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Cheap flights from Sydney to Siem Reap, Cambodia from $484

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAI
27 Jul — 3 Aug1
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
Explore the most affordable flight options available from Sydney to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2026.

Fri 30/1012:05
SYD
-
SAI
2 stops34h 00m
VietJet Air
Sat 7/1119:05
SAI
-
SYD
2 stops34h 55m
VietJet Air
Deal found 22/6$861
Tue 10/1113:25
SYD
-
SAI
2 stops23h 55m
Multiple Airlines
Tue 24/1118:50
SAI
-
SYD
1 stop12h 40m
Multiple Airlines
Deal found 25/6$867
Thu 3/910:15
SYD
-
SAI
2 stops34h 50m
VietJet Air
Sat 12/919:05
SAI
-
SYD
2 stops33h 15m
VietJet Air
Deal found 26/6$909
Wed 2/920:50
SYD
-
SAI
1 stop21h 00m
Multiple Airlines
Thu 10/915:35
SAI
-
SYD
1 stop13h 45m
Multiple Airlines
Deal found 23/6$919
Tue 10/1122:15
SYD
-
SAI
1 stop20h 45m
Multiple Airlines
Sun 22/1118:50
SAI
-
SYD
1 stop12h 40m
Multiple Airlines
Deal found 25/6$926
Fri 30/1015:15
SYD
-
SAI
1 stop29h 40m
Vietnam Airlines
Sat 7/1121:30
SAI
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 22/6$928
Fri 6/1115:15
SYD
-
SAI
1 stop29h 40m
Vietnam Airlines
Sat 14/1121:30
SAI
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 25/6$937
Thu 3/910:15
SYD
-
SAI
1 stop11h 05m
Vietnam Airlines
Thu 10/919:40
SAI
-
SYD
1 stop33h 35m
Vietnam Airlines
Deal found 23/6$939
Fri 6/1113:25
SYD
-
SAI
2 stops30h 40m
Multiple Airlines
Sat 14/1116:50
SAI
-
SYD
2 stops22h 00m
Multiple Airlines
Deal found 25/6$957
Thu 3/920:35
SYD
-
SAI
2 stops15h 40m
Multiple Airlines
Sat 12/919:05
SAI
-
SYD
3 stops45h 15m
Multiple Airlines
Deal found 26/6$960

Find flight deals from Sydney to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 June 2026.

Round-trip from

$861

One-way from

$484

Popular in

December

Cheapest in

August

Average price

$897
VietJet Air
  • VietJet Air
  • 30/10-7/11
  • 4 total stops
  • 68h 55m total
  • Sydney to Siem Reap
Search Deals
31/7
  • 31/7
  • 2 total stops
  • 21h 15m total
  • Sydney to Siem Reap
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($470 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 27 June 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

Thu 3/9

10:15-18:05

2 stops34h 50m

Siem Reap–Angkor Intl

Sat 12/9

19:05-07:20

2 stops33h 15m

$909
Fastest return journey

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Wed 2/9

20:50-14:50

1 stop21h 00m

Siem Reap–Angkor Intl

Thu 10/9

15:35-08:20

1 stop13h 45m

$919

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 3/9

10:15-13:15

1 stop30h 00m

Siem Reap–Angkor Intl

Fri 11/9

21:45-08:15

1 stop31h 30m

$926

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 3/9

10:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Thu 10/9

19:40-08:15

1 stop33h 35m

$939

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 3/9

10:15-18:05

2 stops34h 50m

Siem Reap–Angkor Intl

Fri 11/9

19:05-07:20

2 stops57h 15m

$1,067

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 3/9

20:35-14:50

3 stops21h 15m

Siem Reap–Angkor Intl

Sat 12/9

11:55-11:45

3 stops20h 50m

$1,137

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 3/9

11:00-15:10

1 stop31h 10m

Siem Reap–Angkor Intl

Thu 10/9

10:30-10:25

1 stop44h 55m

$1,245

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Fri 10/7

13:00-14:50

2 stops28h 50m

Siem Reap–Angkor Intl

Fri 17/7

15:35-19:20

2 stops24h 45m

$1,558
Cheapest one-way
Fastest single journey

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Fri 31/7

20:35-14:50

2 stops21h 15m

$484

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Sorted by cheapest first

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, August is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $861). Flying from Sydney to Siem Reap in December is currently the most expensive (average of $1,789). 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.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 27 June 2026.
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.
Singapore Airlines
8.2
Very Good
1,555 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

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.
Singapore Airlines
8.2
Very Good
1,555 reviews
Singapore Airlines
8.2
Very Good
1,555 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

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.
Vietnam Airlines
7.7
Good
273 reviews
Singapore Airlines
8.2
Very Good
1,555 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

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

Find useful and relevant information for your journey from Sydney to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    VietJet Air and Vietnam Airlines can get you from Sydney to Siem Reap in just under 30h. Your travel time can differ by up to 4h 50m. 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 ($801), and Singapore Airlines ($832) offers the cheapest pricing from Sydney to Siem Reap. Vietnam Airlines is currently priced 32% 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, August is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $861). Flying from Sydney to Siem Reap in December is currently the most expensive (average of $1,789). 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

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Alternative routes for Sydney to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
Coolangatta to Siem Reap flights

Top 2 airlines flying from Sydney to Siem Reap

Discover the top 2 airlines that operate flights from Sydney to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 27 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$801Average$1,131FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$832Average$1,071FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Siem Reap?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Siem Reap. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Siem Reap?

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sydney to Siem Reap with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Siem Reap flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Siem Reap become cheaper?

Not ready to book yet? You can track prices for flights from Sydney to Siem Reap on Cheapflights with our Price Alert feature and get notified when better prices are available.

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