S$369 Cheap Flights from London to Kos

View S$369 flight on Thu, 16 Jul, 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Kos (KGS-Kos Island Intl.)

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Cheap Flights from London to Kos (LHR-KGS)

Prices were available within the past 7 days and start at S$369 for one-way flights and S$505 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$505 Return, found 8 hours ago
S$505
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$505 found 8 hours ago
Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$528 Return, found 8 hours ago
S$528
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$528 found 8 hours ago
Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$537 Return, found 8 hours ago
S$537
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$537 found 8 hours ago
Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$542 Return, found 8 hours ago
S$542
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$542 found 8 hours ago
Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$557 Return, found 8 hours ago
S$557
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$557 found 8 hours ago
Eurowings
Thu, 16 Jul - Thu, 23 Jul
LHR
London
KGS
Kos
S$558 Return, found 8 hours ago
S$558
Return
found 8 hours ago
Select Eurowings flight, departing Thu, 16 Jul from London to Kos, returning Thu, 23 Jul, priced at S$558 found 8 hours ago
Lufthansa
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$566 Return, found 8 hours ago
S$566
Return
found 8 hours ago
Select Lufthansa flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$566 found 8 hours ago
Aegean
Thu, 16 Jul - Thu, 23 Jul
LHR
London
KGS
Kos
S$603 Return, found 8 hours ago
S$603
Return
found 8 hours ago
Select Aegean flight, departing Thu, 16 Jul from London to Kos, returning Thu, 23 Jul, priced at S$603 found 8 hours ago
Austrian Airlines
Sat, 18 Jul - Sat, 25 Jul
LHR
London
KGS
Kos
S$605 Return, found 8 hours ago
S$605
Return
found 8 hours ago
Select Austrian Airlines flight, departing Sat, 18 Jul from London to Kos, returning Sat, 25 Jul, priced at S$605 found 8 hours ago
Swiss International Air Lines
Thu, 16 Jul - Thu, 23 Jul
LHR
London
KGS
Kos
S$744 Return, found 8 hours ago
S$744
Return
found 8 hours ago
Select Swiss International Air Lines flight, departing Thu, 16 Jul from London to Kos, returning Thu, 23 Jul, priced at S$744 found 8 hours ago

Find the cheapest month to fly from London (LHR) to Kos (KGS)

January is typically the cheapest month to fly

From S$232 - S$573 per traveller.
London to Kos route information
Origin airport
Heathrow
Destination airport
Kos Island Intl.
Return price
S$504
Distance
2694 km

Perfect flights from London to Kos

Your Journey from London to Kos

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Kos caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Eurowings, Aegean, Lufthansa, Austrian Airlines, Swiss International Air Lines. Our selection of flights from Heathrow to Kos Island Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Kos Flights

Experience the joy of finding cheap flights from Heathrow to Kos Island Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$369 and roundtrip prices from S$505*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Kos with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Kos

Picture yourself stepping off the plane in Kos and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Kos Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Kos.
 

Beyond the Flight – Exploring Kos

With Expedia, your adventure extends beyond the flight. Explore Kos at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Kos with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Kos with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from LHR to Kos Island Intl. Airport (KGS)?
Round-trip journeys between Heathrow Airport (LHR) and KGS start from S$505. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss 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 KGS?
The majority of flights can be conveniently cancelled online, but whether or not you incur a fee depends on your airline. If you do have to cancel your holiday, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Heathrow Airport to KGS 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 Heathrow Airport to Kos Island Intl. Airport (KGS) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Heathrow Airport to Kos Airport?
It takes approximately 4 hours and 36 minutes to journey from Heathrow Airport (LHR) to Kos Island Intl. Airport (KGS) (KGS). But with some music and a few interesting magazines, the hours will pass by quicker.
How far is the flight from Heathrow Airport to KGS?
The flight distance from LHR to KGS is 2,700 kilometres. Bring a drink, some snacks and a good book to read. Keep yourself busy in the air and time will zip by.
Which airlines fly direct from Heathrow Airport (LHR) to Kos Island Intl. Airport (KGS)?
You won't find any airlines flying directly between Heathrow Airport (LHR) and Kos Airport, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are LHR to KGS flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Heathrow Airport to KGS at the last minute could save you some serious cash. However, you might miss out on a flight altogether! If you'd rather err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Explore a world of travel with Expedia

*Available to Expedia members.