C$463 Cheap Flights from Sydney (SYD) to Sihanoukville (KOS)

Compare Sydney to Sihanoukville flight deals

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

Book the best Sihanoukville fare with no extra fees

Flight deals from Sydney to Sihanoukville

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

Find the cheapest month to fly from Sydney to Sihanoukville

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

Sydney to Sihanoukville: Alternative routes

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

Sydney to Sihanoukville: Flight information

The things to know before you go.
Cheapest flight foundC$463
Cheapest month to flyNovember

Finding cheap flights from Sydney to Sihanoukville: Frequently asked questions

The best price we found for a return flight from Sydney to Sihanoukville is C$1,034. 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 Sydney to Sihanoukville. But we found flights with one or more stops from C$1,034.
As of July 2026, there are no flights flying from Sydney to Sihanoukville.
The cheapest month to fly from Sydney to Sihanoukville is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sydney Airport to Sihanoukville Airport on Monday, September 7, 2026.
No airlines currently offer direct flights between Sydney Airport 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.

Currently, AirAsia X offers the cheapest flight tickets to Sihanoukville.

Traveling from Sydney (Kingsford Smith) Airport (SYD) to Sihanouk International Airport (KOS): what you need to know

  • Be prepared for bigger queues during popular months like July and other peak seasons. Arriving up to fours hours ahead of international flights and two hours for domestic departures is a good idea.

  • If you'd like to tour a new city along the way, search for a flight with a stopover. To see all your options for flights from Sydney (Kingsford Smith) Airport to Sihanouk International Airport, uncheck 'Direct flights only.' Kuala Lumpur International Airport is a well-known stop between SYD and KOS.

  • Don't forget, you may need a visa to enter Cambodia. Visa regulations can vary and travel documentation requirements frequently change. Before locking in your cheap ticket from SYD to KOS, check with your carrier and your destination country's local embassy or consulate for the most up-to-date information.

How to find the cheapest flights from Sydney (Kingsford Smith) Airport (SYD) to Sihanouk International Airport (KOS)

  • The lowest price we've found for a one-way ticket from Sydney (Kingsford Smith) Airport to Sihanouk International Airport is C$463. For a return flight on this route, the best price is C$1,034. Depending on the availability when you book, these fares could change.

  • Don't wait until the last minute. You're more likely to get cheap flight tickets from SYD to KOS if you book in advance. Airlines often have some amazing early bird rates.

  • The 'Whole month' tool shows you the cheapest flight tickets from Sydney (Kingsford Smith) Airport to Sihanouk International Airport throughout the entire month. It's a great way to snap up a bargain if your plans are flexible.

  • Create a Price Alert for cheap flight tickets from SYD to KOS. You don't need to search every day to see if fares have fallen. We'll tell you the moment the price changes.

  • Use filters to tailor your flights from Sydney (Kingsford Smith) Airport to Sihanouk International Airport. Select your preferred arrival and departure times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Handy information about Sydney (Kingsford Smith) Airport (SYD)

  • Sydney (Kingsford Smith) Airport is about 18 kilometres from central Sydney. If you're ride-sharing, driving or catching a cab from the center, it'll take 21 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be approximately 27 minutes.

  • Got an early flight from Sydney (Kingsford Smith) Airport to Sihanouk International Airport? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by picking one of these stays near SYD:

Arriving at Sihanouk International Airport (KOS)

  • Consider checking in to Sihanouk City View Condominium after your flight from Sydney (Kingsford Smith) Airport to Sihanouk International Airport. It's a short drive from KOS and a comfortable option if you're keen to relax as soon as possible.

Getting from Sihanouk International Airport (KOS) to central Sihanoukville

  • Sihanouk International Airport is approximately 24 kilometres from the center of Sihanoukville. With your own car rental or if you're catching a cab, the drive is about 45 minutes.

When to fly to Sihanouk International Airport (KOS)

  • August is the most popular month for flights from Sydney (Kingsford Smith) Airport to Sihanouk International Airport. To avoid the crowds, go to Sihanoukville in April.

  • Book your flight from Sydney (Kingsford Smith) Airport to Sihanouk International Airport for May if you'd like to go to Sihanoukville during its warmest month. You can expect temperatures of between 25ºC and 31ºC.

  • January has average temperatures of between 23ºC and 29ºC. Search for cheap flight tickets from SYD to KOS sometime then if you like traveling in cooler conditions.

More about Sihanoukville

  • As soon as you've locked in your flights from SYD to KOS, you'll want to find somewhere to stay in Sihanoukville. Make one of these options your base for exploring this popular destination:

  • Ochheuteal Beach and Wat Leu Temple are just the start of the major attractions to add to your Sihanoukville must-do list. Keep the sightseeing going at Wat Krom Temple.

Complete your Sihanoukville trip with hotels and a car rental

  • Comparing flights is not our only party trick. After booking your cheap ticket to Sihanouk International Airport, explore our great car rental deals that'll give you the freedom and flexibility to travel around at your own pace. Next, take a look at our exclusive rates for hotels to find your ideal Sihanoukville stay.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.