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Cheap flights from Sydney to Siem Reap from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Siem Reap departing on 15/5. 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

Find the cheapest flights from Sydney to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
10:15 - 18:20
SYD
-
SAI
11h 05m
1 stop
Vietnam Airlines Logo
21:30 - 09:50
SAI
-
SYD
32h 20m
1 stop
$845Vietnam Airlines
Tue, 1 Sep - Fri, 30 Oct
Vietnam Airlines Logo
10:15 - 18:20
SYD
-
SAI
11h 05m
1 stop
Vietnam Airlines Logo
17:05 - 13:15
SAI
-
SYD
16h 10m
2 stops
$858Vietnam Airlines
Tue, 1 Sep - Fri, 30 Oct
Multiple Airlines Logo
15:10 - 08:45
SYD
-
SAI
20h 35m
1 stop
Multiple Airlines Logo
22:35 - 10:10
SAI
-
SYD
32h 35m
1 stop
$914Multiple Airlines
Thu, 21 May - Wed, 27 May
Multiple Airlines Logo
20:35 - 18:55
SYD
-
SAI
25h 20m
2 stops
Multiple Airlines Logo
19:05 - 08:05
SAI
-
SYD
33h 00m
2 stops
$926Multiple Airlines
Tue, 1 Sep - Sat, 31 Oct
Multiple Airlines Logo
20:50 - 09:15
SYD
-
SAI
15h 25m
1 stop
Multiple Airlines Logo
19:05 - 08:05
SAI
-
SYD
33h 00m
2 stops
$956Multiple Airlines
Tue, 1 Sep - Sat, 31 Oct
Singapore Airlines Logo
07:25 - 15:10
SYD
-
SAI
34h 45m
1 stop
Singapore Airlines Logo
10:30 - 10:25
SAI
-
SYD
20h 55m
1 stop
$960Singapore Airlines
Thu, 21 May - Wed, 27 May
Multiple Airlines Logo
13:00 - 09:15
SYD
-
SAI
23h 15m
2 stops
Multiple Airlines Logo
10:10 - 18:50
SAI
-
SYD
28h 40m
2 stops
$961Multiple Airlines
Tue, 1 Sep - Fri, 30 Oct
Multiple Airlines Logo
20:40 - 13:15
SYD
-
SAI
19h 35m
2 stops
Multiple Airlines Logo
22:35 - 10:10
SAI
-
SYD
32h 35m
1 stop
$985Multiple Airlines
Thu, 21 May - Wed, 27 May
Multiple Airlines Logo
13:00 - 09:15
SYD
-
SAI
23h 15m
2 stops
Multiple Airlines Logo
09:35 - 19:20
SAI
-
SYD
30h 45m
2 stops
$1,017Multiple Airlines
Thu, 21 May - Wed, 27 May
Multiple Airlines Logo
13:00 - 16:10
SYD
-
SAI
30h 10m
2 stops
Multiple Airlines Logo
11:55 - 11:45
SAI
-
SYD
20h 50m
2 stops
$1,049Multiple Airlines
Tue, 12 May - Tue, 19 May

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Vietnam Airlines flights from Sydney to Region of Siem Reap

Our best Vietnam Airlines deals on Sydney to Region of Siem Reap flight tickets
Vietnam Airlines
1 Sept
SYD10:15Sydney Kingsford Smith
11h 05m
1 stop
SAI18:20Siem Reap–Angkor Intl
31 Oct
SAI21:30Siem Reap–Angkor Intl
32h 20m
1 stop
SYD09:50Sydney Kingsford Smith
$845
Vietnam Airlines
1 Sept
SYD10:15Sydney Kingsford Smith
11h 05m
1 stop
SAI18:20Siem Reap–Angkor Intl
30 Oct
SAI17:05Siem Reap–Angkor Intl
16h 10m
2 stops
SYD13:15Sydney Kingsford Smith
$858
Vietnam Airlines
3 Oct
SYD10:15Sydney Kingsford Smith
14h 40m
1 stop
SAI21:55Siem Reap–Angkor Intl
6 Oct
SAI18:05Siem Reap–Angkor Intl
15h 10m
1 stop
SYD13:15Sydney Kingsford Smith
$1,114

Singapore Airlines flights from Sydney to Region of Siem Reap

Our best Singapore Airlines deals on Sydney to Region of Siem Reap flight tickets
Singapore Airlines
21 May
SYD07:25Sydney Kingsford Smith
34h 45m
1 stop
SAI15:10Siem Reap–Angkor Intl
27 May
SAI10:30Siem Reap–Angkor Intl
20h 55m
1 stop
SYD10:25Sydney Kingsford Smith
$960
Singapore Airlines
12 May
SYD18:00Sydney Kingsford Smith
18h 40m
1 stop
SAI09:40Siem Reap–Angkor Intl
19 May
SAI10:30Siem Reap–Angkor Intl
16h 35m
1 stop
SYD06:05Sydney Kingsford Smith
$1,233
Singapore Airlines
2 May
SYD18:00Sydney Kingsford Smith
18h 40m
1 stop
SAI09:40Siem Reap–Angkor Intl
11 May
SAI10:30Siem Reap–Angkor Intl
27h 15m
1 stop
SYD16:45Sydney Kingsford Smith
$1,350

momondo Fare Finder

 
Customise your flight search to find flights from Sydney 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 30 April 2026.
Use the filters below to find and compare flights from Sydney to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 1/9

10:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Fri 30/10

21:30-09:50

1 stop32h 20m

$845
Fastest return journey

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 1/9

10:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Fri 30/10

17:05-13:15

2 stops16h 10m

$858

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 21/5

15:10-08:45

1 stop20h 35m

Siem Reap–Angkor Intl

Wed 27/5

22:35-10:10

1 stop32h 35m

$914

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 1/9

20:35-18:55

2 stops25h 20m

Siem Reap–Angkor Intl

Sat 31/10

19:05-08:05

2 stops33h 00m

$926

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 1/9

20:50-09:15

1 stop15h 25m

Siem Reap–Angkor Intl

Sat 31/10

19:05-08:05

2 stops33h 00m

$956

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 21/5

07:25-15:10

1 stop34h 45m

Siem Reap–Angkor Intl

Wed 27/5

10:30-10:25

1 stop20h 55m

$960

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 1/9

13:00-09:15

2 stops23h 15m

Siem Reap–Angkor Intl

Fri 30/10

10:10-18:50

2 stops28h 40m

$961

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 21/5

20:40-13:15

2 stops19h 35m

Siem Reap–Angkor Intl

Wed 27/5

22:35-10:10

1 stop32h 35m

$985

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 21/5

13:00-09:15

2 stops23h 15m

Siem Reap–Angkor Intl

Wed 27/5

09:35-19:20

2 stops30h 45m

$1,017

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Tue 12/5

13:00-16:10

2 stops30h 10m

Siem Reap–Angkor Intl

Tue 19/5

11:55-11:45

2 stops20h 50m

$1,049

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Sydney 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 Sydney is in April. Flight prices, which tend to average around $448, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Region of Siem Reap from Sydney during March instead. Flights to Region of Siem Reap in March, while not as cheap as those in April, still average around $618.

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

You could potentially save up to 6% on your flight if you consider stops on a Sydney to Region of Siem Reap flight.

Cheap Sydney to Region of Siem Reap flight deals and tips

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

Fastest flight time

11h 05m

Direct flights

None
The fastest flight from Sydney to Region of Siem Reap takes 11h 05m
There are no direct flights from Sydney to Region of Siem Reap. There are no popular flight routes from Sydney to Region of Siem Reap.
Search flight deals

Frequently asked questions about flying from Sydney to Siem Reap

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Siem Reap?

    Prices for flights from Sydney Kingsford Smith Airport to Siem Reap refresh daily.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Siem Reap?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Siem Reap?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Siem Reap.

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

    The necessary travel and health documents for your Siem Reap 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.

Best airlines flying from Sydney to Region of Siem Reap

Compare and see reviews for airlines that fly from Sydney to Region of Siem Reap with momondo
Airline
Rating
Free cancellation
Price
Vietnam AirlinesPriceFrom $704Free cancellationRating
7.7
264 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom $827Free cancellationRating
8.2
1,505 reviews
Search Singapore Airlines flights

Why use momondo?

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

Finding the right flight to Siem Reap from Sydney 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 Sydney to Siem Reap with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Siem Reap from Sydney with this policy.

How can momondo help me find flights from Sydney 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 Sydney.

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

If you are not ready to book a flight from Sydney 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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