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$222+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SYD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to Sydney Kingsford Smith are usually found in June or August, 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 June 12, 2025.

Round-trip from

$463
(Mytrip)

One-way from

$222
(Mytrip)

Popular in

January

Cheapest in

June

Average price

$704
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. 12% potential increase in price ($122 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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.
Mon 8/48:45 pmPNH - SYD
1 stop31h 35mMultiple Airlines
Fri 8/1512:50 pmSYD - PNH
2 stops30h 40mMultiple Airlines
Deal found 6/11$463
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Tue 10/2812:40 pmPNH - SYD
1 stop17h 45mXiamenAir
Wed 11/512:30 pmSYD - PNH
1 stop32h 35mXiamenAir
Deal found 6/10$477
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:35 pmPNH - SYD
1 stop13h 50mChina Southern
Wed 11/1211:25 amSYD - PNH
1 stop31h 10mChina Southern
Deal found 6/10$483
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/291:15 amPNH - SYD
1 stop27h 45mPhilippine Airlines
Thu 10/3011:35 amSYD - PNH
1 stop16h 40mPhilippine Airlines
Deal found 6/12$532
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/196:50 pmPNH - SYD
3 stops33h 50mChina Eastern
Thu 8/2811:20 amSYD - PNH
2 stops27h 15mChina Eastern
Deal found 6/10$603
This Malaysia Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 10/276:30 pmPNH - SYD
1 stop11h 50mMalaysia Airlines
Tue 10/2810:15 pmSYD - PNH
1 stop15h 35mMalaysia Airlines
Deal found 6/11$727
This Vietnam Airlines deal was found by Cheapflights users on 6/11. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:40 pmPNH - SYD
1 stop12h 35mVietnam Airlines
Mon 11/33:15 pmSYD - PNH
2 stops25h 45mVietnam Airlines
Deal found 6/11$793
This Cathay Pacific deal was found by Cheapflights users on 6/11. 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.
Thu 10/2311:25 amPNH - SYD
2 stops19h 00mCathay Pacific
Fri 10/3110:20 pmSYD - PNH
1 stop23h 25mCathay Pacific
Deal found 6/11$813

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 June 12, 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 8/4

8:45 pm-7:20 am

1 stop31h 35m

Sydney Kingsford Smith

Fri 8/15

12:50 pm-4:30 pm

2 stops30h 40m

$463

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 9/1

12:05 pm-7:40 pm

1 stop28h 35m

Sydney Kingsford Smith

Tue 9/16

10:15 am-10:40 am

1 stop27h 25m

$476

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Tue 10/28

12:40 pm-10:25 am

1 stop17h 45m

Sydney Kingsford Smith

Wed 11/5

12:30 pm-5:05 pm

1 stop32h 35m

$477

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Tue 7/29

1:15 am-8:00 am

1 stop27h 45m

Sydney Kingsford Smith

Thu 10/30

11:35 am-12:15 am

1 stop16h 40m

$532

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Tue 8/19

6:50 pm-7:40 am

3 stops33h 50m

Sydney Kingsford Smith

Thu 8/28

11:20 am-11:35 am

2 stops27h 15m

$603

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 10/27

6:30 pm-10:20 am

1 stop11h 50m

Sydney Kingsford Smith

Tue 10/28

10:15 pm-9:50 am

1 stop15h 35m

$727

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 10/23

4:40 pm-9:15 am

1 stop12h 35m

Sydney Kingsford Smith

Mon 11/3

3:15 pm-1:00 pm

2 stops25h 45m

$793

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 10/23

11:25 am-10:25 am

2 stops19h 00m

Sydney Kingsford Smith

Fri 10/31

10:20 pm-5:45 pm

1 stop23h 25m

$813

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 9/6

8:20 pm-7:20 am

2 stops32h 00m

$222

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Wed 10/29

12:40 pm-10:25 am

1 stop17h 45m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 results
1
2

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 June 9, 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 $1,041). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,635). 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 June 12, 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 June 12, 2025.
Read reviews from past customers who have flown Cathay Pacific, China Southern and Vietnam Airlines from Phnom Penh to Sydney. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.
Cathay Pacific
7.6
Good
892 reviews
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.
China Southern
7.5
Good
99 reviews
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.
Vietnam Airlines
7.5
Good
194 reviews
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.
Malaysia Airlines
7.4
Good
263 reviews
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.
Philippine Airlines
7.2
Good
871 reviews
Cathay Pacific
7.6
Good
892 reviews

Boarding

7.9

Food

7.3

Crew

8.0

Comfort

7.6

Overall

7.6

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

KS,Jun 2025

TFU - HKG

I like the crews and flights, English over the speakers were difficult to understand. The beef dinner was off flavor.

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 $476. Other airlines that can offer you cheap pricing are XiamenAir, from $477, and Philippine Airlines, from $532. China Southern is currently priced 45% 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 $249 on XiamenAir. Other airlines that offer cheap prices include Philippine Airlines from $369 and China Eastern from $413 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 $1,041). Flying from Phnom Penh to Sydney in December is currently the most expensive (average of $1,635). 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
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
XiamenAirCheapest$474Average$627FlexibilityNo cancel feeOn-time49%
Philippine AirlinesCheapest$502Average$539FlexibilityNo cancel feeOn-time60%
China SouthernCheapest$545Average$645FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$701Average$961FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$704Average$1,041FlexibilityNo cancel feeOn-time81%
Malaysia AirlinesCheapest$713Average$828FlexibilityNo cancel feeOn-time67%
Thai AirwaysCheapest$742Average$900FlexibilityNo cancel feeOn-time77%
Vietnam AirlinesCheapest$752Average$912FlexibilityNo cancel feeOn-time81%
Qantas AirwaysCheapest$1,006Average$1,109FlexibilityNo cancel feeOn-time74%

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