed, 18 Mar from London to Reykjavik, returning Wed, 25 Mar, priced at ฿5,420 found 1 day ago
British Airways
Mon, 1 Dec - Fri, 12 Dec
LHR
London
KEF
Reykjavik
฿6,850 Return, found 12 hours ago
฿6,850
Return
found 12 hours ago
Select British Airways flight, departing Mon, 1 Dec from London to Reykjavik, returning Fri, 12 Dec, priced at ฿6,850 found 12 hours ago
KLM
Wed, 18 Mar - Wed, 25 Mar
LHR
London
KEF
Reykjavik
฿9,645 Return, found 1 day ago
฿9,645
Return
found 1 day ago
Select KLM flight, departing Wed, 18 Mar from London to Reykjavik, returning Wed, 25 Mar, priced at ฿9,645 found 1 day ago
Lufthansa
Sat, 11 Apr - Thu, 16 Apr
LHR
London
KEF
Reykjavik
฿11,925 Return, found 5 days ago
฿11,925
Return
found 5 days ago
Select Lufthansa flight, departing Sat, 11 Apr from London to Reykjavik, returning Thu, 16 Apr, priced at ฿11,925 found 5 days ago
Austrian Airlines
Thu, 19 Feb - Sat, 28 Feb
LHR
London
KEF
Reykjavik
฿14,820 Return, found 3 days ago
฿14,820
Return
found 3 days ago
Select Austrian Airlines flight, departing Thu, 19 Feb from London to Reykjavik, returning Sat, 28 Feb, priced at ฿14,820 found 3 days ago

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

January is typically the cheapest month to fly

From ฿4,229 - ฿9,599 per traveller.
Flight from London to Reykjavik route information
Origin airport
Heathrow
Destination airport
Keflavik Intl.
Airlines serving
British Airways, Icelandair, KLM, Lufthansa, Swiss International Air Lines
Return price
฿4,640
Distance
1885 km
Average flight time
3 hours 20 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 ฿3,290 and roundtrip prices from ฿4,640. 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 ฿4,640. 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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