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Cheap flights from Perth to Siem Reap, Cambodia from $287

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.
PER — SAI
17 Jul — 24 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Perth to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Perth to Siem Reap
Explore the most affordable flight options available from Perth to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 June 2026.

Sat 1/820:50
PER
-
SAI
1 stop13h 25m
Multiple Airlines
Wed 5/815:35
SAI
-
PER
1 stop11h 10m
Multiple Airlines
Deal found 13/6$627
Tue 28/705:35
PER
-
SAI
2 stops34h 15m
Multiple Airlines
Fri 28/815:35
SAI
-
PER
1 stop11h 10m
Multiple Airlines
Deal found 15/6$749
Thu 30/720:50
PER
-
SAI
1 stop13h 25m
Multiple Airlines
Mon 3/815:35
SAI
-
PER
1 stop11h 10m
Multiple Airlines
Deal found 14/6$788
Thu 30/705:35
PER
-
SAI
2 stops28h 40m
Multiple Airlines
Thu 6/815:35
SAI
-
PER
1 stop13h 15m
Multiple Airlines
Deal found 14/6$816
Fri 30/1017:30
PER
-
SAI
2 stops25h 35m
Multiple Airlines
Mon 16/1110:10
SAI
-
PER
1 stop17h 20m
Multiple Airlines
Deal found 16/6$822
Wed 15/717:20
PER
-
SAI
1 stop22h 30m
Multiple Airlines
Wed 22/719:10
SAI
-
PER
1 stop12h 45m
Multiple Airlines
Deal found 15/6$999

Find 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 June 2026.

Round-trip from

$627

One-way from

$287

Popular in

December

Cheapest in

November

Average price

$1,313
1/8-5/8
  • 1/8-5/8
  • 2 total stops
  • 24h 35m total
  • Perth to Siem Reap
Search Deals
15/11
  • 15/11
  • 1 total stop
  • 13h 40m total
  • Perth to Siem Reap
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($401 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($100 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Perth to Siem Reap 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 17 June 2026.
Use the filters below to find and compare flights from Perth to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 1/8

20:50-09:15

1 stop13h 25m

Siem Reap–Angkor Intl

Wed 5/8

15:35-03:45

1 stop11h 10m

$627

PerthSiem Reap

PER - SAI

PERSAI

Perth

Tue 28/7

05:35-14:50

2 stops34h 15m

Siem Reap–Angkor Intl

Fri 28/8

15:35-03:45

1 stop11h 10m

$749

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 30/10

23:10-15:00

1 stop16h 50m

Siem Reap–Angkor Intl

Mon 16/11

15:45-16:00

1 stop23h 15m

$766

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 30/7

20:50-09:15

1 stop13h 25m

Siem Reap–Angkor Intl

Mon 3/8

15:35-03:45

1 stop11h 10m

$788

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 30/7

05:35-14:50

3 stops34h 15m

Siem Reap–Angkor Intl

Thu 6/8

15:35-03:45

1 stop11h 10m

$821

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 2/7

10:35-08:45

1 stop23h 10m

Siem Reap–Angkor Intl

Tue 7/7

15:35-05:50

1 stop13h 15m

$1,221

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 2/7

10:35-18:05

2 stops32h 30m

Siem Reap–Angkor Intl

Tue 7/7

19:05-08:55

2 stops36h 50m

$1,364

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 3/7

10:35-18:05

2 stops32h 30m

Siem Reap–Angkor Intl

Tue 7/7

19:05-08:55

2 stops36h 50m

$1,364
Cheapest one-way
Fastest single journey

PerthSiem Reap

PER - SAI

PERSAI

Perth

Tue 10/11

00:45-09:20

1 stop9h 35m

$306

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sun 15/11

20:40-16:05

2 stops20h 25m

$372

Flights are sorted by cheapest return flights first.

Deals found on 14/6

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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, November is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $758). Flying from Perth to Siem Reap in December is currently the most expensive (average of $1,790). 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.

How much does it cost for a return flight from Perth to Siem Reap?

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 June 2026.
See what other customers who have flown with Singapore 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
8.2
Very Good
1,545 reviews
Check prices

Crew

8.6

Overall

8.2

Food

7.8

Entertainment

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,545 reviews
Singapore Airlines
8.2
Very Good
1,545 reviews
Check prices

Crew

8.6

Overall

8.2

Food

7.8

Entertainment

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

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 is the cheapest airline to fly 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 $721 on this airline. You may be able to fly from Perth to Siem Reap for 30% less than the average price by searching for this airline.

  • 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, November is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $758). Flying from Perth to Siem Reap in December is currently the most expensive (average of $1,790). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Perth to Siem Reap

Discover the top airline 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$721Average$961FlexibilityNo 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 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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