PNH - SYD

$369 Find Cheap Flights from Phnom Penh to Sydney

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 Sydney 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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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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Cheap Flight Deals 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.

Recent return flight deals from Phnom Penh to Sydney

KAYAK's recommended return flight deals from the most popular airlines that fly from Phnom Penh to Sydney.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
12:20 - 09:20PNH-SYD
18h 00m1 stop
 Logo
21:15 - 11:20SYD-PNH
17h 05m1 stop
Sun, 11 May - Sat, 24 May
 Logo
11:55 - 19:30PNH-SYD
28h 35m2 stops
 Logo
09:15 - 19:35SYD-PNH
13h 20m1 stop
Wed, 28 May - Wed, 4 Jun
Philippine Airlines Logo
01:15 - 09:00PNH-SYD
27h 45m1 stop
Philippine Airlines Logo
11:35 - 00:15SYD-PNH
16h 40m1 stop
$798Philippine Airlines
Find Deal
Tue, 21 Oct - Fri, 31 Oct
XiamenAir Logo
12:20 - 09:20PNH-SYD
18h 00m1 stop
XiamenAir Logo
11:25 - 10:50SYD-PNH
26h 25m2 stops
$840XiamenAir
Find Deal
Sun, 11 May - Sat, 24 May
XiamenAir Logo
12:20 - 09:20PNH-SYD
18h 00m1 stop
XiamenAir Logo
11:25 - 11:20SYD-PNH
26h 55m1 stop
$846XiamenAir
Find Deal
Fri, 23 May - Fri, 30 May
Philippine Airlines Logo
01:15 - 08:00PNH-SYD
27h 45m1 stop
Philippine Airlines Logo
10:10 - 00:15SYD-PNH
17h 05m1 stop
$1,089Philippine Airlines
Find Deal
Sat, 10 May - Sat, 24 May
Cathay Pacific Logo
11:25 - 06:10PNH-SYD
15h 45m1 stop
Cathay Pacific Logo
21:50 - 10:15SYD-PNH
15h 25m1 stop
$1,217Cathay Pacific
Find Deal
Wed, 7 May - Thu, 22 May
Cathay Pacific Logo
18:30 - 21:25PNH-SYD
23h 55m2 stops
Cathay Pacific Logo
21:50 - 10:15SYD-PNH
15h 25m1 stop
$1,267Cathay Pacific
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Vietnam Airlines Logo
20:55 - 08:15PNH-SYD
32h 20m2 stops
Vietnam Airlines Logo
10:15 - 13:00SYD-PNH
29h 45m3 stops
$1,371Vietnam Airlines
Find Deal
Wed, 4 Jun - Fri, 13 Jun
Vietnam Airlines Logo
20:45 - 08:15PNH-SYD
32h 30m1 stop
Vietnam Airlines Logo
10:15 - 13:00SYD-PNH
29h 45m3 stops
$1,378Vietnam Airlines
Find Deal
Wed, 27 Aug - Tue, 2 Sep

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 December, where tickets cost $1,192 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $1,829 and $1,561 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 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

September

Cheapest flight

$369
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Phnom Penh to Sydney

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

  • What is the cheapest flight from Phnom Penh to Sydney?

    In the last 3 days, the lowest price for a flight from Phnom Penh to Sydney was $236 for a one-way ticket and $420 for a return.

  • 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?

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

  • Which is the best airline for flights from Phnom Penh to Sydney, Vietnam Airlines or China Southern?

    The two airlines most popular with KAYAK users for flights from Phnom Penh to Sydney are Vietnam Airlines and China Southern. With an average price for the route of $1,358 and an overall rating of 7.6, Vietnam Airlines is the most popular choice. China Southern is also a great choice for the route, with an average price of $1,063 and an overall rating of 7.5.

  • 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.

See more FAQs

Top 4 airlines serving 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 1290 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.9Comfort
7.7Food
Airline reviews

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

10.0 ExcellentAnonymous, Mar 2025LAX - NRT
Read more Singapore Airlines reviews

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

Excelent service and plenty of food and drinks during the flight. Flight crew very attentive to our needs. Leg room between rows are very disappointing.

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.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

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

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

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.

The plane had a technical problem it would delayed 10 hours but they just gave limited information and put all passengers into the Miracle lounge. Ther were not enough chairs and so on.

Ensure there is a choice of food for all customers and also enough food

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

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!

So so, crew was overly professional and lacks human touch. Equipment is very old, especially the HKG-PVG CX366 flight. That plane along with its decor must have twenty years of history, or at least I had that impression.

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

I have a Peanut Allergy and the Steward staff were very accommodating in ensuring my safety as my allergy is life threatening. Very professional and so vested in their profession.

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

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

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

Everything was fine and I have no complaints or things to note.

The flight was delayed for 30 mins. The overall experience was 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 Sydney

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