372 € Cheap Flights from Perth to Sihanoukville

Compare Perth 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 Perth to Sihanoukville

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

Find the cheapest month to fly from Perth to Sihanoukville

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

Perth to Sihanoukville: Alternative routes

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

Perth to Sihanoukville: Flight information

The things to know before you go.
Cheapest flight found372 €
Cheapest month to flyMarch

Finding cheap flights from Perth to Sihanoukville: Frequently asked questions

The best price we found for a return flight from Perth to Sihanoukville is 372 €. 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 Perth to Sihanoukville. But we found flights with one or more stops from 372 €.
As of February 2026, there are no flights flying from Perth to Sihanoukville.
The cheapest month to fly from Perth to Sihanoukville is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Perth Airport to Sihanoukville Airport on Sunday, 1 March 2026.
No airlines currently offer direct flights between Perth 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, BatikAir Malaysia offers the cheapest flight tickets to Sihanoukville.

Travelling from Perth Airport (PER) to Sihanouk International Airport (KOS): what you need to know

  • Sihanoukville's timezone is UTC+7, which makes Sihanoukville one hour behind Perth.

  • Get to the airport on time so you don't miss your PER to KOS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • During popular months like July, it's a good idea to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during peak periods in general.

  • If you'd like to explore a different city along the way, search for a flight with a stopover. To see all your options for tickets from Perth Airport to Sihanouk International Airport, uncheck 'Direct flights only.' Tan Son Nhat International Airport is a sought-after stop between PER and KOS.

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

  • The cheapest price we've seen for a one-way Perth Airport to Sihanouk International Airport flight is 179 €. A round-trip plane ticket is currently 372 €. Depending on the availability when you book, these fares can change.

  • It's usually smart to book early if you want to get cheap tickets from PER to KOS. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Perth Airport to Sihanouk International Airport is more likely if you're flexible with your travel dates. Use the 'Whole month' search tool to see the lowest prices throughout the month and land a great deal.

  • There's no need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a change in price on cheap flights from PER to KOS.

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

Handy information about Perth Airport (PER)

  • Of the flights that depart from Perth Airport, 73.04% land on time at their destination.

  • Perth Airport is around 16 kilometres from central Perth. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.

  • You can expect a journey time of about 30 minutes on public transport.

  • Get your break off to a stress-free start by staying near PER. Whether you're taking an early flight from Perth Airport to Sihanouk International Airport or just don't want to be rushed, these stays are the answer:

Arriving at Sihanouk International Airport (KOS)

  • After your Perth Airport to Sihanouk International Airport flight has landed, kick back at a nearby hotel. Sok Sabay Resort is a great option that's not too far from KOS.

Getting from Sihanouk International Airport (KOS) to central Sihanoukville

  • Sihanouk International Airport is roughly 24 kilometres from the centre of Sihanoukville. The drive time takes about 45 minutes.

When to fly to Sihanouk International Airport (KOS)

  • It's time to pick your dates for your flight from Perth Airport to Sihanouk International Airport. January is the busiest month to head to Sihanoukville. If you want a more laid-back vibe, go in April.

  • Before locking in your flight from Perth Airport to Sihanouk International Airport, consider the type of weather you like. May is the warmest month in Sihanoukville, with temperatures ranging from 25ºC (77ºF) to 31ºC (88ºF).

  • January has average temperatures of between 23ºC (73ºF) and 29ºC (84ºF). Look for cheap tickets from PER to KOS sometime then if you like travelling in cooler conditions.

Explore more of Cambodia

  • Phnom Penh is just one of the many places in Cambodia waiting to be explored once you've seen Sihanoukville. Around 193 kilometres away to the north-east, well-known attractions include Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom.

  • Around 274 kilometres north of Sihanoukville, Battambang is another essential stop in Cambodia. Get a taste of what this destination has to offer at The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

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