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Cheap flights from Perth to Siem Reap, Cambodia

PER — SAI
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Perth to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Perth (PER) to Siem Reap (SAI). 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 17 October 2025.

Popular in

January

Cheapest in

June

Average price

$884
Highest demand for flights based on searches. 26% potential increase in price ($530 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($81 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Best time to book a flight from Perth to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Perth 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 Perth to Siem Reap

What is the cheapest month to book a flight from Perth to Siem Reap?

Currently, May is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $590). Flying from Perth to Siem Reap in December is currently the most expensive (average of $1,477). 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.

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

Find hourly flight availability from Perth to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 October 2025.

A simple way to save on the total cost of your ticket is to fly from Perth to Siem Reap in the afternoon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at midday.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. 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 Siem Reap. Reviews last updated 17 October 2025.
See what other customers who have flown with Singapore Airlines and Vietnam Airlines from Perth to Siem Reap have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,382 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Vietnam Airlines
7.5
Good
203 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Related info for your journey

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

  • What are the cheapest airlines flying from Perth to Siem Reap round-trip?

    Our cheapest airline available from Perth to Siem Reap is Singapore Airlines. Our recent data shows that you can find tickets from as low as $704 on this airline. An additional option worth looking into is Vietnam Airlines, starting at $705. You may be able to fly from Perth to Siem Reap for 26% less than the average price by searching for these airlines.

  • Can I find deals for flights from Perth to Siem Reap that include hotel bookings?

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

  • How can I find direct flights from Perth to Siem Reap?

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

  • Can I find deals for business class flights from Perth to Siem Reap?

    Yes. Cheapflights offers flight deals from Perth to Siem Reap 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 Perth to Siem Reap?

    Currently, May is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $590). Flying from Perth to Siem Reap in December is currently the most expensive (average of $1,477). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Perth to Siem Reap

Discover the top 2 airlines that operate flights from Perth to Siem Reap. 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$704Average$928FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest$705Average$872FlexibilityNo cancel feeOn-time81%
Search Vietnam 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 Perth to Siem Reap?

Cheapflights helps you search for flights from Perth to Siem Reap via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Perth to Siem Reap?

Cheapflights simply makes it quick and affordable to book flights from Perth to Siem Reap by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Perth to Siem Reap with no change fees?

Yes! Cheapflights helps users easily find flights from Perth to Siem Reap with no change fees.

Can Cheapflights notify me if prices for flights from Perth to Siem Reap become cheaper?

Yes! Start tracking prices for Perth to Siem Reap flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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