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Cheap flights from Perth to Siem Reap, Cambodia from $402

PER — SAI
29 Nov — 6 Dec1
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

Thu 29/1000:45 -
1 stop20h 45m
Wed 18/1121:30 -
1 stop24h 00m
Deal found 25/10$810
Sun 1/1123:10 -
1 stop16h 40m
Sat 14/1115:35 -
1 stop11h 05m
Deal found 25/10$862
Mon 9/1123:10 -
1 stop16h 40m
Wed 18/1121:30 -
1 stop17h 55m
Deal found 25/10$867
Sun 1/1123:10 -
1 stop16h 40m
Fri 13/1115:35 -
1 stop11h 05m
Deal found 25/10$885
Sat 7/1123:10 -
1 stop16h 40m
Wed 18/1121:30 -
1 stop17h 55m
Deal found 25/10$888
Tue 10/1107:25 -
2 stops32h 25m
Wed 18/1121:30 -
1 stop17h 55m
Deal found 25/10$892
Thu 29/1000:45 -
1 stop17h 55m
Sat 14/1115:35 -
1 stop11h 05m
Deal found 25/10$909
Sun 1/1108:00 -
1 stop9h 05m
Wed 18/1121:30 -
1 stop17h 55m
Deal found 25/10$916
Mon 9/1123:10 -
1 stop16h 40m
Sat 21/1115:35 -
1 stop13h 15m
Deal found 25/10$932
Thu 29/1000:45 -
1 stop17h 55m
Fri 13/1115:35 -
1 stop11h 05m
Deal found 25/10$933
Mon 9/1123:10 -
1 stop16h 40m
Thu 19/1122:25 -
1 stop17h 00m
Deal found 25/10$936
Mon 2/1123:10 -
1 stop16h 40m
Thu 12/1122:25 -
1 stop17h 00m
Deal found 25/10$939

Find flight deals from Perth to Siem Reap

Round-trip from

$636

One-way from

$402

Popular in

January

Cheapest in

February

Average price

$847
7/2-20/2
  • 7/2-20/2
  • 3 total stops
  • 42h 45m total
  • Perth to Siem Reap
Search Deals
10/1-31/12
  • 10/1-31/12
  • 1 total stop
  • 11h 05m total
  • Perth to Siem Reap
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($300 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($105 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 5/11

00:45-20:30

1 stop20h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

$405

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Mon 16/11

20:50-14:15

2 stops18h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

$466

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Tue 17/11

07:25-14:50

2 stops32h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

$507

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 19/11

20:50-14:50

1 stop19h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

$528
Fastest return journey

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Tue 17/11

04:40-14:50

1 stop11h 10m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

$561

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 19/11

00:45-16:10

3 stops40h 25m

Siem Reap–Angkor Intl

Sun 29/11

21:30-22:30

1 stop24h 00m

$1,122

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 25/3

04:40-14:50

1 stop11h 10m

Siem Reap–Angkor Intl

Fri 23/4

10:00-19:50

1 stop8h 50m

$1,131

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Fri 20/11

17:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Tue 1/12

19:05-16:25

2 stops44h 20m

$1,162

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 19/11

00:45-16:10

3 stops40h 25m

Siem Reap–Angkor Intl

Tue 1/12

20:30-22:30

2 stops49h 00m

$1,294

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Mon 9/11

17:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Sat 21/11

19:05-16:25

2 stops44h 20m

$1,429

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 11 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

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, February is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $723). Flying from Perth to Siem Reap in January is currently the most expensive (average of $1,845). 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?

Airfare is below average for this route at the moment.

Perth to Siem Reap flights typically cost between $754 and $851 in February.
The cheapest return price found within the last 5 days was $636 on Multiple Airlines (7 Feb–20 Feb).

Reviews of airlines servicing Siem Reap

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
1,631 reviews
Check prices

Entertainment

8.1

Crew

8.6

Food

7.8

Comfort

8.0

Boarding

8.3

Overall

8.2

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
1,631 reviews
Singapore Airlines
8.2
Very Good
1,631 reviews
Check prices

Entertainment

8.1

Crew

8.6

Food

7.8

Comfort

8.0

Boarding

8.3

Overall

8.2

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

  • How long is the flight from Perth to Siem Reap?

    A quick flight from Perth to Siem Reap can take about 25h 35m. Vietnam Airlines provides one of the quickest options available for as low as $1,162. There are 5189 km between Perth and Siem Reap. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 $723 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, February is the cheapest month in which you can book a flight from Perth to Siem Reap (average of $723). Flying from Perth to Siem Reap in January is currently the most expensive (average of $1,845). 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

Top airline flying from Perth to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$723Average$964FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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

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