Cheap Flights from London to Sihanoukville

Compare London to Sihanoukville flight deals

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

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Flight deals from London to Sihanoukville

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

Find the cheapest month to fly from London to Sihanoukville

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

London to Sihanoukville: Alternative routes

Compare routes from London to Sihanoukville below. You may find an airport to fly into that's cheaper, faster, or easier than Sihanoukville.

London to Sihanoukville: Flight information

The things to know before you go.
Cheapest flight foundRs104,284
Cheapest month to flyNovember

Finding cheap flights from London to Sihanoukville: Frequently asked questions

The best price we found for a return flight from London to Sihanoukville is Rs206,363. 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 London to Sihanoukville. But we found flights with one stop from Rs206,363.
As of October 2025, there are no flights flying from London to Sihanoukville.
The cheapest month to fly from London to Sihanoukville is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Sihanoukville Airport on Sunday, 30 November 2025.
No airlines currently offer direct flights between London and Sihanoukville Airport. 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 Sihanoukville 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 Sihanoukville is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Sihanoukville is Pegasus Airlines .

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

  • When organising your flight from London to Sihanouk International Airport (KOS), you'll have a good choice of airports to leave from. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for departure options. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Sihanoukville is seven hours ahead of London. Sihanouk International Airport is located in Sihanoukville, which follows the UTC+7 timezone.

  • Your flight from London to KOS won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • With more travellers during high season, it's wise to be at your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow extra time for delays.

Airports in London

London Heathrow Airport (LHR)

  • Whether you're hoping to visit another city along the way or just take a break, we make it easy to book a flight with a stopover. To check out your options taking off from London Heathrow Airport (LHR), deselect 'Direct flights only.' Kuala Lumpur International Airport (KUL) is a stop you can make when searching for cheap flights from London to KOS.

  • LHR is around 31 kilometres from central London. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 55 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 1 hour.

  • Looking for a convenient hotel close to London Heathrow Airport? If you've booked an early flight from London to Sihanouk International Airport, these stays will have you sleeping moments from check-in:

  • When it comes to London Heathrow Airport's on-time performance, 68.18% of flights arrive within the scheduled time frame.

London Gatwick Airport (LGW)

  • LGW is about 80 kilometres from central London. It takes 1 hour 20 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 30 minutes.

  • Got an early start? Think about staying at one of these accommodation options near London Gatwick Airport the day before your London to KOS flight:

  • London Gatwick Airport has an on-time performance rate of 69.26%. This figure sheds light on how frequently flights that depart from this airport reach their destination on schedule.

Stansted Airport (STN)

  • STN is roughly 64 kilometres from central London. Driving from the city centre to the airport takes about 1 hour. If you're thinking about taking public transport, expect a journey of around 1 hour 25 minutes.

  • Rest a little longer, move a little slower, and still make your London to Sihanouk International Airport flight with plenty of time to spare. These accommodation options near Stansted Airport make getting to the terminal a breeze if you're flying out first thing:

  • Flights that depart from STN reach their destination within the scheduled time frame 64.73% of the time.

About Sihanouk International Airport (KOS)

  • After your flight from London to Sihanouk International Airport has landed, kick back and relax at a nearby hotel. Sok Sabay Resort is a great option that's an easy drive from KOS.

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

  • Right now, Rs104,284 is the best price we've found for a one-way ticket from London to Sihanouk International Airport. The cheapest price for a return flight is Rs206,363. Keep in mind fares may change due to demand at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from London to KOS. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely pay.

  • Cheap London to Sihanouk International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' tool to compare fares throughout the month and then choose the cheapest day.

  • Locking in a cheap flight ticket from London to KOS is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when there's a better deal.

  • Tailor your trip using filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from London to Sihanouk International Airport.

The best time to fly from London to Sihanouk International Airport (KOS)

  • Think about your travel style when deciding your trip dates. April is the quietest month to go to Sihanoukville. August is when most people book flights from London to Sihanouk International Airport (KOS), which may be perfect if you enjoy travelling when it's busier.

  • The warmest month in Sihanoukville is May, with temperatures ranging between 25ºC and 31ºC. Book your London to KOS flight ticket then if that's your ideal forecast.

  • January sees temperatures of between 23ºC and 29ºC. Look for cheap tickets from London to Sihanouk International Airport around that time if you'd rather travel in cooler conditions.

More about Sihanoukville

  • Once you've booked your flight from London to Sihanouk International Airport, find a hotel that offers a good mix of location and comfort. Make one of these options your base for exploring Sihanoukville:

  • There are so many things to see and do in this city, it can be hard to work out where to begin. Sokha Beach, Ochheuteal Beach and Pantai Ou Chheuteal are popular attractions which should be on any well-planned Sihanoukville itinerary.

Explore more of Cambodia

  • You've done Sihanoukville, now it's time to discover other corners of Cambodia. Travel about 177 kilometres north-east to Phnom Penh to tick off its popular sights. From Royal Palace to Tuol Sleng Genocide Museum and Genocide museum, you'll have a packed itinerary ahead.

  • Battambang is another sought-after destination in Cambodia and is around 290 kilometres north of Sihanoukville. No journey is complete without a visit to Phare Ponleu Selpak, Battambang Day Tour and Phnom Sampeau.

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