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Cheap flights from Phnom Penh to Sydney from $408

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SYD
2 Apr — 9 Apr1
1 adult

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 Wednesday or Friday and return on a Tuesday

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 28 March 2025.

Round-trip from

$731

One-way from

$408

Popular in

January

Cheapest in

December

Average price

$1,270
17/5-22/5
  • 17/5-22/5
  • 2 total stops
  • 50h 25m total
  • Phnom Penh to Sydney
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12/5
  • 12/5
  • 2 total stops
  • 30h 45m total
  • Phnom Penh to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($238 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($68 potential savings vs. average return 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 28 March 2025.

Thu 3/712:05PNH - SYD
1 stop17h 20mChina Southern
Tue 15/721:45SYD - PNH
1 stop15h 55mChina Southern
Deal found 27/3$750
Sun 11/520:45PNH - SYD
1 stop31h 35mMultiple Airlines
Sun 18/509:15SYD - PNH
2 stops32h 00mMultiple Airlines
Deal found 27/3$763
Mon 13/1012:20PNH - SYD
1 stop18h 00mXiamenAir
Mon 12/112:30SYD - PNH
1 stop32h 35mXiamenAir
Deal found 27/3$944
Thu 18/1201:15PNH - SYD
1 stop28h 30mPhilippine Airlines
Thu 8/111:35SYD - PNH
1 stop16h 40mPhilippine Airlines
Deal found 27/3$950
Sat 29/300:15PNH - SYD
2 stops28h 25mChina Eastern
Sat 5/412:20SYD - PNH
3 stops38h 55mChina Eastern
Deal found 27/3$1,081
Sun 11/518:20PNH - SYD
1 stop12h 40mMalaysia Airlines
Sat 24/522:10SYD - PNH
1 stop14h 50mMalaysia Airlines
Deal found 27/3$1,129
Wed 27/818:30PNH - SYD
1 stop13h 20mCathay Pacific
Tue 2/911:30SYD - PNH
2 stops25h 45mCathay Pacific
Deal found 27/3$1,221
Thu 3/716:40PNH - SYD
1 stop12h 35mVietnam Airlines
Tue 15/710:15SYD - PNH
3 stops29h 45mVietnam Airlines
Deal found 27/3$1,372
Fri 19/1209:35PNH - SYD
1 stop18h 05mSingapore Airlines
Fri 9/106:45SYD - PNH
2 stops15h 50mSingapore Airlines
Deal found 27/3$2,041
Thu 18/1200:25PNH - SYD
1 stop35h 05mAir China
Wed 7/120:40SYD - PNH
1 stop30h 30mAir China
Deal found 27/3$2,864
Sat 20/1223:55PNH - SYD
2 stops53h 20mUnited Airlines
Fri 9/112:10SYD - PNH
2 stops38h 45mUnited Airlines
Deal found 27/3$23,729

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 28 March 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

Sat 17/5

15:35-19:40

1 stop25h 05m

Sydney Kingsford Smith

Thu 22/5

21:15-19:35

1 stop25h 20m

$731

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sun 22/6

18:00-09:20

1 stop36h 20m

Sydney Kingsford Smith

Sat 28/6

11:25-11:20

1 stop26h 55m

$951

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Fri 16/5

00:10-08:30

2 stops29h 20m

Sydney Kingsford Smith

Thu 22/5

11:20-11:35

2 stops27h 15m

$1,062

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 21/6

01:15-08:00

1 stop27h 45m

Sydney Kingsford Smith

Sat 28/6

10:10-00:15

1 stop17h 05m

$1,102

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sun 11/5

18:20-10:00

1 stop12h 40m

Sydney Kingsford Smith

Sat 24/5

22:10-10:00

1 stop14h 50m

$1,129

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Wed 27/8

18:30-10:50

1 stop13h 20m

Sydney Kingsford Smith

Tue 2/9

11:30-10:15

2 stops25h 45m

$1,221

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 3/7

16:40-08:15

1 stop12h 35m

Sydney Kingsford Smith

Tue 15/7

10:15-13:00

3 stops29h 45m

$1,372

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 12/5

09:45-19:30

2 stops30h 45m

$408

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 12/5

12:05-08:25

1 stop17h 20m

$415

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Mon 5/5

12:20-09:20

1 stop18h 00m

$542

Flights are sorted by cheapest return flights first.

Deals found on 28/3

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 return 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 return flight from Phnom Penh to Sydney. Price data was last updated on 21 March 2025.

To ensure you get the cheapest price possible for a flight from Phnom Penh to Sydney, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $129). Flying from Phnom Penh to Sydney in October is currently the most expensive (average of $171). 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 28 March 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 28% on flights from Phnom Penh to Sydney by exploring options for tickets in the morning.

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 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 28 March 2025.
Vietnam Airlines
7.6
Good
192 reviews
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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
Check prices

Boarding

7.5

Overall

7.6

Crew

8.1

Comfort

7.5

Food

6.8

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?

    According to our current data, XiamenAir ($951), China Eastern ($1,062), and Philippine Airlines ($1,102) offers the cheapest pricing from Phnom Penh to Sydney. XiamenAir is 31% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as $415. However, be on the lookout for offers from XiamenAir and China Eastern, as they are both options that can get you from Phnom Penh to Sydney for a low price.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $129). Flying from Phnom Penh to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Cronulla
Randwick
Terrigal
Lithgow
Bondi Beach
Leura
Swansea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Phnom Penh to Sydney

Discover the top 4 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 647,157 searches. Data last updated 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$811Average$1,214FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Vietnam AirlinesCheapest$1,005Average$1,434FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Cathay PacificCheapest$1,270Average$1,270FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Singapore AirlinesCheapest$1,323Average$1,637FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Phnom Penh to Sydney?

Cheapflights makes it easy to find Phnom Penh to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Phnom Penh to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Phnom Penh by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Phnom Penh to Sydney with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Phnom Penh to Sydney, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Phnom Penh to Sydney become cheaper?

Yes! Start tracking prices for Phnom Penh to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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