Cheap Flights from Perth (PER) to Phnom Penh (PNH)

Popular airlines from Perth Airport (PER) to Phnom Penh Intl. Airport (PNH)

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Frequently asked questions

How much does a flight from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) cost?
You can find cheap one-way flights and cheap return flights Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) with Expedia. Return flights typically cost between $705 and $5671. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
The cheapest month to fly from PER to PNH is when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
Enter PER to PNH and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
To find a cheap flight from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
The earliest flight from Perth (PER) to Phnom Penh (PNH) typically departs at around 12:10 AM local time, operated by Cathay Pacific. This service is seasonal and operates in April, May, June, July, August, and September. An early departure like this can help you maximize your time in Phnom Penh. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
The busiest day for flights from (PER) to Phnom Penh Intl. (PNH) is a Tuesday, with around 12 flights. This gives you plenty of options for your travel plans. Major airlines on this route include Singapore Airlines, Cathay Pacific, and Malaysia Airlines.
What are the most popular departure times for flights from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
When flying from Perth (PER) to Phnom Penh (PNH), the most popular departure times are in the early afternoon, from 12pm to 3pm. About 49% of passengers choose this time window. Major airlines like Qantas and Singapore Airlines operate flights during this period, making it a great option for those looking to travel after a leisurely morning.
How long does it take to fly from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
A flight from PER to PNH with a layover takes around 8 hours 30 minutes, with the route covering approximately 3,093 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
Business class seats are offered on the PER to PNH route. Airlines that offer business class service on this route include:

  • Singapore Airlines
  • Thai Airways International
  • Qantas Airways
  • Cathay Pacific
  • Malaysia Airlines

How do I earn miles on a Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) flight with Expedia?
It's easy to earn miles on a Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phnom Penh from PER (PER)?
If you're planning to travel to Phnom Penh from PER (PER), you can fly into Phnom Penh Intl. (PNH) Some flights may connect through major hubs like Changi (SIN), Tan Son Nhat Intl. (SGN), Kuala Lumpur Intl. (KUL) before reaching Phnom Penh. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) at the last minute?
Typically, booking a last minute flight from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) flight and hotel package?
Securing a Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.)?
If you booked your Perth, WA (PER) to Phnom Penh (PNH-Phnom Penh Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Perth
Destination airport
Phnom Penh Intl.
Distance
3093 mi

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Perth to Phnom Penh Flights

The cheapest times to fly from Perth to Phnom Penh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Perth to Phnom Penh are during the month of . You can find some of the cheapest flights from Perth to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Perth to Phnom Penh

Sunday is one of the best days to book for cheap flights from Perth to Phnom Penh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Perth to Phnom Penh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Perth to Phnom Penh in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Perth to Phnom Penh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Perth to Phnom Penh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Perth to Phnom Penh Flights

*Flight schedules are subject to change.

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