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Cheap flights from Perth to Siem Reap

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

Cheap flight deals from Perth to Siem Reap

Keep the following information in mind while searching for Perth to Siem Reap flight deals. Data was 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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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 Region of Siem Reap?

Currently, May is the cheapest month in which you can book a flight from Perth to Region of Siem Reap (average of $590). Flying from Perth to Region of 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 SI?

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.

It’s optimal to fly from Perth to Region of Siem Reap in the afternoon. By choosing this option you can save up to 32% on the cost of your flight, compared to 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. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.0

Food

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Singapore Airlines
8.1
Very Good
1,382 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.0

Food

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Vietnam Airlines
7.5
Good
203 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.0

Food

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

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 airport do you fly from for flights from Perth to Siem Reap?

    Located just 10.2 km from the city centre, Perth (PER) is the airport most travellers will use when flying to Siem Reap from Perth.

  • 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 Region of Siem Reap?

    Currently, May is the cheapest month in which you can book a flight from Perth to Region of Siem Reap (average of $590). Flying from Perth to Region of 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

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Alternative routes for Perth to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
Perth to Phnom Penh flights

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 makes it easy to find Perth to Siem Reap flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Perth to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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, Cheapflights offers price alerts on Perth to Siem Reap 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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