Find flights
When to book
Airlines
FAQs

Cheap flights from Sydney to Siem Reap, Cambodia from $859

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAI
9 Sep — 16 Sep1
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 10 August 2026.

Tue 17/1122:15 -
1 stop15h 05m
Wed 25/1119:05 -
2 stops36h 25m
Deal found 6/8$859
Fri 30/1013:25 -
2 stops30h 35m
Sat 14/1119:05 -
2 stops34h 55m
Deal found 6/8$919
Fri 30/1015:15 -
1 stop32h 25m
Sat 14/1121:30 -
1 stop32h 20m
Deal found 6/8$922
Thu 22/1011:15 -
1 stop30h 00m
Thu 5/1121:30 -
1 stop32h 20m
Deal found 8/8$924
Sat 31/1020:05 -
2 stops22h 55m
Sat 7/1119:05 -
2 stops34h 55m
Deal found 8/8$941
Fri 13/1111:50 -
1 stop12h 40m
Fri 18/1221:30 -
1 stop32h 20m
Deal found 10/8$952
Fri 13/1112:05 -
2 stops34h 00m
Fri 18/1219:05 -
2 stops58h 55m
Deal found 10/8$1,008

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 10 August 2026.

Round-trip from

$859

Popular in

December

Cheapest in

August

Average price

$782
17/11-25/11
  • 17/11-25/11
  • 3 total stops
  • 51h 30m total
  • Sydney to Siem Reap
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($403 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 10 August 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 Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 30/10

13:25-16:00

2 stops30h 35m

Siem Reap–Angkor Intl

Sat 14/11

19:05-10:00

2 stops34h 55m

$919

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 30/10

15:15-19:40

1 stop32h 25m

Siem Reap–Angkor Intl

Sat 14/11

21:30-09:50

1 stop32h 20m

$922

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Thu 22/10

11:15-13:15

1 stop30h 00m

Siem Reap–Angkor Intl

Thu 5/11

21:30-09:50

1 stop32h 20m

$924

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sat 31/10

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Sat 7/11

16:00-09:50

1 stop13h 50m

$990

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Thu 22/10

11:15-18:05

2 stops34h 50m

Siem Reap–Angkor Intl

Thu 5/11

19:05-10:00

2 stops58h 55m

$1,206

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sat 31/10

15:15-17:40

2 stops30h 25m

Siem Reap–Angkor Intl

Sat 7/11

17:05-09:50

3 stops36h 45m

$1,416
Fastest return journey

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Wed 2/9

10:15-18:20

1 stop11h 05m

Siem Reap–Angkor Intl

Fri 11/9

18:05-12:15

1 stop15h 10m

$3,874
Cheapest one-way

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Wed 9/12

12:05-18:05

2 stops34h 00m

$935

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 21/12

11:45-09:15

2 stops25h 30m

$1,130

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 22/1

12:05-18:05

2 stops34h 00m

$1,199

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 15 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
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 $782). Flying from Sydney to Siem Reap in December is currently the most expensive (average of $1,745). 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 10 August 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
1,584 reviews
Check prices

Entertainment

8.1

Food

7.8

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

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
1,584 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Food

7.8

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

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
284 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Food

7.8

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

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?

    Vietnam Airlines can get you from Sydney to Siem Reap in just under 32h 25m. Your travel time can differ by up to . The distance between Sydney and Siem Reap is about 7229 km.

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

    According to our current data, Vietnam Airlines ($782), and Singapore Airlines ($812) 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 $782). Flying from Sydney to Siem Reap in December is currently the most expensive (average of $1,745). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$782Average$1,128FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$812Average$1,072FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.