$117 Cheap Flights from London (LHR) to Reykjavik (KEF)
Popular airlines from Heathrow Airport (LHR) to Reykjavik–Keflavik Intl. Airport (KEF)
SASSAS
IcelandairIcelandair
British AirwaysBritish Airways
KLMKLM
LufthansaLufthansa
FinnairFinnair
Austrian AirlinesAustrian Airlines
Cheap Flights from London to Reykjavik (LHR-KEF)
Alternative airports near Reykjavik
Prices were available within the past 7 days. Prices and availability are subject to change.
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London (LHR) to Reykjavik (KEF) at a glance
Travel from London (LHR) to Reykjavik (KEF) with a variety of airlines on this international short-haul route. Whether you prefer full-service or budget carriers, you can easily compare options to discover the itinerary that aligns with your budget, schedule, and travel plans while you explore Reykjavik's renowned attractions and neighborhoods. Get all the essential details for flights from Heathrow Airport (LHR) to Keflavik International Airport (KEF).
- Fastest flight duration: around 3h 15m non-stop
- Route distance: roughly 1,200 miles (1,930 km)
- Flights per week: around 10 departures on average
- Typical fares (one-way): economy tickets often range from $100–$530, depending on seasonality and how far ahead you book
Flights from Heathrow Airport (LHR) to Keflavik International Airport (KEF)
Based on the latest traveler bookings, here are the top airlines favored for flights from London to Reykjavik, featuring both non-stop and one-stop options. Common layovers include Gardermoen Airport (OSL), which has an approximate 3-hour 15-minute layover, and Kastrup Airport (CPH), with a shorter layover of around 55 minutes. This variety allows you to consider factors such as price, total travel time, and cabin class to create your ideal itinerary.
- Icelandair: This full-service airline provides non-stop flights, with one-way ticket prices usually falling between $105 and $725. It dominates the route with about 56% of scheduled departures, and the flight duration is approximately 3 hours and 15 minutes.
- British Airways: Another full-service option, British Airways also offers non-stop service, with one-way fares typically ranging from $100 to $565. It represents around 41% of the flights on this route, with a total travel time of 3 hours and 15 minutes.
- SAS: Offering a one-stop service, SAS features one-way fares that generally range from $170 to $660. It accounts for about 2% of departures on this route, with an in-flight duration of 5 hours and a total journey time of approximately 8 hours, including layover.
Travelers can enhance their journey from London to Reykjavik by upgrading their flight, with both Icelandair and British Airways offering business class service for this route.
Best time to fly from London (LHR) to Reykjavik (KEF)
The most popular months for travelers flying from London to Reykjavik are March, June, and July, when peak temperatures in Reykjavik reach up to 52°F in July. If you prefer quieter travel, consider November, the least busy time to visit with temperatures around 40.1°F and typically the lowest average one-way fare (around $205). Flight availability peaks in September, with approximately 13 flights per week, making it easier to find convenient departure times. April and December have the fewest flights, with approximately 8 flights per week.
- Cheapest time to fly: November usually offers good deals with average one-way fare around $205, roughly 31% cheaper than the yearly average.
- More budget-friendly months to fly: March, April, and January typically offer average one-way fares of around $213.
- Most flight options: September has the highest number of flights from London to Reykjavik, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 36.5°F (2.5°C) | Average | 9 | $214 |
| February | 36.7°F (2.6°C) | Average | 9 | $339 |
| March | 36.7°F (2.6°C) | High | 10 | $212 |
| April | 40.1°F (4.5°C) | Average | 8 | $212 |
| May | 43.9°F (6.6°C) | Average | 9 | $341 |
| June | 48.7°F (9.3°C) | High | 11 | $341 |
| July | 52.0°F (11.1°C) | High | 11 | $392 |
| August | 52.0°F (11.1°C) | Average | 9 | $380 |
| September | 48.7°F (9.3°C) | Average | 13 | $267 |
| October | 43.9°F (6.6°C) | Low | 9 | $364 |
| November | 40.1°F (4.5°C) | Low | 11 | $205 |
| December | 36.1°F (2.3°C) | Low | 8 | $342 |
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
Alternative route from London (LHR) to Reykjavik (KEF)
- London to Reykjavik (LGW-KEF): Gatwick Airport (LGW) is located approximately 25 miles from Heathrow Airport (LHR). On this route, one-way economy prices generally fall between $80 and $650, influenced by the time of year and when you book. Typically, this route offers non-stop flights. Leading airlines operating on this route include Icelandair and the budget-friendly easyJet. Additionally, passengers can choose from business class service on this route.
How to find the best prices for flights from London (LHR) to Reykjavik (KEF)
Getting some of the best deals on flights from London to Reykjavik is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, which aligns with the typical timing for most travelers. Morning departures (5 a.m. to 12 p.m.) often provide lower prices, while afternoon flights (12 p.m. to 6 p.m.) are more popular. Additionally, flying on Saturday typically offers cheaper rates, although Monday remains the most traveled day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Reykjavik hotel and flight deals.
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Keflavik International Airport from Heathrow Airport
Reykjavik welcomes travelers from London with a range of transport options based on price, convenience, and proximity. For departures, Heathrow Airport is roughly a 35-minute drive (covering about 19 miles) from central London. Here's how to reach Reykjavik efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Reykjavik, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
- Car rental: Renting a car from Keflavik International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Keflavik International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Keflavik International Airport, Keflavik Seaport, a seaport, is located about 6.6 miles from the airport and is most easily reached by car.
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 December. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $117 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 London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) cost?
You can find cheap one-way flights from $117 and cheap return flights $196 London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) with Expedia. One-way flights typically cost between $102 and $1320, and return flights often range between $312 and $2656. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
The cheapest month to fly from LHR to KEF is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
There are 2 airlines offering direct flights from LHR to KEF:
- Icelandair operates around 14 direct flights from LHR to KEF every week
- British Airways operates around 8 direct flights from LHR to KEF every week
What is the cheapest airline that flies from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
British Airways is one of the cheapest airlines offering nonstop flights from London (LHR) to Reykjavik (KEF), with round-trip tickets starting from around $300.018. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
To find a cheap flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
The best airline to fly with from London (LHR) to Reykjavik (KEF) will differ from traveler to traveler. If you like to fly early, British Airways offers early morning flights. If price is the most important factor, British Airways typically offers the lowest fares. Lufthansa offers the most daily flights from LHR to KEF, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
There are approximately 3 nonstop flights per day from Heathrow (LHR) to Keflavik Intl. (KEF). For more options, look at flights that include layovers.
What is the earliest flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
The earliest flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) usually departs at around 6:00 AM, operated by Air Baltic and Edelweiss Air. This seasonal service is a great way to maximize your time in Reykjavik. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
The most popular departure times for flights from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) are in the early morning, from 6am to 9am. About 37% of passengers prefer this time window. Many major carriers, including British Airways, KL and SK, offer flights during this window. This timing works well because it allows you to start your day early and make the most of your time in Reykjavik.
How long does it take to fly from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
Direct flights from LHR to KEF usually take about 3 hours 20 minutes, traveling roughly 1,179 miles. If you opt for a connecting flight, expect to add around 19 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
Business class seats are offered on the LHR to KEF route. Airlines that offer business class service on this route include:
- Lufthansa
- Icelandair
- SAS
- Swiss International Air Lines
- LOT Polish Airlines
- British Airways
- Eurowings
- Austrian Airlines
- KLM
- Air France
How much is a business class flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
A direct, return business class ticket from London (LHR) to Reykjavik (KEF) typically costs between $1,223 - $1,501. A non-stop, one-way business class flight is usually around $516 - $732. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) if you opt for a connecting flight.
*Prices based on flights available on Expedia in the last year.
How do I earn miles on a London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Reykjavik from Heathrow (LHR)?
If you're planning to travel to Reykjavik from Heathrow (LHR), you can fly into Keflavik Intl. (KEF) Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Arlanda (ARN) before reaching Reykjavik. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) flight and hotel package?
Securing a London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.)?
If you booked your London (LHR-Heathrow) to Reykjavik (KEF-Keflavik Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Heathrow Airport |
|---|---|
Destination airport | Reykjavik–Keflavik Intl. Airport |
Distance | 1,178 miles away |
Airlines serving | SAS, Icelandair, British Airways, KLM, Lufthansa, Finnair, Austrian Airlines, LOT-Polish Airlines, Air France, Swiss International Air Lines, Iberia, United, WestJet, Alaska Airlines, Air China |
Popular airline | SAS |
Roundtrip price | $196 |
Average flight time | 3 hours 8 mins |