$295 Find Cheap Flights from Phnom Penh to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phnom Penh to Australia departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Best Australia Flight Deals from Phnom Penh

Cheapest return prices found by our users on KAYAK in the last 72 hours

Sydney
Sydney1 stop$714
Melbourne
Melbourne1 stop$664
Adelaide
Adelaide2 stops$887
Sydney
Sydney1 stop$714
Melbourne
Melbourne1 stop$664
Adelaide
Adelaide2 stops$887

Cheap Flight Deals from Phnom Penh to Australia (PNH-AU0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Phnom Penh to Australia 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.

Recent return flight deals from Phnom Penh to Australia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Phnom Penh to Australia.
Discover the best prices for you by selecting your travel dates on KAYAK.
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12:20 - 09:35PNH-MEL
18h 15m1 stop
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07:00 - 19:35MEL-PNH
15h 35m1 stop
Sat, 10 May - Fri, 30 May
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16:40 - 20:20PNH-MEL
24h 40m2 stops
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21:30 - 17:25MEL-PNH
22h 55m3 stops
Wed, 2 Jul - Mon, 14 Jul
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11:55 - 20:15PNH-MEL
29h 20m2 stops
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13:00 - 18:15MEL-PNH
32h 15m2 stops
Fri, 16 May - Sat, 16 Aug
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11:55 - 20:20PNH-MEL
29h 25m2 stops
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21:30 - 18:15MEL-PNH
23h 45m2 stops
Wed, 2 Jul - Mon, 14 Jul
Cathay Pacific Logo
11:25 - 08:40PNH-SYD
18h 15m1 stop
Cathay Pacific Logo
06:00 - 10:15SYD-PNH
31h 15m2 stops
$1,274Cathay Pacific
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Cathay Pacific Logo
11:25 - 10:25PNH-SYD
20h 00m2 stops
Cathay Pacific Logo
11:30 - 17:20SYD-PNH
32h 50m2 stops
$1,297Cathay Pacific
Find Deal
Thu, 18 Sep - Sun, 28 Sep
Vietnam Airlines Logo
16:40 - 08:15PNH-SYD
12h 35m1 stop
Vietnam Airlines Logo
10:15 - 13:00SYD-PNH
29h 45m3 stops
$1,338Vietnam Airlines
Find Deal
Tue, 1 Jul - Mon, 15 Sep
Vietnam Airlines Logo
20:55 - 22:15PNH-MEL
22h 20m1 stop
Vietnam Airlines Logo
00:30 - 21:40MEL-PNH
24h 10m1 stop
$1,422Vietnam Airlines
Find Deal
Wed, 2 Jul - Sun, 13 Jul
Singapore Airlines Logo
09:35 - 07:25PNH-ADL
43h 20m1 stop
Singapore Airlines Logo
17:35 - 17:40ADL-PNH
26h 35m1 stop
$1,671Singapore Airlines
Find Deal
Mon, 12 May - Sun, 18 May
China Southern Logo
15:35 - 19:20PNH-MEL
24h 45m1 stop
China Southern Logo
10:20 - 14:30MEL-PNH
31h 10m1 stop
$3,710China Southern
Find Deal
Thu, 22 May - Thu, 12 Jun
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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 time of day to fly to Australia?

The average price for all round-trip flights from Phnom Penh to Australia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Australia is generally in the morning, when retur flights cost $820 on average. Morning departures are around 17% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,136.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Australia, 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 Australia is December, when tickets cost $1,190 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of return tickets is $1,825 and $1,557 respectively.

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

The average price of all round-trip flights from Phnom Penh to Australia clicked on KAYAK for each day over the last 12 months.
For Phnom Penh to Australia, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Australia back to Phnom Penh, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

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 Australia, 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 Australia, you should book around 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

January

High season

December

Cheapest flight

$295
Best time to beat the crowds but there is an average 39% increase in price.
Most popular time to fly (11% more expensive on average)
Flight from Phnom Penh to Perth

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.

Top 5 airlines serving 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.
8.1
Singapore AirlinesOverall score based on 1292 reviews
8.6Crew
8.2Boarding
7.9Comfort
8.0Entertainment
7.7Food
Airline reviews

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

10.0 ExcellentSailesh, Apr 2025SIN - AMD
Read more Singapore Airlines reviews

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.

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.

Food could have been better. Too many passengers getting up and down all the time.

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

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

I was a member of Krisflyer for ten years, but my last flight to Tokyo was a disaster. I had to stand in line for four hours before check-in because they were late opening the counter, and there were more than 50 people behind me. The plane was extremely small, and the food could have been better. When I dropped off my stroller before boarding the plane, I expected to receive it upon exiting for my transfer. However, they returned the stroller to the checked baggage because they said I was late getting off the plane. Of course, I was late; they assigned me a seat at the back of the aircraft, and I was traveling with a baby! The worst part was when I arrived in Jakarta. They damaged my stroller and refused to approve my claim, so I had to pay for stroller rental because of the damage they caused. I don’t know what happened to Singapore Airlines, but I felt like I was flying with a budget airline.

Service excellent would chose Singapore airlines as my first choice

The staff were amazing and very kind. The seats recline a little too far back and are up close when sitting behind.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

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.

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate.

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 😊

The check-in process was great, and I cannot remember the name of the supervisor, but he was good and told us about the transit process very correctly and efficiently and kindly. We were given down access and the overall process was very efficient.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Worst experience I have ever had with any airline in over 25 years.

very professional and very attentive to my Special Needs as I required a Wheel Chair and assistance to board

Very noisy and careless crew on this overnight flight. They should understand customers want to sleep

Highly impressive. On time. Smooth and fast boarding and disembarkment. Really great service

When comes to Taiwan airlines China airlines is the best rest are pure trash

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Horrible. No good food. Baggage missed to onboard and came after a day. No support to compensate the delay. Customer care cannot see the status of the complaint. No reply of the email.

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

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

The back of the chair - premium economy could not move back - not worth the price

It was okay. Boarding the staff made you feel rushed like we were late or something

It was great. The staff were so nice and helpful the food was great and they always made sure I was okay. As a foreigner I was worried about the language barrier but it was absolutely no issues. I highly recommend

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

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