Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Perth to Siem Reap from $469

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Perth to Siem Reap departing on 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Perth to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
16:55 - 15:10PER  Perth-SAI Siem Reap–Angkor Intl
23h 15m1 stop Singapore Changi
Singapore Airlines Logo
10:45 - 00:05SAI  Siem Reap–Angkor Intl-PER Perth
12h 20m1 stop Singapore Changi
$813Singapore Airlines
Thu, 1 Oct - Fri, 30 Oct
Singapore Airlines Logo
16:55 - 15:10PER  Perth-SAI Siem Reap–Angkor Intl
23h 15m1 stop Singapore Changi
Singapore Airlines Logo
10:45 - 00:05SAI  Siem Reap–Angkor Intl-PER Perth
12h 20m1 stop Singapore Changi
$815Singapore Airlines
Thu, 1 Oct - Fri, 30 Oct
Singapore Airlines Logo
06:25 - 15:10PER  Perth-SAI Siem Reap–Angkor Intl
9h 45m1 stop Singapore Changi
Singapore Airlines Logo
10:30 - 05:10SAI  Siem Reap–Angkor Intl-PER Perth
17h 40m1 stop Singapore Changi
$845Singapore Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
20:50 - 09:15PER  Perth-SAI Siem Reap–Angkor Intl
13h 25m1 stop Kuala Lumpur Intl
Multiple Airlines Logo
19:05 - 16:25SAI  Siem Reap–Angkor Intl-PER Perth
44h 20m2 stops Hanoi Noibai Ho Chi Minh City
$1,012Multiple Airlines
Thu, 1 Oct - Fri, 30 Oct
Multiple Airlines Logo
20:50 - 14:50PER  Perth-SAI Siem Reap–Angkor Intl
19h 00m1 stop Kuala Lumpur Intl
Multiple Airlines Logo
19:05 - 16:25SAI  Siem Reap–Angkor Intl-PER Perth
44h 20m2 stops Hanoi Noibai Ho Chi Minh City
$1,035Multiple Airlines
Thu, 1 Oct - Fri, 30 Oct
Multiple Airlines Logo
16:20 - 09:00PER  Perth-SAI Siem Reap–Angkor Intl
17h 40m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
19:05 - 17:10SAI  Siem Reap–Angkor Intl-PER Perth
45h 05m3 stops Hanoi Noibai Da Nang Singapore Changi
$1,039Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
VietJet Air Logo
10:35 - 18:05PER  Perth-SAI Siem Reap–Angkor Intl
32h 30m2 stops Ho Chi Minh City Hanoi Noibai
VietJet Air Logo
19:05 - 16:25SAI  Siem Reap–Angkor Intl-PER Perth
44h 20m2 stops Hanoi Noibai Ho Chi Minh City
$1,078VietJet Air
Thu, 1 Oct - Fri, 30 Oct
VietJet Air Logo
10:35 - 18:05PER  Perth-SAI Siem Reap–Angkor Intl
32h 30m2 stops Ho Chi Minh City Hanoi Noibai
VietJet Air Logo
19:05 - 16:25SAI  Siem Reap–Angkor Intl-PER Perth
44h 20m2 stops Hanoi Noibai Ho Chi Minh City
$1,141VietJet Air
Thu, 1 Oct - Fri, 30 Oct
Multiple Airlines Logo
16:20 - 09:00PER  Perth-SAI Siem Reap–Angkor Intl
17h 40m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
15:35 - 17:10SAI  Siem Reap–Angkor Intl-PER Perth
24h 35m2 stops Kuala Lumpur Intl Singapore Changi
$1,154Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
20:40 - 09:20PER  Perth-SAI Siem Reap–Angkor Intl
13h 40m1 stop Kuala Lumpur Intl
Multiple Airlines Logo
15:45 - 04:30SAI  Siem Reap–Angkor Intl-PER Perth
11h 45m1 stop Kuala Lumpur Intl
$1,253Multiple Airlines
Tue, 5 Jan - Sat, 16 Jan

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Singapore Airlines flights from Perth to Siem Reap

Our best Singapore Airlines deals on Perth to Siem Reap flight tickets
Singapore Airlines
1 Oct
PER16:55Perth
23h 15m
1 stop
SAI15:10Siem Reap–Angkor Intl
30 Oct
SAI10:45Siem Reap–Angkor Intl
12h 20m
1 stop
PER00:05Perth
$813
Singapore Airlines
1 Oct
PER16:55Perth
23h 15m
1 stop
SAI15:10Siem Reap–Angkor Intl
30 Oct
SAI10:45Siem Reap–Angkor Intl
12h 20m
1 stop
PER00:05Perth
$815
Singapore Airlines
9 Sept
PER06:25Perth
9h 45m
1 stop
SAI15:10Siem Reap–Angkor Intl
16 Sept
SAI10:30Siem Reap–Angkor Intl
17h 40m
1 stop
PER05:10Perth
$845

VietJet Air flights from Perth to Siem Reap

Our best VietJet Air deals on Perth to Siem Reap flight tickets
VietJet Air
1 Oct
PER10:35Perth
32h 30m
2 stops
SAI18:05Siem Reap–Angkor Intl
30 Oct
SAI19:05Siem Reap–Angkor Intl
44h 20m
2 stops
PER16:25Perth
$1,078
VietJet Air
1 Oct
PER10:35Perth
32h 30m
2 stops
SAI18:05Siem Reap–Angkor Intl
30 Oct
SAI19:05Siem Reap–Angkor Intl
44h 20m
2 stops
PER16:25Perth
$1,141

momondo 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, momondo users made 78,305 searches. Data last updated 14 August 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

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

16:55-15:10

1 stop23h 15m

Siem Reap–Angkor Intl

Fri 30/10

10:45-00:05

1 stop12h 20m

$813

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

16:55-15:10

1 stop23h 15m

Siem Reap–Angkor Intl

Fri 30/10

10:45-00:05

1 stop12h 20m

$815

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Wed 9/9

06:25-15:10

1 stop9h 45m

Siem Reap–Angkor Intl

Wed 16/9

10:30-05:10

1 stop17h 40m

$845

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

20:50-09:15

1 stop13h 25m

Siem Reap–Angkor Intl

Fri 30/10

19:05-16:25

2 stops44h 20m

$1,012

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

20:50-14:50

1 stop19h 00m

Siem Reap–Angkor Intl

Fri 30/10

19:05-16:25

2 stops44h 20m

$1,034

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Wed 9/9

16:20-09:00

1 stop17h 40m

Siem Reap–Angkor Intl

Wed 16/9

19:05-17:10

3 stops45h 05m

$1,039

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

10:35-18:05

2 stops32h 30m

Siem Reap–Angkor Intl

Fri 30/10

19:05-16:25

2 stops44h 20m

$1,078

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Thu 1/10

10:35-18:05

2 stops32h 30m

Siem Reap–Angkor Intl

Fri 30/10

19:05-16:25

2 stops44h 20m

$1,141

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Wed 9/9

16:20-09:00

1 stop17h 40m

Siem Reap–Angkor Intl

Wed 16/9

15:35-17:10

2 stops24h 35m

$1,154
Fastest return journey

PerthSiem Reap

PER Perth - SAI Siem Reap–Angkor Intl

PERSAI

Perth

Tue 5/1

20:40-09:20

1 stop13h 40m

Siem Reap–Angkor Intl

Sat 16/1

15:45-04:30

1 stop11h 45m

$1,253

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Siem Reap from

How to get the cheapest flight ticket from Perth to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Siem Reap?

The cheapest month to fly to Siem Reap from Perth is in September. Flight prices, which tend to average around $740, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Siem Reap from Perth during November instead. Flights to Siem Reap in November, while not as cheap as those in September, still average around $760.

Can stopping save me money on Perth to Siem Reap flights?

You could potentially save up to 32% on your flight if you consider stops on a Perth to Siem Reap flight.

When to book flights from Perth to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Perth to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Perth to Siem Reap (PER to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Perth to Siem Reap

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from Perth to Siem Reap takes 9h 45m
There are no direct flights from Perth to Siem Reap. There are no popular flight routes from Perth to Siem Reap.
Search flight deals

Frequently asked questions about flying from Perth to Siem Reap

  • How far is Perth to Siem Reap–Angkor Intl by plane?

    Perth and Siem Reap–Angkor Intl are 5194.5 km apart from one another. In terms of flight time, this usually takes a little over 9h 45m.

  • When did momondo last update prices for flights from Perth Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Perth Airport to Siem Reap–Angkor Intl Airport are updated daily.

  • How many operators does momondo search for flights from Perth Airport to Siem Reap–Angkor Intl Airport?

  • How old do you have to be to fly from Perth Airport to Siem Reap–Angkor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Perth Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The necessary travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Perth to Siem Reap?

Best airlines flying from Perth to Siem Reap

Compare and see reviews for airlines that fly from Perth to Siem Reap with momondo
Airline
Rating
Free cancellation
Price
Singapore AirlinesPriceFrom $721Free cancellationRating
8.2
1,583 reviews
Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Perth to Siem Reap?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Perth to Siem Reap. momondo saves you time and could save you money on your trip.

Can I find flights from Perth to Siem Reap with flexible booking policies on momondo?

Flights from Perth to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Perth to Siem Reap?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from Perth.

I’m not ready to book a flight from Perth to Siem Reap right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Perth to Siem Reap now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Siem Reap and let you know when they change.

An easier way to manage your Siem Reap trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 13/9
Sun 20/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia

Fly your favourite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Singapore Airlines