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Cheap flights from Sydney to Siem Reap from $487

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 28/4. 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 Sydney to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
16:10 - 15:55
SYD
-
SAI
27h 45m
1 stop
Singapore Airlines Logo
10:45 - 17:55
SAI
-
SYD
27h 10m
1 stop
$855Singapore Airlines
Wed, 4 Mar - Wed, 18 Mar
Singapore Airlines Logo
16:10 - 15:55
SYD
-
SAI
27h 45m
1 stop
Singapore Airlines Logo
10:45 - 21:15
SAI
-
SYD
30h 30m
1 stop
$894Singapore Airlines
Wed, 4 Mar - Wed, 18 Mar
Multiple Airlines Logo
14:00 - 09:15
SYD
-
SAI
23h 15m
2 stops
Multiple Airlines Logo
14:55 - 12:45
SAI
-
SYD
17h 50m
2 stops
$998Multiple Airlines
Sun, 29 Mar - Sat, 4 Apr
Multiple Airlines Logo
20:20 - 14:10
SYD
-
SAI
45h 50m
3 stops
Multiple Airlines Logo
14:55 - 12:45
SAI
-
SYD
17h 50m
2 stops
$1,027Multiple Airlines
Sun, 29 Mar - Sat, 4 Apr
Multiple Airlines Logo
21:35 - 09:15
SYD
-
SAI
15h 40m
2 stops
Multiple Airlines Logo
14:55 - 09:20
SAI
-
SYD
14h 25m
1 stop
$1,085Multiple Airlines
Sun, 29 Mar - Sat, 4 Apr
Singapore Airlines Logo
07:25 - 15:10
SYD
-
SAI
34h 45m
1 stop
Singapore Airlines Logo
10:30 - 06:05
SAI
-
SYD
16h 35m
1 stop
$1,117Singapore Airlines
Thu, 25 Jun - Mon, 13 Jul
Singapore Airlines Logo
07:25 - 15:10
SYD
-
SAI
34h 45m
1 stop
Singapore Airlines Logo
10:30 - 16:45
SAI
-
SYD
27h 15m
1 stop
$1,144Singapore Airlines
Thu, 25 Jun - Mon, 13 Jul
Multiple Airlines Logo
21:50 - 09:15
SYD
-
SAI
15h 25m
1 stop
Multiple Airlines Logo
14:55 - 09:20
SAI
-
SYD
14h 25m
1 stop
$1,162Multiple Airlines
Sun, 29 Mar - Sat, 4 Apr
VietJet Air Logo
10:15 - 18:05
SYD
-
SAI
34h 50m
2 stops
VietJet Air Logo
19:05 - 07:20
SAI
-
SYD
33h 15m
2 stops
$1,176VietJet Air
Thu, 25 Jun - Mon, 13 Jul
Vietnam Airlines Logo
15:15 - 16:10
SYD
-
SAI
28h 55m
2 stops
Vietnam Airlines Logo
21:30 - 09:50
SAI
-
SYD
32h 20m
1 stop
$1,241Vietnam Airlines
Wed, 4 Mar - Wed, 18 Mar

VietJet Air flights from Sydney to Siem Reap

Our best VietJet Air deals on Sydney to Siem Reap flight tickets
VietJet Air
25 June
SYD10:15Sydney Kingsford Smith
34h 50m
2 stops
SAI18:05Siem Reap–Angkor Intl
13 July
SAI19:05Siem Reap–Angkor Intl
33h 15m
2 stops
SYD07:20Sydney Kingsford Smith
$1,176
VietJet Air
2 Apr
SYD11:15Sydney Kingsford Smith
34h 50m
2 stops
SAI18:05Siem Reap–Angkor Intl
14 Apr
SAI19:05Siem Reap–Angkor Intl
33h 15m
2 stops
SYD07:20Sydney Kingsford Smith
$1,825
VietJet Air
2 Apr
SYD11:15Sydney Kingsford Smith
34h 50m
2 stops
SAI18:05Siem Reap–Angkor Intl
14 Apr
SAI19:05Siem Reap–Angkor Intl
33h 15m
2 stops
SYD07:20Sydney Kingsford Smith
$1,829

China Eastern flights from Sydney to Siem Reap

Our best China Eastern deals on Sydney to Siem Reap flight tickets
China Eastern
25 June
SYD11:00Sydney Kingsford Smith
36h 10m
3 stops
SAI20:10Siem Reap–Angkor Intl
13 July
SAI21:10Siem Reap–Angkor Intl
31h 50m
2 stops
SYD08:00Sydney Kingsford Smith
$1,743
China Eastern
25 June
SYD11:00Sydney Kingsford Smith
36h 10m
3 stops
SAI20:10Siem Reap–Angkor Intl
13 July
SAI21:10Siem Reap–Angkor Intl
31h 50m
2 stops
SYD08:00Sydney Kingsford Smith
$1,799
China Eastern
6 Feb
SYD10:30Sydney Kingsford Smith
38h 30m
3 stops
SAI21:00Siem Reap–Angkor Intl
14 Feb
SAI22:00Siem Reap–Angkor Intl
32h 00m
3 stops
SYD10:00Sydney Kingsford Smith
$2,429

momondo Fare Finder

 
Customise your flight search to find flights from Sydney 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 29 January 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

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Wed 4/3

16:10-15:55

1 stop27h 45m

Siem Reap–Angkor Intl

Wed 18/3

10:45-17:55

1 stop27h 10m

$855

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Wed 4/3

16:10-15:55

1 stop27h 45m

Siem Reap–Angkor Intl

Wed 18/3

10:45-21:15

1 stop30h 30m

$894

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sun 29/3

14:00-09:15

2 stops23h 15m

Siem Reap–Angkor Intl

Sat 4/4

14:55-12:45

2 stops17h 50m

$998

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sun 29/3

20:20-14:10

3 stops45h 50m

Siem Reap–Angkor Intl

Sat 4/4

14:55-12:45

2 stops17h 50m

$1,027

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sun 29/3

21:35-09:15

2 stops15h 40m

Siem Reap–Angkor Intl

Sat 4/4

14:55-09:20

1 stop14h 25m

$1,085

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 25/6

07:25-15:10

1 stop34h 45m

Siem Reap–Angkor Intl

Mon 13/7

10:30-06:05

1 stop16h 35m

$1,117

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 25/6

07:25-15:10

1 stop34h 45m

Siem Reap–Angkor Intl

Mon 13/7

10:30-16:45

1 stop27h 15m

$1,144

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sun 29/3

21:50-09:15

1 stop15h 25m

Siem Reap–Angkor Intl

Sat 4/4

14:55-09:20

1 stop14h 25m

$1,162

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 25/6

10:15-18:05

2 stops34h 50m

Siem Reap–Angkor Intl

Mon 13/7

19:05-07:20

2 stops33h 15m

$1,176

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Wed 4/3

15:15-16:10

2 stops28h 55m

Siem Reap–Angkor Intl

Wed 18/3

21:30-09:50

1 stop32h 20m

$1,241

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 cheapest month to fly to Siem Reap?

The cheapest month to fly to Siem Reap from Sydney is in August. Flight prices, which tend to average around $774, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Siem Reap from Sydney during October instead. Flights to Siem Reap in October, while not as cheap as those in August, still average around $790.

How far in advance should I book a flight to Siem Reap?

You are more likely to see cheaper flights to Siem Reap from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Siem Reap for around $1,109 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Siem Reap from Sydney for as low as $672 on momondo.

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

You could potentially save up to 42% on your flight if you consider stops on a Sydney to Siem Reap flight.

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

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

Fastest flight time

11h 00m

Direct flights

None
The fastest flight from Sydney to Siem Reap takes 11h 00m
There are no direct flights from Sydney to Siem Reap. There are no popular flight routes from Sydney to Siem Reap.
Search flight deals

  • 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 00m.

  • 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 $706Free cancellationRating
7.6
224 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom $820Free cancellationRating
8.2
1,440 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

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.
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