PNH - SYD

Find Cheap Flights from Phnom Penh to Sydney

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Sydney, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Phnom Penh to Sydney (PNH-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Phnom Penh to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Phnom Penh to Sydney

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PNH-SYD
11317 kmmulti-stop
Multiple Airlines Logo
SYD-PNH
11317 kmmulti-stop
Multiple Airlines
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Everything you should know

When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 18% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
Multiple Airlines
Thu 30/10
PNH - SYD • multi-stop
Cheapest one-way flight
Multiple Airlines
Thu 30/10
PNH - SYD • multi-stop
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Booking Insights

KAYAK's insights & trends for Phnom Penh to Sydney flights

Get data-powered insights and trends into flights from Phnom Penh to Sydney to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Phnom Penh to Sydney?

The average price of all round-trip flights from Phnom Penh to Sydney clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Sydney on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Phnom Penh to Sydney. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phnom Penh to Sydney is October, where tickets cost $1,075 (return) on average. On the other hand, the most expensive months are January and February, where the average cost of round-trip tickets is $1,651 and $1,525 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phnom Penh to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phnom Penh to Sydney, you should book around 4 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly (15% more expensive on average)

When to book flights from Phnom Penh to Sydney

Are your dates flexible? Find out the best times to travel from Phnom Penh to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Phnom Penh to Sydney

  • Which aircraft models fly most regularly from Phnom Penh to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phnom Penh to Sydney?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Phnom Penh and Sydney, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Phnom Penh to Sydney, Singapore Airlines or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Phnom Penh to Sydney are Singapore Airlines and Cathay Pacific. With an average price for the route of $1,584 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,215 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Phnom Penh to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phnom Penh to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phnom Penh to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Phnom Penh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phnom Penh to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Phnom Penh with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phnom Penh to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Phnom Penh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Phnom Penh to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phnom Penh to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1388 reviews
8.0Comfort
8.6Crew
8.3Boarding
7.7Food
8.0Entertainment
Airline reviews

Best airline I think. No problems with anything. Crew were great, no problems with the airline food and entertainment and a smooth flight.

10.0 ExcellentJill, Oct 2025MXP - SIN
Read more Singapore Airlines reviews

Best airline I think. No problems with anything. Crew were great, no problems with the airline food and entertainment and a smooth flight.

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

It was very good experience on board to Sydney with SQ.

Leg room wasn't that great. Other than that it was a good flight

Issues: 1) the charging issue as described in my previous survey 2) when I requested diet coke during the breakfast time, it is not available. Why? I can't drink diet coke in the morning? 3) when I tried to transfer to this flight, its gate information was not available to me?

Chicken pieces were too big with pasta. Need to be smaller.

They downgraded me from premium economy to regular economy and me had 2 major lay over and had to have an emergency landing due to engine failure mid flight Don’t use them worst experience I have ever had still dealing with the trauma

The only problem was my connecting flight to Chiang Mai on Hong Kong express that I booked through Cathay Pacific was canceled and I was never told about it. I was rescheduled on a flight 10 hours later. Very long day at rgr airport in Hing Kong after a 13 hour flight but that's OK, I understand things change but I think I should have been told. I would have prepared myself for a long wait. Great flights all around though. Thank you

Boarding at the airport was not well managed. Otherwise, had a good flight sitting in the first row (which I paid for). Crew was pretty friendly, and flight was smooth.

There was a flight attendant named Angela who took care of me because I injured my foot badly right before the flight. Because of the service she provided I will always fly Cathay.

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Check in process at the kiosk, crew in flight and overall comfort was good. Food selection could have been better. Flight from Hong Kong to Los Angeles did not have any vegetarian main course option, it was either sea food or chicken. Being a vegetarian I could only eat yogurt and fruit. Most international flights have one vegetarian main course dish which I found missing in Cathay Pacific menu.

Great. Efficient boarding process with the face recognition. Plenty of cabin space for luggage.

Lovely staff, comfortable seats. Transit time was short but they had great processes in place to get us on the plane.

For a domestic flight, seats are ok, but fir us as tall dutchies, the legroom is too small. However, for a short and affordable flight, is not a big problem. Staff is still very nice and a complementary water very welcome.

2 hours delay, time changes started already 2 days before the flight

Average, not more then that. Cannot compete with Singapore Airlines

I bought the front row seat and made and early online check in but they changed my seat to the back row without prior notice. The inflight meal was too poor, only a piece of small finger food. The boarding is a disaster, everyone is stuffed in a bus in chaos. Doesnt worth the money at all.

Poor. Flight was delay without prior notice. Poor boarding. Poor meal service. Plane was dirty and smelly. Does not worth the money.

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate. I had to use a paper boarding pass as they do not like electronic boarding passes. I scanned my electronic pass, but the gate agent requested the paper pass. Luckily I had a paper pass, although my electronic pass worked and when the paper pass was scanned it stated I was already on board.

I am a bit upset with the check in counter, I signed up a wheelchair for my mom so they wouldn’t grant us her boarding pass. We got to the airport a couple of hours earlier and they had us wait and no one ever gave us her boarding pass or the wheelchair, I had to go back and complain when it was already time for our flight to board. Since we got their earlier, I could have easily pushed my mom myself and we could have relaxed and went to the lounge while waiting… when I finally got someone to help us he couldn’t explain how and why they dismissed us in the first place.

Was on holiday with my partner and we booked with Vietnam airlines as it not meant to be a budget airline. They separated us and made us sit at either end of the plane. Not the way I planned to spend my time on my holiday separate from my loved one. How can they separate people on the same booking. They know we are together and spending quality time together.

I had sometimes my trips with Vietnam Airlines and I like it 😊

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

Ground crew Tried to charge us 1200 RMB -about $160 for Carry on when checking in Wuhan, they say the suitcase is too large, but it’s the standard samsonite carry out suitcase purchased at Costco and we had no issue when we travelled to China just a month ago, same airline. They Wuhan ground crew even threatened that when we layover in Xiamen, they will charge even more. Very unprofessional and caused a lot of stress. The airline really needs to investigate it.

Never got to go because of i correct information while attempting to check in

They gave incorrect visa information causing me to purchase another flight. Only to find out later there was something that could be done to work around it.

I recently flew with Xiamen Airlines and was thoroughly disappointed with the experience. To start, the seats were incredibly uncomfortable. They were cramped with minimal legroom, making it nearly impossible to find a comfortable position during the flight. This was exacerbated by the poor seat padding, which left me with a sore back and neck by the end of the journey. The food provided was another major letdown. The meals were bland and unappetizing, and it was clear that little effort was put into the quality or presentation. Even the snacks were subpar, and there were limited options for those with dietary restrictions. The airport transfer experience was terrible. The airline’s ground staff were unhelpful and disorganized, leading to long waits and confusion. This was especially frustrating when I was already tired from the uncomfortable flight. The process was poorly managed, making the entire experience stressful and inconvenient. Lastly, the in-flight entertainment was mediocre at best. The selection of movies and TV shows was outdated, and the screens were small and low-quality. The system also experienced frequent glitches, making it difficult to enjoy even the limited options available. Overall, my experience with Xiamen Airlines was far from satisfactory. From the uncomfortable seats and bad food to the terrible airport transfer experience and mediocre entertainment, I would not recommend flying with them.

The Jakarta flight was better.. We got off the plane fast. LAX to Xiamen was a slow exit. It took half and hour to disembark.

I was not allowed to board the plane if I did not buy a forward ticket after Indonesia. They said the Indonesian government would fine the airline. This was bullshit. In Jakarta immigration did not ask for this at all. I'm trying to refund the ticket. I was put in a middle seat and I asked to be put in an side seat. They wanted $45. I said NO. Later I was put in an side sest for free. On the second plane they put me in a middle seat and when I complained. They put me in the back with three empty seats. I was able to sleep. The food was okay and I got extra portions when asked. The lack of WIFI at Xiamen airport was a pain, but that's because of the Chinese government banning foreign browsers. Xiamen gets 3 out of 5. The cost was $503: LAX to Jakarta. A bargain, but you get what you pay for.

Free meals on all flights in economy. The 737´s don’t have screens so it’s a bummer. But the selection on 787´s is wide

The plane was small and a little stuffy inside the plane.

Going to Xiamen they did not offer any wine and basically offered two food choices in tin trays. Something you would expect on a domestic flight in China not a $10k business class flight. The flight attendant admitted they also stopped paying for satellite Wi-Fi; which they used to offer and now don't - without apology. Normally I am a huge fan of a non-stop but the difference between Japanese or US carriers is a large one and well worth a stop in Korea or Japan rather than pay double for no amenities at all. The plane is nice, but the experience was below par.

Once on board, everything is perfect. The young and pretty flight attendants warmly welcome each passenger and demonstrate excellent service attitudes. As passengers board one after another, the flight attendants begin to inquire about our meal preferences. I requested to see a wine list and choose a suitable red wine. She replied that there were no menus or wine lists, but she would take a photo of the red wine options on her phone and show me later. After lunch, the flight attendants began to ask about dinner arrangements. It turns out that there were only three options for dinner: seafood, chicken, and beef, exactly the same as lunch.

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

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