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Cheap flights from Perth to Siem Reap from $431

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 19/6. 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

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Find the cheapest flights from Perth to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:50 - 16:35
PER
-
SAI
20h 45m
1 stop
Multiple Airlines Logo
15:35 - 03:45
SAI
-
PER
11h 10m
1 stop
$924Multiple Airlines
Sat, 20 Jun - Tue, 14 Jul
Multiple Airlines Logo
20:50 - 16:35
PER
-
SAI
20h 45m
1 stop
Multiple Airlines Logo
23:50 - 06:20
SAI
-
PER
29h 30m
2 stops
$1,000Multiple Airlines
Sat, 20 Jun - Tue, 14 Jul
Multiple Airlines Logo
20:00 - 16:35
PER
-
SAI
21h 35m
2 stops
Multiple Airlines Logo
23:50 - 06:20
SAI
-
PER
29h 30m
2 stops
$1,046Multiple Airlines
Sat, 20 Jun - Tue, 14 Jul

momondo Fare Finder

 
Customise your flight search to find flights from Perth to Region of 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 22 April 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 20/6

20:50-16:35

1 stop20h 45m

Siem Reap–Angkor Intl

Tue 14/7

15:35-03:45

1 stop11h 10m

$924

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 20/6

20:50-16:35

1 stop20h 45m

Siem Reap–Angkor Intl

Tue 14/7

23:50-06:20

2 stops29h 30m

$1,000

PerthSiem Reap

PER - SAI

PERSAI

Perth

Sat 20/6

20:00-16:35

2 stops21h 35m

Siem Reap–Angkor Intl

Tue 14/7

23:50-06:20

2 stops29h 30m

$1,046
Cheapest one-way
Fastest single journey

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 19/6

20:50-16:35

1 stop20h 45m

$431

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 19/6

20:10-16:35

2 stops21h 25m

$542

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 19/6

20:10-18:05

3 stops22h 55m

$574

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Siem Reap from

How to get the cheapest flight ticket from Perth to Region of 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 Region of Siem Reap?

The cheapest month to fly to Region of Siem Reap from Perth is in September. Flight prices, which tend to average around $729, 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 Region of Siem Reap from Perth during August instead. Flights to Region of Siem Reap in August, while not as cheap as those in September, still average around $732.

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

You could potentially save up to 16% on your flight if you consider stops on a Perth to Region of Siem Reap flight.

Cheap Perth to Region of Siem Reap flight deals and tips

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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Perth to Region of Siem Reap takes 20h 45m
There are no direct flights from Perth to Region of Siem Reap. There are no popular flight routes from Perth to Region of Siem Reap.
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Frequently asked questions about flying from Perth to Siem Reap

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Perth Airport to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

    The travel and health documents required for your trip to Siem Reap can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Siem Reap. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Perth to Region of Siem Reap

Compare and see reviews for airlines that fly from Perth to Region of Siem Reap with momondo
Airline
Rating
Free cancellation
Price
Singapore AirlinesPriceFrom $695Free cancellationRating
8.2
1,502 reviews
Search Singapore Airlines flights

Why use momondo?

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

Finding the right flight to Siem Reap from Perth is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

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

All flight searches from Perth to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Perth and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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 Region of Siem Reap trip

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