£627 Cheap Flights from Sihanoukville (KOS) to London (LHR)

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Cheap Flights from Sihanoukville (KOS) to London (LHR)

Prices were available within the past 7 days and start at £627 for one-way flights and £973 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£973 Return, found 4 days ago
£973
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £973 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£998 Return, found 4 days ago
£998
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £998 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,000 Return, found 4 days ago
£1,000
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,000 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,011 Return, found 4 days ago
£1,011
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,011 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,064 Return, found 4 days ago
£1,064
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,064 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,066 Return, found 4 days ago
£1,066
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,066 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,096 Return, found 4 days ago
£1,096
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,096 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,098 Return, found 4 days ago
£1,098
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,098 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,103 Return, found 4 days ago
£1,103
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,103 found 4 days ago
Cambodia Angkor Air
Thu, 20 Jun - Wed, 26 Jun
KOS
Sihanoukville
LHR
London
£1,140 Return, found 4 days ago
£1,140
Return
found 4 days ago
Select Cambodia Angkor Air flight, departing Thu, 20 Jun from Sihanoukville to London, returning Wed, 26 Jun, priced at £1,140 found 4 days ago
Flight from Sihanoukville to London route information
Origin airport
Sihanoukville
Destination airport
Heathrow
Return price
£973
Distance
9983 km

Compare flights from Sihanoukville to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sihanoukville to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sihanoukville to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Sihanoukville (KOS) to Heathrow (LHR) 

The easiest way to view the best deals on flights from Sihanoukville to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sihanoukville to Heathrow start at just £973 and range up to £1,140.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sihanoukville and London
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sihanoukville to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sihanoukville to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from KOS to Heathrow Airport?
Round-trip tickets between KOS and Heathrow Airport (LHR) start from £973. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year — make your booking 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 Sihanoukville Airport (KOS) to Heathrow Airport?
We understand that your situation can change unexpectedly, so we’ve made it as easy as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Sihanouk Intl. Airport to Heathrow Airport 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 KOS to Heathrow Airport (LHR) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Sihanouk Intl. Airport to LHR?
The distance is around 10,100 kilometres, so pack your carry-on bag with all you need to make the long journey comfortable. Wondering what to take on board your Preah Sihanouk to Hounslow flight? A travel pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from KOS to London Heathrow?
Unfortunately, there are no airlines that directly fly between Sihanouk Intl. Airport and Heathrow Airport. You’ll have to book a flight with at least one stop.
Are KOS to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Sihanoukville Airport (KOS) to LHR can be hit-or-miss. You may be able to score a great bargain, but you could also completely miss out! If you’d rather play it safe and start your travel planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices so far in advance. Our top tip? Check back often as prices are updated regularly.
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