Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Perth to Siem Reap from $261

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 6/3. 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

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

Find the cheapest flights from Perth to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:40 - 09:20
PER
-
SAI
13h 40m
1 stop
Multiple Airlines Logo
18:10 - 04:30
SAI
-
PER
9h 20m
1 stop
$658Multiple Airlines
Sun, 1 Mar - Sun, 8 Mar
Multiple Airlines Logo
20:40 - 09:20
PER
-
SAI
13h 40m
1 stop
Multiple Airlines Logo
18:10 - 04:30
SAI
-
PER
9h 20m
1 stop
$689Multiple Airlines
Sun, 1 Mar - Sun, 8 Mar
Multiple Airlines Logo
20:40 - 09:20
PER
-
SAI
13h 40m
1 stop
Multiple Airlines Logo
18:10 - 04:30
SAI
-
PER
9h 20m
1 stop
$693Multiple Airlines
Sun, 1 Mar - Sun, 8 Mar
Multiple Airlines Logo
04:40 - 14:10
PER
-
SAI
10h 30m
1 stop
Multiple Airlines Logo
14:55 - 04:00
SAI
-
PER
12h 05m
1 stop
$1,041Multiple Airlines
Thu, 2 Apr - Tue, 7 Apr
Multiple Airlines Logo
04:40 - 14:10
PER
-
SAI
10h 30m
1 stop
Multiple Airlines Logo
14:55 - 17:10
SAI
-
PER
25h 15m
2 stops
$1,089Multiple Airlines
Thu, 2 Apr - Tue, 7 Apr
Multiple Airlines Logo
05:35 - 11:10
PER
-
SAI
30h 35m
3 stops
Multiple Airlines Logo
14:55 - 04:00
SAI
-
PER
12h 05m
1 stop
$1,105Multiple Airlines
Thu, 2 Apr - Tue, 7 Apr
Vietnam Airlines Logo
00:45 - 16:55
PER
-
SAI
41h 10m
2 stops
Vietnam Airlines Logo
16:00 - 22:30
SAI
-
PER
29h 30m
1 stop
$1,140Vietnam Airlines
Sat, 28 Feb - Sun, 8 Mar
Vietnam Airlines Logo
00:45 - 16:55
PER
-
SAI
41h 10m
2 stops
Vietnam Airlines Logo
18:50 - 22:30
SAI
-
PER
26h 40m
1 stop
$1,143Vietnam Airlines
Sat, 28 Feb - Sun, 8 Mar
Vietnam Airlines Logo
00:45 - 16:55
PER
-
SAI
41h 10m
2 stops
Vietnam Airlines Logo
16:00 - 22:30
SAI
-
PER
29h 30m
1 stop
$1,147Vietnam Airlines
Sat, 28 Feb - Sun, 8 Mar
Vietnam Airlines Logo
00:45 - 16:10
PER
-
SAI
40h 25m
3 stops
Vietnam Airlines Logo
18:50 - 22:30
SAI
-
PER
26h 40m
1 stop
$1,169Vietnam Airlines
Sat, 28 Feb - Sun, 8 Mar

Vietnam Airlines flights from Perth to Siem Reap

Our best Vietnam Airlines deals on Perth to Siem Reap flight tickets
Vietnam Airlines
28 Feb
PER00:45Perth
41h 10m
2 stops
SAI16:55Siem Reap–Angkor Intl
8 Mar
SAI16:00Siem Reap–Angkor Intl
29h 30m
1 stop
PER22:30Perth
$1,140
Vietnam Airlines
28 Feb
PER00:45Perth
41h 10m
2 stops
SAI16:55Siem Reap–Angkor Intl
8 Mar
SAI18:50Siem Reap–Angkor Intl
26h 40m
1 stop
PER22:30Perth
$1,143
Vietnam Airlines
28 Feb
PER00:45Perth
41h 10m
2 stops
SAI16:55Siem Reap–Angkor Intl
8 Mar
SAI16:00Siem Reap–Angkor Intl
29h 30m
1 stop
PER22:30Perth
$1,147

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 13 February 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

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sun 1/3

20:40-09:20

1 stop13h 40m

Siem Reap–Angkor Intl

Sun 8/3

18:10-04:30

1 stop9h 20m

$658

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sun 1/3

20:40-09:20

1 stop13h 40m

Siem Reap–Angkor Intl

Sun 8/3

18:10-04:30

1 stop9h 20m

$689

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sun 1/3

20:40-09:20

1 stop13h 40m

Siem Reap–Angkor Intl

Sun 8/3

18:10-04:30

1 stop9h 20m

$693

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 2/4

04:40-14:10

1 stop10h 30m

Siem Reap–Angkor Intl

Tue 7/4

14:55-04:00

1 stop12h 05m

$1,041

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 2/4

04:40-14:10

1 stop10h 30m

Siem Reap–Angkor Intl

Tue 7/4

14:55-17:10

2 stops25h 15m

$1,089

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 2/4

05:35-11:10

3 stops30h 35m

Siem Reap–Angkor Intl

Tue 7/4

14:55-04:00

1 stop12h 05m

$1,105

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 28/2

00:45-16:55

2 stops41h 10m

Siem Reap–Angkor Intl

Sun 8/3

16:00-22:30

1 stop29h 30m

$1,140

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 28/2

00:45-16:55

2 stops41h 10m

Siem Reap–Angkor Intl

Sun 8/3

18:50-22:30

1 stop26h 40m

$1,143

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 28/2

00:45-16:55

2 stops41h 10m

Siem Reap–Angkor Intl

Sun 8/3

16:00-22:30

1 stop29h 30m

$1,147

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 28/2

00:45-16:10

3 stops40h 25m

Siem Reap–Angkor Intl

Sun 8/3

18:50-22:30

1 stop26h 40m

$1,169

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 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 May. Flight prices, which tend to average around $669, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Siem Reap from Perth during September instead. Flights to Siem Reap in September, while not as cheap as those in May, still average around $724.

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

You could potentially save up to 49% on your flight if you consider stops on a Perth to Siem Reap flight.

How have Perth to Siem Reap flight prices changed over time?

As of February 2026, prices for Perth to Siem Reap flights are approximately 26% cheaper when compared to flights at the same time last year.

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

10h 30m

Direct flights

None
The fastest flight from Perth to Siem Reap takes 10h 30m
There are no direct flights from Perth to Siem Reap. There are no popular flight routes from Perth to Siem Reap.
Search flight deals

  • 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 10h 30m.

  • 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 $643Free cancellationRating
8.2
1,452 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 15/3
Sun 22/3
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