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Cheap flights from Sydney to Siem Reap from $432

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
11:50 - 20:30SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
12h 40m1 stop Ho Chi Minh City
Vietnam Airlines Logo
21:30 - 09:50SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
32h 20m1 stop Ho Chi Minh City
$840Vietnam Airlines
Mon, 22 Feb - Mon, 8 Mar
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
21:30 - 09:50SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
32h 20m1 stop Ho Chi Minh City
$840Vietnam Airlines
Sun, 21 Feb - Thu, 11 Mar
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
17:05 - 13:15SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
16h 10m2 stops Luang Prabang Hanoi Noibai
$852Vietnam Airlines
Sun, 21 Feb - Thu, 11 Mar
Multiple Airlines Logo
20:05 - 14:50SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
22h 45m2 stops Singapore Changi Kuala Lumpur Intl
Multiple Airlines Logo
19:40 - 07:20SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
32h 40m1 stop Ho Chi Minh City
$982Multiple Airlines
Fri, 19 Mar - Tue, 6 Apr
Vietnam Airlines Logo
15:15 - 19:40SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
32h 25m1 stop Hanoi Noibai
Vietnam Airlines Logo
19:40 - 08:15SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
33h 35m1 stop Ho Chi Minh City
$1,030Vietnam Airlines
Fri, 19 Mar - Tue, 6 Apr
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
18:50 - 06:30SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
31h 40m2 stops Ho Chi Minh City Denpasar Bali Ngurah Rai
$1,046Multiple Airlines
Thu, 18 Feb - Sun, 21 Feb
Singapore Airlines Logo
19:10 - 09:55SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
18h 45m1 stop Singapore Changi
Singapore Airlines Logo
10:45 - 17:55SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
27h 10m1 stop Singapore Changi
$1,066Singapore Airlines
Thu, 18 Feb - Sun, 21 Feb
Multiple Airlines Logo
11:25 - 11:40SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
28h 15m2 stops Guangzhou Baiyun Phnom Penh Techo Intl
Multiple Airlines Logo
12:30 - 13:20SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
20h 50m2 stops Phnom Penh Techo Intl Guangzhou Baiyun
$1,083Multiple Airlines
Sun, 21 Feb - Thu, 11 Mar
Singapore Airlines Logo
15:50 - 09:55SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
22h 05m1 stop Singapore Changi
Singapore Airlines Logo
16:50 - 17:55SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
21h 05m1 stop Singapore Changi
$2,026Singapore Airlines
Sun, 10 Jan - Sat, 16 Jan
Singapore Airlines Logo
15:50 - 09:55SYD  Sydney Kingsford Smith-SAI Siem Reap–Angkor Intl
22h 05m1 stop Singapore Changi
Singapore Airlines Logo
16:50 - 17:55SAI  Siem Reap–Angkor Intl-SYD Sydney Kingsford Smith
21h 05m1 stop Singapore Changi
$2,027Singapore Airlines
Sun, 10 Jan - Sat, 16 Jan

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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
2 Nov
SYD15:15Sydney Kingsford Smith
29h 40m
1 stop
SAI16:55Siem Reap–Angkor Intl
9 Nov
SAI21:30Siem Reap–Angkor Intl
32h 20m
1 stop
SYD09:50Sydney Kingsford Smith
$1,142
Vietnam Airlines
16 Nov
SYD15:15Sydney Kingsford Smith
32h 25m
1 stop
SAI19:40Siem Reap–Angkor Intl
12 Dec
SAI21:30Siem Reap–Angkor Intl
32h 20m
1 stop
SYD09:50Sydney Kingsford Smith
$1,199
Vietnam Airlines
16 Nov
SYD15:15Sydney Kingsford Smith
32h 25m
1 stop
SAI19:40Siem Reap–Angkor Intl
17 Dec
SAI17:05Siem Reap–Angkor Intl
16h 10m
2 stops
SYD13:15Sydney Kingsford Smith
$1,213

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

Return

Price

Cheapest return flight

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 22/2

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Mon 8/3

21:30-09:50

1 stop32h 20m

$840

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 21/2

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Thu 11/3

21:30-09:50

1 stop32h 20m

$840
Fastest return journey

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 21/2

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Thu 11/3

17:05-13:15

2 stops16h 10m

$852

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 19/3

20:05-14:50

2 stops22h 45m

Siem Reap–Angkor Intl

Tue 6/4

19:40-07:20

1 stop32h 40m

$982

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 19/3

15:15-19:40

1 stop32h 25m

Siem Reap–Angkor Intl

Tue 6/4

19:40-08:15

1 stop33h 35m

$1,030

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Thu 18/2

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Sun 21/2

18:50-06:30

2 stops31h 40m

$1,046

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Thu 18/2

19:10-09:55

1 stop18h 45m

Siem Reap–Angkor Intl

Sun 21/2

10:45-17:55

1 stop27h 10m

$1,066

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 21/2

11:25-11:40

2 stops28h 15m

Siem Reap–Angkor Intl

Thu 11/3

12:30-13:20

2 stops20h 50m

$1,083

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 10/1

15:50-09:55

1 stop22h 05m

Siem Reap–Angkor Intl

Sat 16/1

16:50-17:55

1 stop21h 05m

$2,026

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 10/1

15:50-09:55

1 stop22h 05m

Siem Reap–Angkor Intl

Sat 16/1

16:50-17:55

1 stop21h 05m

$2,027

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 $929 to $1,125.
The lowest price recently found on this route was $840.

What is the cheapest month to fly to Siem Reap?

The cheapest month to fly to Siem Reap from Sydney is in October. Flight prices, which tend to average around $872, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Siem Reap from Sydney during June instead. Flights to Siem Reap in June, while not as cheap as those in October, still average around $879.

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

As of October 2026, prices for Sydney to Siem Reap flights are approximately 13% 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

$432

Fastest flight time

22h 45m

Direct flights

None
The best one-way flight to Siem Reap from Sydney in the past 72 hours is $432. The best return flight deal from Sydney to Siem Reap found on momondo in the last 72 hours is $840.
The fastest flight from Sydney to Siem Reap takes 22h 45m
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 22h 45m.

  • 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 $820Free cancellationRating
7.7
294 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom $846Free cancellationRating
8.2
1,631 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.

An easier way to manage your Siem Reap trip

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