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Cheap Flights from Phnom Penh to Australia

Cheapest return prices found by our users on KAYAK in the last 5 days
Sydney
Sydney1 stop$777
Adelaide
Adelaide2 stops$1,181
Perth
Perth1 stop$662
Sydney
Sydney1 stop$777
Adelaide
Adelaide2 stops$1,181
Perth
Perth1 stop$662
Booking Insights

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

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

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

The cheapest month for flights from Phnom Penh to Australia is December, when tickets cost $1,210 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of return tickets is $2,063 and $1,609 respectively.

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

To get a below-average price on a flight from Phnom Penh to Australia, you should book around 3 weeks before departure, which saves you about 27% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low season

January
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 13% lower on average.

FAQs - booking Australia flights

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

    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 Australia.

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

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

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

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

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

    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 from Phnom Penh to Australia 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 Australia

 
Need help choosing which airline to fly with from Phnom Penh to Australia? 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.
8.2
Singapore AirlinesOverall score based on 1585 reviews
8.7Crew
8.0Comfort
8.3Boarding
8.1Entertainment
7.8Food
Airline reviews

a longer gap btw the supper and breakfast would have been better - felt like the sleep was way too fragmented on this red eye flight

10.0 ExcellentRyan, July 2026
Read more Singapore Airlines reviews

a longer gap btw the supper and breakfast would have been better - felt like the sleep was way too fragmented on this red eye flight

I loved the full Taylor Swift selection but felt that the other selections were limited, didn’t span the popular music eras nor a wide enough range of music genres. BUT the seat and bed were GREAT (it was wide, long enough, had great storage, firm enough to uphold body postural comfort). Outstanding crew and really great food - gourmet innovative dim sum breakfast so different from the boring standard fare offered by many other business class products.

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

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

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

Fantastic patience when one of the passengers behind me was an absolute horrible, horrible person and the girls just kept smiling and doing their job with patience and kindness. Well, done to the crew.

Didn't like much at all Nowhere near enough legroom, narrow seats. Aisles not wide enough for safe food trolley access and husband had his knee hit cos not enough leg room. Would take a lot to convince us to fly Singapore Airlines again which is a pity cos it was always our go-to airline

Once again the meal served was delicious - we got chicken rice

Transfer within the same terminal and lots of facilities at the airport.

Very slow check in. Food poor and some of the special meals offered were not available. Luggage then didnt arrive and still waiting for news 48 hours later

Problems with entertainment system eventually rectified. Cabin crew attentive and polite but a bit absent minded when it came to remembering requests, salt, sugar etc.

I didn't see any flight attendants offer coffee or green tea. There was regular drink service but after a short meal was served didn't notice that happening.

Few vegetarian food options. Incorporating one per meal service would be best and captures a wider audience than just vegetarians (individuals with religious meat restrictions can also eat vegetarian).

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

Well- trained, cheerful onboard staff. Business class seating and storage were excellent. Outstanding range of food choices, though quality ranged from just OK (seasonal rice and beef dish) to outstanding ( congee and soup noodles with beef brisket). But what can you expect; it's on a plane. I couldn't figure out the remote control, but touch screen worked well. My wife and I (in our 60s), didnt find much to watch from the Entertainment choices. We mostly watched the flight maps. The bedding did the job but is unwieldy and ends up in a clump, with one-third falling on the floor.

I had high expectations but met with a below average experience. I hope the Airline will take a notice and improve.

Excellent service provided the flight crew. Food and drinks were very good.

I was amazed at how clean Cathay Pacific planes were compared to our US domestic airlines. Everything was great all but the food service I was just okay with. Shorter flights with other airlines usually provided more meals and snacks that I have been on. Almost a 16 hour flight just two meals and no snacks with Cathay Pacific. Even ran out of what I wanted for one of them. Other than that top notch!

There is very little in the title" Premium" in the Economy experience with Cathay, Melbourne to Hong Kong. The seats are uncomfortable and the cabin with outdated 1990's decor and trim. The food service was sloppy and the leg room providing little to no advantage over regular economy seating. Infact, the Sunday flight was not fill occupancy and I would have done better saving the significant additional costs for the PREMIUM ticket and taken advantage of the seating. If you are a regular premium economy traveler of EMIRATES expecting the same experience on CATHAY, you will be disappointed. Emirates far superior.

The aircraft was slightly newer but the food was very bad. Bland and uninteresting. Nothing special at all.

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

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.

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!

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

No wheelchair service at all ( I did request that service and also purchased the priority assistant bundle) , what a waste of money

Never got the wheelchair service when my parents arrived at LA . My mom was 74 , also my dad was 84 years old, both don’t speak English. I double checked with the front desk at Phoenix airport, making sure that they will be taking care of.

Had some luggage loading delays but it was still a good experience

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

1. I got very poor check in experience with the counter lady . This is the first airline I ever experienced that no combine check in weight allow . Even we have 4 of us but weight counter by piece . So we wasted lot of time argue and repack . This is super crazy 2. Next I left my Samsung tablet on the plane . And I started to escalate and finally spoke to southern airline lost and found in Malaysia and the amazing answer she give is : system nothing found and please try to call southern airline in china 🧐 . I have been flying many other airlines but this is my first encounterment with such irresponsible airline response and no empathy given to customer . My feeling is nobody bother whether how customer like me feel and I’m just too small for the management to take note .

The flight was okay it was the kayak customer service that was poor, I have been trying to change my name on my flight ticket 3 days before my flight and nothing got done about it even tho I messaged so many times and phoned, all I got in return was that is was being processed and still to this day nothing has been done about it, I think it’s disgusting and un needed stress to the trip.

The crews were very professional and courteous. Pleasant flight and thank you!

Flights were delayed, Food was good but only 1 meal instead of 2.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

Service / food has to be much better. Staff were not very attentive to requests. Requested for a second serve of coke and got a weird look back from the host! Was also told they don’t have extra water bottles when I requested for one before sleep! Dinner time food was very minimum and average.

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

Delayed, not enough information. Had to ask for refreshments, crew could have been more proactive

Entertainment system was too old, crew were unorganised during boarding

No recognition for one World Emerald member. Business class seat has flat bed

Prompt and efficient boarding. New MH-awards streaming worked first time on my personal device.

Originally I booked this flight in Business Class seats, but few weeks prior to departure they downgraded our ticket to Premium Economy class because they change the type of airplane but refused to compensate any difference in pricing. That is totally unfair practice to treat a business class costumer. The food on the flight is just OK and so is the service. The boarding is a mad house, you have no idea which line is for economy or sky priority class, unless you go to the front of the line to find out.

All good except with the new restrictions on using auxiliary power banks during the flight, business class really should have power access.

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.

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

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 Australia

Information on your arrival and departure airports