Cheap flights from Sydney to Siem Reap, Cambodia from $559

SYD — SAI
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Siem Reap

Wed 11/1112:05 -
1 stop13h 40m
Fri 13/1122:25 -
1 stop31h 35m
Deal found 5/11$1,104
Wed 2/1215:15 -
1 stop32h 25m
Wed 9/1221:30 -
1 stop32h 20m
Deal found 2/11$1,274
Wed 2/1217:10 -
2 stops31h 20m
Wed 9/1216:50 -
1 stop14h 00m
Deal found 2/11$1,364
Fri 11/1215:15 -
1 stop32h 25m
Sun 20/1217:55 -
1 stop15h 20m
Deal found 3/11$1,714
Tue 8/1207:55 -
2 stops16h 35m
Tue 19/110:00 -
2 stops16h 30m
Deal found 2/11$1,953
Mon 7/1207:55 -
2 stops16h 35m
Mon 18/110:00 -
2 stops18h 55m
Deal found 2/11$1,971

Find flight deals from Sydney to Siem Reap

Round-trip from

$883

One-way from

$721

Popular in

January

Cheapest in

October

Average price

$1,046
Vietnam Airlines
  • Vietnam Airlines
  • 28/2-9/3
  • 2 total stops
  • 45h 00m total
  • Sydney to Siem Reap
3/12-31/12
  • 3/12-31/12
  • 2 total stops
  • 16h 35m total
  • Sydney to Siem Reap
Highest demand for flights based on searches. 29% potential increase in price ($801 potential increase over avg. return price).
Cheapest flight prices on average. 7% potential price decrease ($137 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sat 6/2

20:05-16:05

2 stops24h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$559

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 28/2

08:05-16:00

1 stop11h 55m

Siem Reap–Angkor Intl

Tue 9/3

19:05-10:00

2 stops34h 55m

$981

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

08:05-16:00

1 stop11h 55m

Siem Reap–Angkor Intl

Fri 12/3

10:45-17:55

1 stop27h 10m

$994

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

12:05-18:05

2 stops34h 00m

Siem Reap–Angkor Intl

Fri 12/3

19:05-10:00

2 stops58h 55m

$1,032

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Wed 2/12

15:15-19:40

1 stop32h 25m

Siem Reap–Angkor Intl

Wed 9/12

21:30-09:50

1 stop32h 20m

$1,274

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

15:15-14:20

2 stops27h 05m

Siem Reap–Angkor Intl

Fri 12/3

21:30-09:50

1 stop32h 20m

$1,284

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 29/11

11:50-16:10

3 stops32h 20m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,292

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Tue 1/12

11:50-16:10

3 stops56h 20m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,313

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Wed 2/12

17:10-20:30

2 stops31h 20m

Siem Reap–Angkor Intl

Wed 9/12

16:50-10:50

1 stop14h 00m

$1,364

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Thu 3/12

11:50-16:10

3 stops32h 20m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,556

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Sydney with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sydney to Siem Reap

What is the cheapest month to book a flight from Sydney to Siem Reap?

Currently, October is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $892). Flying from Sydney to Siem Reap in January is currently the most expensive (average of $2,204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Sydney to Siem Reap?

Airfare is below average for this route at the moment.

Sydney to Siem Reap flights typically cost between $950 and $1,151 in February.
The cheapest return price found within the last 5 days was $883 on Vietnam Airlines (28 Feb–9 Mar).

Reviews of airlines servicing Siem Reap

Read reviews from past customers who have flown with Singapore Airlines and Vietnam Airlines from Sydney to Siem Reap. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Crew

8.6

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Crew

8.6

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Related info for your journey

  • How long is the flight from Sydney to Siem Reap?

    Singapore Airlines, VietJet Air, and Vietnam Airlines can get you from Sydney to Siem Reap in just under 11h 55m. Your travel time can differ by up to 22h 05m. The distance between Sydney and Siem Reap is about 7229 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sydney to Siem Reap round-trip?

    According to our current data, Vietnam Airlines ($839), and Singapore Airlines ($865) offers the cheapest pricing from Sydney to Siem Reap. Vietnam Airlines is currently priced 36% below the average price you’ll pay for this route.

  • Can I find deals for flights from Sydney to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Sydney to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Siem Reap.

  • Can I find deals for business class flights from Sydney to Siem Reap?

    Yes. Cheapflights offers flight deals from Sydney to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Siem Reap?

    Currently, October is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $892). Flying from Sydney to Siem Reap in January is currently the most expensive (average of $2,204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sydney to Siem Reap

Top 2 airlines flying from Sydney to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$839Average$1,128FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$865Average$1,324FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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