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$240+ Cheap flights from Phnom Penh (PNH) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SYD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to Sydney Kingsford Smith are usually found in October or June, booked 50 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Phnom Penh to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 31, 2025.

Round-trip from

$463
(Booking.com)

One-way from

$240
(Mytrip)

Popular in

January

Cheapest in

October

Average price

$897
From Phnom Penh Pochentong to Sydney Kingsford Smith
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One-way flight from Phnom Penh Pochentong to Sydney Kingsford Smith
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Highest demand for flights based on searches. 10% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Phnom Penh to Sydney

Cheapest flights from Phnom Penh to Sydney
Explore the most affordable flight options available from Phnom Penh to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Booking.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/36:00 pmPNH - SYD
1 stop36h 20mMultiple Airlines
mié. 11/269:50 pmSYD - PNH
1 stop17h 45mMultiple Airlines
Deal found 7/31$463
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/112:05 pmPNH - SYD
1 stop28h 20mChina Southern
dom. 9/149:45 pmSYD - PNH
1 stop29h 25mChina Southern
Deal found 7/31$466
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1012:20 pmPNH - SYD
1 stop18h 00mXiamenAir
mar. 9/2311:25 amSYD - PNH
1 stop26h 55mXiamenAir
Deal found 7/31$564

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from Phnom Penh to Sydney that are best for you.

Fly from

Phnom Penh

Fly to

Sydney

Route

Depart

Return

Price

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

mié. 9/3

6:00 pm-9:20 am

1 stop36h 20m

Sydney Kingsford Smith

mié. 11/26

9:50 pm-11:35 am

1 stop17h 45m

$463

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

lun. 9/1

12:05 pm-7:25 pm

1 stop28h 20m

Sydney Kingsford Smith

dom. 9/14

9:45 pm-12:10 am

1 stop29h 25m

$466

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

mié. 9/10

12:20 pm-9:20 am

1 stop18h 00m

Sydney Kingsford Smith

mar. 9/23

11:25 am-11:20 am

1 stop26h 55m

$564

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

lun. 8/25

8:00 am-8:25 am

1 stop21h 25m

$240

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

mié. 9/10

12:20 pm-9:20 am

1 stop18h 00m

$243

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

lun. 8/25

9:45 am-8:00 pm

2 stops31h 15m

$262

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

mié. 9/10

12:40 pm-8:00 am

2 stops40h 20m

$371

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

mar. 9/2

5:45 pm-8:15 am

3 stops35h 30m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Phnom Penh to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Phnom Penh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to Sydney

How far ahead should I book a flight from Phnom Penh to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Phnom Penh to Sydney. Price data was last updated on July 25, 2025.

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phnom Penh to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phnom Penh to Sydney?

Currently, February is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $1,028). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PNH to SYD?

Find hourly flight availability from Phnom Penh to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

A simple way to save on the total cost of your ticket is to fly from Phnom Penh to Sydney in the morning. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Phnom Penh to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Phnom Penh to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phnom Penh to Sydney flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Phnom Penh to Sydney?

What’s the top layover airport for flights from Phnom Penh to Sydney?

Share of 1-stop round-trip flights from Phnom Penh to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

Singapore (SIN) – chosen by Cheapflights users on 55% of 1-stop itineraries from Phnom Penh to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from Phnom Penh to Sydney?

Average round-trip fare for 1-stop flights from Phnom Penh to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Guangzhou (CAN) is the most affordable 1-stop option, with an average round-trip price of $654.

What’s the fastest layover option from Phnom Penh to Sydney?

Shortest average travel time for 1-stop one-way flights from Phnom Penh to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Kuala Lumpur (KUL) have the shortest average one-way travel time for 1-stop routes: 11h 50m.

Which airport typically offers the quickest layover for flights from Phnom Penh to Sydney?

Average layover duration for 1-stop one-way flights from Phnom Penh to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 2h 23m.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated julio 31, 2025.
Read through reviews of airlines operating flights from Phnom Penh to Sydney, such as China Southern, Vietnam Airlines, and China Eastern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Southern
7.6
Good
104 reviews

Food

7.4

Entertainment

7.6

Boarding

8.0

Overall

7.6

Crew

8.3

Comfort

7.9

Reviews

1 / 4
8.0
Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.
China Southern
7.6
Good
104 reviews
China Southern
7.6
Good
104 reviews

Food

7.4

Entertainment

7.6

Boarding

8.0

Overall

7.6

Crew

8.3

Comfort

7.9

Reviews

1 / 4
8.0
Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.
Vietnam Airlines
7.5
Good
197 reviews
China Southern
7.6
Good
104 reviews

Food

7.4

Entertainment

7.6

Boarding

8.0

Overall

7.6

Crew

8.3

Comfort

7.9

Reviews

1 / 4
8.0
Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.
China Eastern
7.2
Good
158 reviews
China Southern
7.6
Good
104 reviews

Food

7.4

Entertainment

7.6

Boarding

8.0

Overall

7.6

Crew

8.3

Comfort

7.9

Reviews

1 / 4
8.0
Excellent

Peggy,Jul 2025

WUH - SFO

Overall it's good, room temperature is a little high in the airport.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Phnom Penh to Sydney round-trip?

    Cheapflights users have booked flights from Phnom Penh to Sydney round-trip from $466. Another airline that can offer you cheap pricing is XiamenAir. China Southern is currently priced 46% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Phnom Penh to Sydney one-way?

    One-way options have recently been found by users for as low as $240 on China Southern. Other airlines that offer cheap prices include XiamenAir from $243 and China Eastern from $371 one-way.

  • Can I find deals for flights from Phnom Penh to Sydney that include hotel bookings?

    Yes. In addition to deals on Phnom Penh to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phnom Penh to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to Sydney.

  • Can I find deals for business class flights from Phnom Penh to Sydney?

    Yes. Cheapflights offers flight deals from Phnom Penh to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phnom Penh to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $1,028). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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Top 7 airlines flying from Phnom Penh to Sydney

Discover the top 7 airlines that operate flights from Phnom Penh to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$473Average$643FlexibilityNo cancel feeOn-time69%
XiamenAirCheapest$474Average$619FlexibilityNo cancel feeOn-time49%
Philippine AirlinesCheapest$502Average$540FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$701Average$1,085FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$701Average$956FlexibilityNo cancel feeOn-time72%
Malaysia AirlinesCheapest$713Average$828FlexibilityNo cancel feeOn-time67%
Vietnam AirlinesCheapest$750Average$871FlexibilityNo cancel feeOn-time81%

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