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Cheap flights from Phnom Penh to Perth from $1,618

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.
PNH — PER
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Phnom Penh to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Perth (PER). 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 12 September 2025.

Round-trip from

$2,042

One-way from

$1,618

Popular in

October

Cheapest in

June

Average price

$932
1/11-15/11
  • 1/11-15/11
  • 6 total stops
  • 78h 05m total
  • Phnom Penh to Perth
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15/11
  • 15/11
  • 3 total stops
  • 47h 00m total
  • Phnom Penh to Perth
Search Deals
High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($58 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Phnom Penh to Perth

Cheapest flights from Phnom Penh to Perth
Explore the most affordable flight options available from Phnom Penh to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Sat 1/1107:55PNH - PER
3 stops43h 05mMultiple Airlines
Sat 15/1120:30PER - PNH
3 stops35h 00mMultiple Airlines
Deal found 11/9$2,042
Sat 25/1008:30PNH - PER
3 stops42h 30mMultiple Airlines
Sat 1/1123:15PER - PNH
3 stops32h 15mMultiple Airlines
Deal found 10/9$3,023

Cheapflights Fare Finder

 
Customise your flight search to find flights from Phnom Penh to Perth 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 12 September 2025.
Use the filters below to find and compare flights from Phnom Penh to Perth that are best for you.

Fly from

Phnom Penh

Fly to

Perth

Route

Depart

Return

Price

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Sat 1/11

07:55-04:00

3 stops43h 05m

Perth

Sat 15/11

20:30-06:30

3 stops35h 00m

$2,042

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Mon 27/10

07:55-04:00

3 stops43h 05m

Perth

Sun 2/11

04:40-18:25

3 stops38h 45m

$2,144

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Sat 25/10

08:30-19:50

3 stops34h 20m

Perth

Sat 1/11

16:15-06:30

2 stops39h 15m

$5,424

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Sat 15/11

19:50-19:50

3 stops47h 00m

$1,618

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Mon 5/1

07:55-15:15

2 stops54h 20m

$8,665

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Thu 5/2

19:50-07:20

2 stops34h 30m

$9,052

Phnom PenhPerth

PNH - PER

PNHPER

Phnom Penh Pochentong

Tue 27/1

07:55-01:25

2 stops40h 30m

$9,085

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Best time to book a flight from Phnom Penh to Perth

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

What is the cheapest time of day to fly from PNH to PER?

Find hourly flight availability from Phnom Penh to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Phnom Penh to Perth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. 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 Perth. Reviews last updated 12 September 2025.
Get a feel of what it's like to fly with Singapore Airlines from Phnom Penh to Perth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,365 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Phnom Penh to Perth round-trip?

    Cheapflights users have booked flights from Phnom Penh to Perth round-trip from $1,329.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Phnom Penh to Perth (average of $286). Flying from Phnom Penh to Perth in December is currently the most expensive (average of $409). 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

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Mandurah
Scarborough
Fremantle
Rottnest Island

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Phnom Penh to Perth

Discover the top airline that operate flights from Phnom Penh to Perth. 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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,329Average$1,372FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Phnom Penh to Perth 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 Phnom Penh to Perth?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Phnom Penh to Perth.

Can Cheapflights find flights from Phnom Penh to Perth with no change fees?

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

Can Cheapflights notify me if prices for flights from Phnom Penh to Perth become cheaper?

Yes, Cheapflights offers price alerts on Phnom Penh to Perth flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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