Cheap Flights from Sihanoukville to London

Compare Sihanoukville to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from Sihanoukville to London

Looking for a cheap last-minute deal or the best return flight from Sihanoukville to London? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sihanoukville to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sihanoukville to London flights are currently cheapest in February.

Alternative Sihanoukville to London routes

Looking for the cheapest, fastest or easiest route from Sihanoukville to London? You could fly into the following airports instead.

Sihanoukville to London: Flight information

The things to know before you go.
Cheapest flight foundRs122,091
Cheapest month to flyFebruary

Finding cheap flights from Sihanoukville to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Sihanoukville to London is Rs268,747. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sihanoukville to London. But we found flights with one or more stops from Rs268,747.
As of December 2025, there are no flights flying from Sihanoukville to London.
The cheapest month to fly from Sihanoukville to London is usually February.
If you're flying from Sihanoukville Airport, the cheapest airport near London is London Stansted – which is 48.6 km away from the centre of London. We've found flights into this airport from Rs268,747.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sihanoukville Airport to London on Saturday, 7 February 2026.
No airlines currently offer direct flights between Sihanoukville Airport and London. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In December, the average temperature is usually around 5°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Air Cambodia offers the cheapest flight tickets to London.

Flying from Sihanouk International Airport (KOS) to London: what you need to know

  • The timezone in London is UTC+0. The city is seven hours behind Sihanoukville, where Sihanouk International Airport is located.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. That way, you can comfortably board your KOS to London flight.

  • Travelling during a peak time like a bank holiday? Expect longer queues at check-in and security. To play it safe, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Finding a flight ticket from KOS to London with a stopover is easy. Whether you want to cut costs on your fare or add a new city to your itinerary, just uncheck 'Direct flights only' to browse your options. A top stop on this route is Kuala Lumpur International Airport (KUL).

  • To get to KOS from central Sihanoukville, it takes around 45 minutes if you're travelling by car. It's roughly 14 kilometres from the airport to the city centre.

  • Get your flight from Sihanouk International Airport to London off to a leisurely start. Just a short drive from KOS, book a night at Hana Resort and be well-rested for the trip ahead.

  • 78.65% of flights that leave from Sihanouk International Airport reach their destination on time.

How to find the cheapest flights from Sihanouk International Airport (KOS) to London

  • Rs122,091 is the lowest price we've seen for a one-way Sihanouk International Airport to London flight. A return ticket right now is Rs268,747. Depending on when you book and the availability, these fares may change.

  • To pick up cheap flights from KOS to London, book as early as you can. Airlines tend to offer lower fares when flights are first released.

  • The 'Whole month' search tool will show you the cheapest tickets from Sihanouk International Airport to London throughout the entire month. It's a good way to find a bargain if your dates are flexible.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll let you know when there's an even better deal on cheap flights from KOS to London.

  • Pick your ideal departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Sihanouk International Airport to London by 'Fastest,' 'Best' or 'Cheapest.'

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) to central London takes about 55 minutes by car. The centre is roughly 31 kilometres away.

  • If you're taking public transport, expect a journey time of about 1 hour.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from Sihanouk International Airport to London. Stay at one of these accommodation options near LHR instead:

  • Travel at your own pace with a London Heathrow Airport rental car. Pick up a set of wheels from Surprice, U-Save or Green Motion and chase adventure across London and beyond.

  • Booking your ride from London Heathrow Airport around one week ahead of your flight from KOS to London can help you secure the lowest rate.

London Gatwick Airport (LGW)

  • London Gatwick Airport (LGW) is around 80 kilometres from central London. Once you've disembarked your flight from Sihanouk International Airport to London, it'll take you around 1 hour 20 minutes to reach the heart of the city in a ride-share or cab.

  • If you're travelling on public transport, it'll take around 30 minutes.

  • Following your KOS to London flight, tuck yourself in at a hotel near LGW. These are some comfortable options that'll help you switch to relaxation mode:

  • The fastest way to reach your destination is with a London Gatwick Airport rental car. Collect your wheels from Green Motion, U-Save or Drivalia and get going in the blink of an eye.

  • Lock in the lowest price by securing your ride from LGW three weeks in advance. You can also expect to have a wider range of vehicles.

Stansted Airport (STN)

  • Make tracks for the city centre after your flight from Sihanouk International Airport to London has landed. Central London is about 64 kilometres from Stansted Airport (STN) and takes roughly 1 hour to get to by car.

  • If you use public transport, the journey will take you around 1 hour 25 minutes.

  • Check in to a hotel close to STN and get from baggage claim to bedtime in a flash. Whether you're arriving on a late KOS to London flight or just want a hassle-free arrival, these accommodation options put comfort right within reach:

  • Whether you're looking for a mini for a solo trip or a spacious SUV to fit the family, you'll find the ideal Stansted Airport rental car for your needs. Explore the types of wheels available here from suppliers such as Green Motion, Drivalia and Europcar.

  • If you're looking for a specific make or model, book your ride from STN around four weeks ahead of your flight from Sihanouk International Airport to London. This gives you a better shot at getting your preferred car, on top of a better deal.

Best time to go to London

  • Plan your trip to London during the high season if you want a lively atmosphere, but remember that prices are usually higher. Alternatively, book flights from Sihanouk International Airport to London in the low season when prices are cheaper and crowds are smaller.

  • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Book your Sihanouk International Airport to London flight ticket then if that's the weather you find most pleasant.

  • Look for cheap tickets from KOS to London in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 0ºC and 9ºC on average.

More about London

  • After booking your flight from Sihanouk International Airport to London, find a hotel that keeps you close to what you want to see. Make one of these options your base for exploring London:

  • All great adventures should include some sightseeing. The British Museum, Big Ben and Buckingham Palace are attractions you won't want to skip in London.

Explore more of United Kingdom

  • You've visited London, now it's time to discover more of United Kingdom. Travel around 161 kilometres north-west to Birmingham to check off its popular sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you've got a jam-packed schedule ahead.

  • If you're looking to explore another well-known destination in United Kingdom, head for Bristol, about 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.