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$257+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SYD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to Sydney Kingsford Smith are usually found in December or May, booked 87 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$463
(Trip.com)

One-way from

$257
(Mytrip)

Popular in

January

Cheapest in

December

Average price

$801
Provider with most accurate pricing for Phnom Penh Pochentong-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Sydney Kingsford Smith flights.
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From Phnom Penh Pochentong to Sydney Kingsford Smith
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One-way flight from Phnom Penh Pochentong to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1211:55 amPNH - SYD
1 stop16h 25mMultiple Airlines
Sat 5/249:15 pmSYD - PNH
1 stop17h 05mMultiple Airlines
Deal found 3/27$463
This Gotogate deal was found by Cheapflights users on 3/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/226:00 pmPNH - SYD
1 stop36h 20mXiamenAir
Sat 6/2811:25 amSYD - PNH
1 stop26h 55mXiamenAir
Deal found 3/27$600
This OneTravel deal was found by Cheapflights users on 3/27. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2912:15 amPNH - SYD
2 stops28h 25mChina Eastern
Sat 4/512:20 pmSYD - PNH
3 stops38h 55mChina Eastern
Deal found 3/27$682
This oojo deal was found by Cheapflights users on 3/27. 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.
Sat 6/211:15 amPNH - SYD
1 stop27h 45mPhilippine Airlines
Sat 6/2810:10 amSYD - PNH
1 stop17h 05mPhilippine Airlines
Deal found 3/27$695
This Malaysia Airlines deal was found by Cheapflights users on 3/27. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:20 pmPNH - SYD
1 stop12h 40mMalaysia Airlines
Sat 5/2410:10 pmSYD - PNH
1 stop14h 50mMalaysia Airlines
Deal found 3/27$712
This Cathay Pacific deal was found by Cheapflights users on 3/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:30 pmPNH - SYD
1 stop13h 20mCathay Pacific
Tue 9/211:30 amSYD - PNH
2 stops25h 45mCathay Pacific
Deal found 3/27$770
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Thu 7/34:40 pmPNH - SYD
1 stop12h 35mVietnam Airlines
Tue 7/1510:15 amSYD - PNH
3 stops29h 45mVietnam Airlines
Deal found 3/27$865
This Singapore Airlines deal was found by Cheapflights users on 3/27. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:35 amPNH - SYD
1 stop18h 05mSingapore Airlines
Fri 1/96:45 amSYD - PNH
2 stops15h 50mSingapore Airlines
Deal found 3/27$1,287
This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:55 pmPNH - SYD
2 stops53h 20mUnited Airlines
Fri 1/912:10 pmSYD - PNH
2 stops38h 45mUnited Airlines
Deal found 3/27$14,964

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 March 28, 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

Mon 5/12

11:55 am-7:20 am

1 stop16h 25m

Sydney Kingsford Smith

Sat 5/24

9:15 pm-11:20 am

1 stop17h 05m

$463

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sun 6/22

6:00 pm-9:20 am

1 stop36h 20m

Sydney Kingsford Smith

Sat 6/28

11:25 am-11:20 am

1 stop26h 55m

$600

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 6/21

1:15 am-8:00 am

1 stop27h 45m

Sydney Kingsford Smith

Sat 6/28

10:10 am-12:15 am

1 stop17h 05m

$695

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sun 5/11

6:20 pm-10:00 am

1 stop12h 40m

Sydney Kingsford Smith

Sat 5/24

10:10 pm-10:00 am

1 stop14h 50m

$712

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Wed 8/27

6:30 pm-10:50 am

1 stop13h 20m

Sydney Kingsford Smith

Tue 9/2

11:30 am-10:15 am

2 stops25h 45m

$770

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 5/31

12:10 am-7:40 am

2 stops28h 30m

Sydney Kingsford Smith

Sun 6/15

12:00 pm-11:35 am

2 stops50h 35m

$784

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 7/3

4:40 pm-8:15 am

1 stop12h 35m

Sydney Kingsford Smith

Tue 7/15

10:15 am-1:00 pm

3 stops29h 45m

$865

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 5/12

9:45 am-7:30 pm

2 stops30h 45m

$257

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 5/12

12:05 pm-8:25 am

1 stop17h 20m

$262

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 5/5

12:20 pm-9:20 am

1 stop18h 00m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 13 results
1
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Compare providers for flights from Phnom Penh to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Phnom Penh to Sydney in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
OneTravelPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phnom Penh-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phnom Penh-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 2025.

Booking 87 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, March is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $1,044). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,643). 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 March 28, 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 March 28, 2025.
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.
Vietnam Airlines
7.6
Good
192 reviews
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.
Cathay Pacific
7.5
Good
837 reviews
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.
China Southern
7.5
Good
94 reviews
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.
Malaysia Airlines
7.3
Good
251 reviews
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.
Philippine Airlines
7.2
Good
842 reviews
Vietnam Airlines
7.6
Good
192 reviews

Food

6.8

Overall

7.6

Comfort

7.5

Boarding

7.5

Crew

8.1

Entertainment

6.3

Reviews

1 / 12
6.0
Good

Glenn,Jan 2025

PQC - SGN

The planes are fairly new, but interior is not in great condition. Boarding process is a little confusing and way too much carry on really makes the boarding process more stressful than it needs to be.

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 $600. Other airlines that can offer you cheap pricing are Philippine Airlines, from $695, and Malaysia Airlines, from $712. XiamenAir is currently priced 31% 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 $262 on China Southern. Other airlines that offer cheap prices include XiamenAir from $342 and China Eastern from $368 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, March is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $1,044). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,643). 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 Phnom Penh?

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

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Top 9 airlines flying from Phnom Penh to Sydney

Discover the top 9 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
XiamenAirCheapest$481Average$619FlexibilityNo cancel feeOn-time49%
Philippine AirlinesCheapest$502Average$539FlexibilityNo cancel feeOn-time60%
China SouthernCheapest$545Average$644FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$718Average$1,028FlexibilityNo cancel feeOn-time81%
Malaysia AirlinesCheapest$728Average$884FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$732Average$1,005FlexibilityNo cancel feeOn-time72%
Thai AirwaysCheapest$742Average$901FlexibilityNo cancel feeOn-time77%
Vietnam AirlinesCheapest$792Average$915FlexibilityNo cancel feeOn-time81%
Qantas AirwaysCheapest$935Average$1,109FlexibilityNo cancel feeOn-time74%
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