$107 Cheap Flights from London (LHR) to Reykjavik (KEF)

View $107 flight on Sun, Feb 8, 2026Opens in a new window

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

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Cheap Flights from London to Reykjavik (LHR-KEF)

Prices were available within the past 7 days and start at $107 for one-way flights and $185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, Feb 8 - Fri, Feb 13
LHR
London
KEF
Reykjavik
$185 Roundtrip, found 4 hours ago
$185
Roundtrip
found 4 hours ago
Select British Airways flight, departing Sun, Feb 8 from London to Reykjavik, returning Fri, Feb 13, priced at $185 found 4 hours ago
British Airways
Fri, Jan 9 - Fri, Jan 16
LHR
London
KEF
Reykjavik
$187 Roundtrip, found 11 hours ago
$187
Roundtrip
found 11 hours ago
Select British Airways flight, departing Fri, Jan 9 from London to Reykjavik, returning Fri, Jan 16, priced at $187 found 11 hours ago
Icelandair
Sun, Mar 15 - Wed, Mar 25
LHR
London
KEF
Reykjavik
$189 Roundtrip, found 6 days ago
$189
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sun, Mar 15 from London to Reykjavik, returning Wed, Mar 25, priced at $189 found 6 days ago
British Airways
Fri, Jan 2 - Fri, Jan 9
LHR
London
KEF
Reykjavik
$189 Roundtrip, found 1 hour ago
$189
Roundtrip
found 1 hour ago
Select British Airways flight, departing Fri, Jan 2 from London to Reykjavik, returning Fri, Jan 9, priced at $189 found 1 hour ago
British Airways
Sun, Mar 8 - Fri, Mar 13
LHR
London
KEF
Reykjavik
$191 Roundtrip, found 3 hours ago
$191
Roundtrip
found 3 hours ago
Select British Airways flight, departing Sun, Mar 8 from London to Reykjavik, returning Fri, Mar 13, priced at $191 found 3 hours ago
British Airways
Sat, Nov 22 - Fri, Nov 28
LHR
London
KEF
Reykjavik
$192 Roundtrip, found 20 hours ago
$192
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Nov 22 from London to Reykjavik, returning Fri, Nov 28, priced at $192 found 20 hours ago
British Airways
Tue, Jan 20 - Fri, Jan 23
LHR
London
KEF
Reykjavik
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Jan 20 from London to Reykjavik, returning Fri, Jan 23, priced at $193 found 5 days ago
Scandinavian Airlines
Wed, Nov 19 - Mon, Nov 24
LHR
London
KEF
Reykjavik
$230 Roundtrip, found 2 hours ago
$230
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Wed, Nov 19 from London to Reykjavik, returning Mon, Nov 24, priced at $230 found 2 hours ago
Lufthansa
Sat, Nov 15 - Tue, Nov 18
LHR
London
KEF
Reykjavik
$277 Roundtrip, found 1 hour ago
$277
Roundtrip
found 1 hour ago
Select Lufthansa flight, departing Sat, Nov 15 from London to Reykjavik, returning Tue, Nov 18, priced at $277 found 1 hour ago
Austrian Airlines
Tue, Oct 7 - Sat, Oct 11
LHR
London
KEF
Reykjavik
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Tue, Oct 7 from London to Reykjavik, returning Sat, Oct 11, priced at $308 found 1 day ago

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

January is typically the cheapest month to fly

From $130 - $295 per traveler.

Graph displaying average flight prices per month

Alternative airports near Reykjavik

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

Select flight to Keflavik Intl. KEF. Cheapest option available. Average driving time to city center is 45 minutes. Flights from $624
KEF
Keflavik Intl.
Cheapest
Average driving time to city center45 min
Flights from $624
Flights from London (LHR) to Reykjavik (KEF)
Origin airport
Heathrow
Destination airport
Keflavik Intl.
Airlines serving
Air Baltic, Air France, Austrian Airlines, British Airways, Eurowings, Iberia, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Roundtrip price
$185
Distance
1178 mi
Average flight time
2 hours 8 mins

London to Reykjavik Flights

The cheapest times to fly from London to Reykjavik

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Reykjavik are during the month of February. You can find some of the cheapest flights from London to Reykjavik with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Reykjavik

Sunday is one of the best days to book for cheap flights from London to Reykjavik: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Reykjavik

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Reykjavik in 2025. You can also book with separate airlines for your outbound and return journeys, from $107 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Reykjavik flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Reykjavik airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) cost?
You can find affordable return tickets from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) starting at $219. Book a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Icelandair flight leaving LHR on July 25 2025 and touching down at KEF. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LHR to KEF?
The cheapest flights from LHR to KEF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Take a direct flight with Icelandair and travel straight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF).
What is the cheapest airline that flies from LHR to KEF?
Journey from LHR to KEF with British Airways. This carrier currently has the lowest one-way fare for this route, starting from $129. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on September 10 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
With an average of 3 direct flights departing from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) daily, you'll be jetting off in no time.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
More passengers fly between LHR and KEF at 12 PM than at any other point in the day. Rather skip the crowds? Consider flying outside peak hours and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from LHR to KEF?
Depart on a Friday if you're searching for the best selection of flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF).
What is the earliest flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
The earliest flight departing from Heathrow Airport (LHR) is at around 7:25AM UTC+0. Hop on this flight and you'll arrive at Keflavik Intl. Airport (KEF) at approximately 10:45AM UTC+0. The total time in the air is 3h 20m.
How long does it take to fly from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Typically, it takes 3 hours and 16 minutes to cover the 1,200 mi from LHR to KEF.
What is the best time to fly from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
To arrive at Keflavik Intl. Airport (KEF) on time, opt for a flight that leaves from Heathrow Airport (LHR) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Reykjavik from Heathrow Airport (LHR)?
Keflavik Intl. Airport (KEF) is the only airport in Reykjavik with direct flights from Heathrow Airport (LHR). Consider your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) last-minute?
Holding off until just before your trip to book your flight from LHR to KEF often results in higher prices. While it's possible to find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of landing a bargain.
Is it cheaper to book a LHR to KEF flight and hotel package?
You'll typically save money by securing a LHR to KEF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your preferred flights and accommodations, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Typically, it's possible to cancel or reschedule your LHR to KEF flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.