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Cheap flights from Sydney to Siem Reap from $462

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Sydney to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
11:15 - 18:20SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
11h 05m1 stop Ho Chi Minh City
Vietnam Airlines Logo
18:40 - 09:50SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
11h 10m1 stop Ho Chi Minh City
$764Vietnam Airlines
Sun, 18 Oct - Wed, 28 Oct
Vietnam Airlines Logo
11:15 - 18:20SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
11h 05m1 stop Ho Chi Minh City
Vietnam Airlines Logo
18:40 - 09:50SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
11h 10m1 stop Ho Chi Minh City
$784Vietnam Airlines
Sun, 18 Oct - Wed, 28 Oct
Vietnam Airlines Logo
11:50 - 20:30SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
12h 40m1 stop Ho Chi Minh City
Vietnam Airlines Logo
20:30 - 13:15SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
12h 45m1 stop Hanoi Noibai
$818Vietnam Airlines
Mon, 9 Nov - Thu, 3 Dec
Vietnam Airlines Logo
11:50 - 20:30SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
12h 40m1 stop Ho Chi Minh City
Vietnam Airlines Logo
17:55 - 13:15SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
15h 20m1 stop Hanoi Noibai
$821Vietnam Airlines
Tue, 3 Nov - Sun, 20 Dec
Singapore Airlines Logo
12:00 - 09:55SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
25h 55m1 stop Singapore Changi
Singapore Airlines Logo
10:30 - 11:25SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
20h 55m1 stop Singapore Changi
$876Singapore Airlines
Sat, 24 Oct - Wed, 31 Mar
Multiple Airlines Logo
11:50 - 18:50SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
11h 00m1 stop Ho Chi Minh City
Multiple Airlines Logo
18:40 - 09:50SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
11h 10m1 stop Ho Chi Minh City
$881Multiple Airlines
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
11:50 - 20:30SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
12h 40m1 stop Ho Chi Minh City
Multiple Airlines Logo
19:05 - 10:00SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
34h 55m2 stops Hanoi Noibai Ho Chi Minh City
$951Multiple Airlines
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
11:50 - 20:30SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
12h 40m1 stop Ho Chi Minh City
Multiple Airlines Logo
10:20 - 11:30SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
21h 10m1 stop Ho Chi Minh City
$951Multiple Airlines
Mon, 9 Nov - Thu, 3 Dec
Singapore Airlines Logo
15:50 - 09:40SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
21h 50m1 stop Singapore Changi
Singapore Airlines Logo
10:30 - 17:45SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
27h 15m1 stop Singapore Changi
$1,177Singapore Airlines
Mon, 5 Oct - Sat, 17 Oct
Singapore Airlines Logo
15:50 - 09:40SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
21h 50m1 stop Singapore Changi
Singapore Airlines Logo
10:30 - 20:15SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
29h 45m1 stop Singapore Changi
$1,256Singapore Airlines
Mon, 5 Oct - Sat, 17 Oct

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Vietnam Airlines flights from Sydney to Siem Reap

Our best Vietnam Airlines deals on Sydney to Siem Reap flight tickets
Vietnam Airlines
18 Oct
SYD11:15Sydney Kingsford Smith
11h 05m
1 stop
SAI18:20Siem Reap–Angkor Intl
28 Oct
SAI18:40Siem Reap–Angkor Intl
11h 10m
1 stop
SYD09:50Sydney Kingsford Smith
$764
Vietnam Airlines
18 Oct
SYD11:15Sydney Kingsford Smith
11h 05m
1 stop
SAI18:20Siem Reap–Angkor Intl
28 Oct
SAI18:40Siem Reap–Angkor Intl
11h 10m
1 stop
SYD09:50Sydney Kingsford Smith
$784
Vietnam Airlines
9 Nov
SYD11:50Sydney Kingsford Smith
12h 40m
1 stop
SAI20:30Siem Reap–Angkor Intl
3 Dec
SAI20:30Siem Reap–Angkor Intl
12h 45m
1 stop
SYD13:15Sydney Kingsford Smith
$818

VietJet Air flights from Sydney to Siem Reap

Our best VietJet Air deals on Sydney to Siem Reap flight tickets
VietJet Air
23 Nov
SYD12:05Sydney Kingsford Smith
34h 00m
2 stops
SAI18:05Siem Reap–Angkor Intl
16 Dec
SAI19:05Siem Reap–Angkor Intl
34h 55m
2 stops
SYD10:00Sydney Kingsford Smith
$1,194
VietJet Air
23 Nov
SYD12:05Sydney Kingsford Smith
34h 00m
2 stops
SAI18:05Siem Reap–Angkor Intl
12 Dec
SAI19:05Siem Reap–Angkor Intl
34h 55m
2 stops
SYD10:00Sydney Kingsford Smith
$1,203
VietJet Air
8 Oct
SYD11:15Sydney Kingsford Smith
34h 50m
2 stops
SAI18:05Siem Reap–Angkor Intl
15 Oct
SAI19:05Siem Reap–Angkor Intl
57h 15m
2 stops
SYD08:20Sydney Kingsford Smith
$1,248

momondo Fare Finder

 
Use the filters below to find and compare flights from Sydney to Siem Reap that are best for you.

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Depart

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Price

Cheapest return flight

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 18/10

11:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Wed 28/10

18:40-09:50

1 stop11h 10m

$764

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 18/10

11:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Wed 28/10

18:40-09:50

1 stop11h 10m

$784

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 9/11

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Thu 3/12

20:30-13:15

1 stop12h 45m

$818

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Tue 3/11

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Sun 20/12

17:55-13:15

1 stop15h 20m

$821

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sat 24/10

12:00-09:55

1 stop25h 55m

Siem Reap–Angkor Intl

Wed 31/3

10:30-11:25

1 stop20h 55m

$876
Fastest return journey

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Tue 27/10

11:50-18:50

1 stop11h 00m

Siem Reap–Angkor Intl

Tue 3/11

18:40-09:50

1 stop11h 10m

$881

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Tue 27/10

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Tue 3/11

19:05-10:00

2 stops34h 55m

$951

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 9/11

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Thu 3/12

10:20-11:30

1 stop21h 10m

$951

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 5/10

15:50-09:40

1 stop21h 50m

Siem Reap–Angkor Intl

Sat 17/10

10:30-17:45

1 stop27h 15m

$1,177

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 5/10

15:50-09:40

1 stop21h 50m

Siem Reap–Angkor Intl

Sat 17/10

10:30-20:15

1 stop29h 45m

$1,256

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 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 typical price of a round-trip flight between Sydney and Siem Reap?

Prices are currently low for flights on this route.

Typical prices usually range from $1,023 to $1,358.
The lowest price recently found on this route was $764.

What is the cheapest month to fly to Siem Reap?

The cheapest month to fly to Siem Reap from Sydney is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Siem Reap from Sydney during June instead. Flights to Siem Reap in June, while not as cheap as those in February, still average around $863.

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

As of September 2026, prices for Sydney to Siem Reap flights are approximately 79% more expensive when compared to flights at the same time last year.

When to book flights from Sydney to Siem Reap

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

Cheap Sydney to Siem Reap (SYD to SAI) flight deals and tips

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

Best price found

$462

Fastest flight time

11h 05m

Direct flights

None
The best one-way flight to Siem Reap from Sydney in the past 72 hours is $462. The best return flight deal from Sydney to Siem Reap found on momondo in the last 72 hours is $764.
The fastest flight from Sydney to Siem Reap takes 11h 05m
There are no direct flights from Sydney to Siem Reap. There are no popular flight routes from Sydney to Siem Reap.
Search flight deals

Frequently asked questions about flying from Sydney to Siem Reap

  • How far is Sydney Kingsford Smith to Siem Reap–Angkor Intl by plane?

    Siem Reap–Angkor Intl is 7251.8 km away from Sydney Kingsford Smith. In terms of flight time, this usually takes a little over 11h 05m.

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

    Prices for flights from Sydney Kingsford Smith Airport to Siem Reap–Angkor Intl Airport are updated daily.

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

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

Best airlines flying from Sydney to Siem Reap

Compare and see reviews for airlines that fly from Sydney to Siem Reap with momondo
Airline
Rating
Free cancellation
Price
Vietnam AirlinesPriceFrom $807Free cancellationRating
7.7
287 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom $830Free cancellationRating
8.2
1,600 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?

Flights from Sydney 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 Sydney to Siem Reap?

momondo helps you find the best flight between Sydney 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 Sydney to Siem Reap right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Sydney and alert you when they change.

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