Cheap flights from Siem Reap, Cambodia to Sydney from $463

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — SYD
23 Jul — 30 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Siem Reap to Sydney

Enter your travel dates to find the best prices.

One-way flights from Siem Reap to Sydney
Search for one-way flight options from Siem Reap to Sydney. Find affordable one-way fares based on user searches. Data last updated 23 June 2026.

Tue 18/819:05
SAI
-
SYD
2 stops45h 15m
Multiple Airlines
Deal found 18/6$463
Sat 8/815:35
SAI
-
SYD
1 stop13h 45m
Multiple Airlines
Deal found 20/6$583
Sun 4/1019:05
SAI
-
SYD
2 stops45h 15m
Multiple Airlines
Deal found 20/6$588
Sat 8/819:05
SAI
-
SYD
2 stops33h 15m
VietJet Air
Deal found 20/6$612

Cheapflights Fare Finder

 
Customise your flight search to find flights from Siem Reap to Sydney 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 23 June 2026.
Use the filters below to find and compare flights from Siem Reap to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

Siem ReapSydney

SAI - SYD

SAISYD

Siem Reap–Angkor Intl

Tue 18/8

19:05-19:20

2 stops45h 15m

$463
Fastest single journey

Siem ReapSydney

SAI - SYD

SAISYD

Siem Reap–Angkor Intl

Sat 8/8

15:35-08:20

1 stop13h 45m

$583

Siem ReapSydney

SAI - SYD

SAISYD

Siem Reap–Angkor Intl

Sun 4/10

19:05-20:20

2 stops45h 15m

$588

Siem ReapSydney

SAI - SYD

SAISYD

Siem Reap–Angkor Intl

Sat 8/8

19:05-07:20

2 stops33h 15m

$612

Siem ReapSydney

SAI - SYD

SAISYD

Siem Reap–Angkor Intl

Thu 10/9

19:10-07:35

2 stops33h 25m

$2,114

Flights are sorted by cheapest return flights first.

Deals found on 18/6

Sorted by cheapest first

Best time to book a flight from Siem Reap to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Siem Reap 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.

Related info for your journey

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

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

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

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

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

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

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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Cronulla
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
Coogee

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.

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 Siem Reap to Sydney?

Deals for Siem Reap to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Sydney from Siem Reap by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Siem Reap to Sydney with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Siem Reap today and book when prices fit your budget.

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.