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Cheap flights from Phnom Penh to Sydney from $360

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to Sydney departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Phnom Penh to Sydney

Cheap round-trip flights

Multiple Airlines Logo
7:50 pm - 7:35 amPNH-SYD
31h 45m2 stops
Multiple Airlines Logo
9:30 pm - 6:30 amSYD-PNH
61h 00m2 stops
$8,572Multiple Airlines
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Sat, Mar 7 - Sat, Mar 21

momondo Fare Finder

 
Customize your flight search to find flights from Phnom Penh to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Phnom Penh to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 3/7

7:50 pm-7:35 am

2 stops31h 45m

Sydney Kingsford Smith

Sat 3/21

9:30 pm-6:30 am

2 stops61h 00m

$8,572

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Fri 10/24

1:55 pm-12:35 pm

2 stops18h 40m

$360

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Fri 10/24

1:55 pm-7:25 am

1 stop13h 30m

$672

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 9/22

1:55 pm-2:15 pm

2 stops21h 20m

$2,336

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Tue 12/30

7:50 pm-10:00 am

2 stops58h 10m

$2,986

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Tue 12/30

7:50 pm-6:15 am

3 stops54h 25m

$5,645

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sydney from

How to get the cheapest flight ticket from Phnom Penh to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, August is the cheapest month to fly from Phnom Penh to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $722. If you are unable to visit Sydney during the month of August, then departing from Phnom Penh during the month October is also very affordable. Most momondo users find prices during this month for around $724.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Phnom Penh to Sydney is on a Thursday when prices can be found for as low as $746. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $935.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Phnom Penh to Sydney in the morning for as low as $773. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly at noon, with an average ticket price of $1,047. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Phnom Penh when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $874 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Phnom Penh for as low as $650 on momondo.

How have Phnom Penh to Sydney flight prices changed over time?

As of September 2025, prices for Phnom Penh to Sydney flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Phnom Penh to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Phnom Penh to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phnom Penh to Sydney (PNH to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to Sydney

Direct flights

None
There are no direct flights from Phnom Penh to Sydney. There are no popular flight routes from Phnom Penh to Sydney.
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  • How far is Phnom Penh Pochentong to Sydney Kingsford Smith by plane?

    The distance between Phnom Penh Pochentong and Sydney Kingsford Smith is about 4366.2 mi. 31h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport are updated daily.

  • How many operators does momondo search for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Phnom Penh to Sydney?

Best airlines flying from Phnom Penh to Sydney

Compare and see reviews for airlines that fly from Phnom Penh to Sydney with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom $473Free CancellationRating
7.5
110 reviews
Search China Southern flights
XiamenAirPriceFrom $474Free CancellationRating
6.6
41 reviews
Search XiamenAir flights
Singapore AirlinesPriceFrom $701Free CancellationRating
8.1
1,367 reviews
Search Singapore Airlines flights
Cathay PacificPriceFrom $701Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights
Malaysia AirlinesPriceFrom $713Free CancellationRating
7.3
278 reviews
Search Malaysia Airlines flights
Vietnam AirlinesPriceFrom $747Free CancellationRating
7.6
201 reviews
Search Vietnam Airlines flights

Traveling to a place near Sydney?

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Katoomba
Wollongong
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Cronulla
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Lithgow
Penrith
Manly
Leura
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Terrigal
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Why use momondo?

Why should I use momondo to find a flight deal from Phnom Penh to Sydney?

It is quick and easy to find Phnom Penh to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Phnom Penh to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Phnom Penh to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Phnom Penh to Sydney?

momondo helps you find the best flight between Phnom Penh and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Phnom Penh to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from Phnom Penh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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