$93 Cheap Flights from Reykjavik (KEF) to London (LHR)

View $93 flight on Tue, Dec 16, 2025Opens in a new window

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

Cheap Flights from Reykjavik to London (KEF-LHR)

Prices were available within the past 7 days and start at $93 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Feb 28 - Mon, Mar 9
KEF
Reykjavik
LHR
London
$179 Roundtrip, found 5 days ago
$179
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Feb 28 from Reykjavik to London, returning Mon, Mar 9, priced at $179 found 5 days ago
British Airways
Thu, Dec 11 - Tue, Dec 16
KEF
Reykjavik
LHR
London
$194 Roundtrip, found 19 hours ago
$194
Roundtrip
found 19 hours ago
Select British Airways flight, departing Thu, Dec 11 from Reykjavik to London, returning Tue, Dec 16, priced at $194 found 19 hours ago
British Airways
Thu, Nov 27 - Sat, Nov 29
KEF
Reykjavik
LHR
London
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Nov 27 from Reykjavik to London, returning Sat, Nov 29, priced at $197 found 2 days ago
British Airways
Thu, Nov 20 - Mon, Nov 24
KEF
Reykjavik
LHR
London
$200 Roundtrip, found 4 days ago
$200
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Nov 20 from Reykjavik to London, returning Mon, Nov 24, priced at $200 found 4 days ago
British Airways
Wed, Nov 12 - Sun, Nov 16
KEF
Reykjavik
LHR
London
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Nov 12 from Reykjavik to London, returning Sun, Nov 16, priced at $201 found 1 day ago
British Airways
Wed, Nov 12 - Sun, Nov 16
KEF
Reykjavik
LHR
London
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Nov 12 from Reykjavik to London, returning Sun, Nov 16, priced at $203 found 1 day ago
Scandinavian Airlines
Thu, Nov 6 - Wed, Nov 12
KEF
Reykjavik
LHR
London
$208 Roundtrip, found 5 days ago
$208
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Thu, Nov 6 from Reykjavik to London, returning Wed, Nov 12, priced at $208 found 5 days ago
Lufthansa
Tue, Nov 18 - Thu, Nov 27
KEF
Reykjavik
LHR
London
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Nov 18 from Reykjavik to London, returning Thu, Nov 27, priced at $268 found 2 days ago
Icelandair
Tue, Jan 6 - Sat, Jan 10
KEF
Reykjavik
LHR
London
$284 Roundtrip, found 2 hours ago
$284
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Tue, Jan 6 from Reykjavik to London, returning Sat, Jan 10, priced at $284 found 2 hours ago
Austrian Airlines
Sat, Mar 7 - Fri, Mar 20
KEF
Reykjavik
LHR
London
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Sat, Mar 7 from Reykjavik to London, returning Fri, Mar 20, priced at $302 found 1 day ago

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

March is typically the cheapest month to fly

From $155 - $426 per traveler.

Graph displaying average flight prices per month

Alternative airports near London

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

Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $542
LGW
Gatwick
Average driving time to city center52 min
Flights from $542
Flights from Reykjavik (KEF) to London (LHR)
Origin airport
Keflavik Intl.
Destination airport
Heathrow
Airlines serving
Air France, Austrian Airlines, British Airways, Eurowings, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Roundtrip price
$178
Distance
1178 mi
Average flight time
4 hours 13 mins

Reykjavik to London Flights

The cheapest times to fly from Reykjavik to London

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 Reykjavik to London are during the month of February. You can find some of the cheapest flights from Reykjavik to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Reykjavik to London

Sunday is one of the best days to book for cheap flights from Reykjavik to London: 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 Reykjavik to London

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 Reykjavik to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $93 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 Reykjavik to London 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 Reykjavik to London 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 Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) cost?
Lock in a cheap one-way flight from $93 or cheap return flight from $179 from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
February is the least expensive month to fly from KEF to LHR. Traveling during an off-peak travel window is often the key to better flight prices.
Which airlines fly direct from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
You can fly directly from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) on an Icelandair flight.
What is the cheapest airline that flies from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
British Airways and Icelandair are some popular airlines offering reasonable fares. Don't forget that flight prices from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) can change depending on the time of year, demand and how early you book. With Expedia's filter tool, you can easily find a KEF to LHR flight that suits your plans and budget.
How many flights per day from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
Each day, an average of 3 direct flights operate from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR). Pick the departure time that fits your schedule best.
What are the most popular departure times for flights from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
The 7 AM departures from KEF to LHR are the busiest. Greater demand means you'll likely pay more for these departures. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from KEF to LHR?
Travel on a Friday if you're searching for the best choice of flights from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR).
What is the earliest flight from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
Take the earliest flight at around 7:35AM UTC+0, heading out of Keflavik Intl. Airport (KEF). You'll be flying for about 3h 15m, coming in to land at Heathrow Airport (LHR) at approximately 10:50AM UTC+0.
How long does it take to fly from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
The average flight duration from KEF to LHR is 3 hours and 12 minutes, covering a distance of 1,200 mi.
What is the best time to fly from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
To avoid potential delays on the Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) route, aim to fly before 3 PM. Departures after this hour are 22% more likely to be canceled.**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 London from Keflavik Intl. Airport (KEF)?
Touch down at one of these London airports following your direct flight from Keflavik Intl. Airport (KEF):

  • Heathrow Airport (LHR)
  • Gatwick Airport (LGW)
  • Stansted Airport (STN)

Is it cheaper to buy a plane ticket from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR) last-minute?
Last-minute bookings from KEF to LHR are generally more expensive. For the lowest rates, start searching for flights early. That being said, if you're flexible with your travel plans, you may score a cheap fare just before your departure.
Is it cheaper to book a KEF to LHR flight and hotel package?
You'll typically save money by booking a KEF to LHR flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR)?
Generally, it's possible to reschedule or cancel your KEF to LHR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible 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.