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Cheap flights from Sydney to Phnom Penh from $331

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PNH
15 Jul — 22 Jul1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Phnom Penh Pochentong are usually found in February or October, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Sydney to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Phnom Penh (PNH). 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 10 July 2025.

Round-trip from

$719

One-way from

$332

Popular in

December

Cheapest in

February

Average price

$929
2/8-19/8
  • 2/8-19/8
  • 5 total stops
  • 66h 45m total
  • Sydney to Phnom Penh
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29/7
  • 29/7
  • 2 total stops
  • 22h 05m total
  • Sydney to Phnom Penh
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($394 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($97 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Sydney to Phnom Penh

Cheapest flights from Sydney to Phnom Penh
Explore the most affordable flight options available from Sydney to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2025.

Sat 2/813:10SYD - PNH
2 stops22h 35mMultiple Airlines
Tue 19/820:20PNH - SYD
3 stops44h 10mMultiple Airlines
Deal found 9/7$719
Sun 7/910:15SYD - PNH
1 stop26h 00mVietnam Airlines
Mon 22/916:40PNH - SYD
1 stop12h 35mVietnam Airlines
Deal found 8/7$742
Sun 7/922:10SYD - PNH
1 stop22h 15mMalaysia Airlines
Mon 29/911:10PNH - SYD
1 stop16h 25mMalaysia Airlines
Deal found 8/7$756
Sat 2/811:20SYD - PNH
2 stops27h 15mChina Eastern
Thu 14/818:50PNH - SYD
3 stops33h 50mChina Eastern
Deal found 9/7$788

Cheapflights Fare Finder

Customise your flight search to find flights from Sydney to Phnom Penh 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 10 July 2025.
Use the filters below to find and compare flights from Sydney to Phnom Penh that are best for you.

Fly from

Sydney

Fly to

Phnom Penh

Route

Depart

Return

Price

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sat 2/8

13:10-08:45

2 stops22h 35m

Phnom Penh Pochentong

Tue 19/8

20:20-19:30

3 stops44h 10m

$719

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sun 7/9

10:15-09:15

1 stop26h 00m

Phnom Penh Pochentong

Mon 22/9

16:40-08:15

1 stop12h 35m

$742

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sun 7/9

22:10-17:25

1 stop22h 15m

Phnom Penh Pochentong

Mon 29/9

11:10-06:35

1 stop16h 25m

$756

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sat 2/8

11:20-11:35

2 stops27h 15m

Phnom Penh Pochentong

Thu 14/8

18:50-07:40

3 stops33h 50m

$788

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sat 15/11

10:45-08:25

2 stops25h 40m

$331

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney 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 Sydney to Phnom Penh

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

Use this chart to determine the optimal time to book a return flight from Sydney to Phnom Penh. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from Sydney to Phnom Penh, you should look to book at least 71 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 Sydney to Phnom Penh?

Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $524). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,054). 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 SYD to PNH?

Find hourly flight availability from Sydney to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 July 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Phnom Penh at midday. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the evening.

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

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

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

How much does it cost for a return flight from Sydney to Phnom Penh?

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. 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 Phnom Penh. Reviews last updated 10 July 2025.
Read through reviews of airlines operating flights from Sydney to Phnom Penh, such as Vietnam Airlines, Malaysia Airlines, andChina Eastern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Crew

8.1

Overall

7.5

Food

6.7

Entertainment

6.2

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.
Vietnam Airlines
7.5
Good
195 reviews
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Crew

8.1

Overall

7.5

Food

6.7

Entertainment

6.2

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.
Malaysia Airlines
7.4
Good
266 reviews
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Crew

8.1

Overall

7.5

Food

6.7

Entertainment

6.2

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.
China Eastern
7.2
Good
151 reviews
Vietnam Airlines
7.5
Good
195 reviews
Check prices

Comfort

7.5

Boarding

7.5

Crew

8.1

Overall

7.5

Food

6.7

Entertainment

6.2

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Phnom Penh. 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 Sydney to Phnom Penh round-trip?

    Currently priced at $742, Vietnam Airlines will fly you from Sydney to Phnom Penh and back. In addition to Vietnam Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Malaysia Airlines and China Eastern - these airlines can fly you to your destination from $756 and $788, respectively. Vietnam Airlines is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • Where are the most common stopover locations when flying from Sydney to Phnom Penh?

    Most of the time, Sydney to Phnom Penh flights that have stopovers will stop in Singapore. Singapore is followed by Hong Kong in terms of the most popular stopover location on flights from Sydney to Phnom Penh. Guangzhou sees the third most stopovers on flights from Sydney to Phnom Penh.

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be visited by traveling about 21.6 km, 16.9 km, and 17.3 km respectively from Singapore Changi. Those landing in Singapore looking to spend some time exploring during their stopover can hire a car for about $128 per day.

  • What are some popular points of interest to see during a stopover in Hong Kong?

    The majority of Hong Kong visitors spend their time at Hong Kong Disneyland, Hong Kong Heritage Discovery Centre, and Mid-levels Escalators. Those on a layover in Hong Kong interested in visiting Hong Kong Disneyland, Hong Kong Heritage Discovery Centre, or Mid-levels Escalators can do so by travelling 12.6 km, 25.8 km, and 24.5 km, respectively from Hong Kong Intl.

  • Where are the least popular stopover locations for Sydney to Phnom Penh flights?

    Sydney to Phnom Penh flights that have stopovers will least frequently stop in Ho Chi Minh City. Kuala Lumpur is the second least popular location for stopovers on flights from Sydney to Phnom Penh.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Phnom Penh 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 Sydney to Phnom Penh?

    Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $524). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,054). 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

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Fly from Sydney to Phnom Penh on these airlines

Choose from the following airlines for your flight from Sydney to Phnom Penh. Flights are based on user searches made on Cheapflights and were last updated on 10 July 2025.
Singapore Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong
Malaysia Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong
Vietnam Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong

Top 10 airlines flying from Sydney to Phnom Penh

Discover the top 10 airlines that operate flights from Sydney to Phnom Penh. 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 10 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$667Average$1,124FlexibilityNo cancel feeOn-time69%
Search China Southern flights
XiamenAirCheapest$687Average$814FlexibilityNo cancel feeOn-time49%
Search XiamenAir flights
Malaysia AirlinesCheapest$689Average$999FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest$701Average$829FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$718Average$1,005FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Philippine AirlinesCheapest$746Average$854FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China EasternCheapest$814Average$1,070FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Cathay PacificCheapest$912Average$1,288FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Virgin AustraliaCheapest$967Average$1,118FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Thai AirwaysCheapest$1,030Average$1,407FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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

Deals for Sydney to Phnom Penh flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Phnom Penh from Sydney 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 Sydney to Phnom Penh with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Phnom Penh flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Sydney to Phnom Penh and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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