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Cheap flights from Australia to Siem Reap, Cambodia from $478

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
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Australia to Siem Reap
Explore the most affordable flight options available from Australia to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2026.

Fri 16/1004:45
PER
-
SAI
1 stop11h 05m
Multiple Airlines
Sun 25/1010:10
SAI
-
PER
1 stop17h 20m
Multiple Airlines
Deal found 1/7$819
Tue 18/800:30
MEL
-
SAI
2 stops44h 35m
VietJet Air
Sun 6/919:05
SAI
-
MEL
2 stops24h 30m
VietJet Air
Deal found 28/6$845
Thu 30/720:50
PER
-
SAI
1 stop19h 00m
Multiple Airlines
Mon 3/810:00
SAI
-
PER
1 stop8h 50m
Multiple Airlines
Deal found 28/6$881
Wed 19/810:35
MEL
-
SAI
1 stop14h 20m
Vietnam Airlines
Sun 6/922:35
SAI
-
MEL
1 stop31h 00m
Vietnam Airlines
Deal found 28/6$883
Wed 7/1011:35
MEL
-
SAI
1 stop14h 20m
Vietnam Airlines
Wed 21/1022:35
SAI
-
MEL
1 stop31h 00m
Vietnam Airlines
Deal found 29/6$886
Thu 30/710:35
MEL
-
SAI
1 stop11h 15m
Vietnam Airlines
Sat 29/822:35
SAI
-
MEL
1 stop31h 00m
Vietnam Airlines
Deal found 1/7$894
Tue 18/810:35
MEL
-
SAI
1 stop14h 20m
Vietnam Airlines
Tue 25/822:35
SAI
-
MEL
1 stop31h 00m
Vietnam Airlines
Deal found 28/6$896
Thu 15/1001:25
MEL
-
SAI
1 stop19h 45m
Vietnam Airlines
Sat 24/1022:35
SAI
-
MEL
1 stop30h 50m
Vietnam Airlines
Deal found 29/6$907
Sun 1/1111:25
MEL
-
SAI
1 stop10h 15m
Vietnam Airlines
Sat 7/1121:30
SAI
-
MEL
1 stop31h 55m
Vietnam Airlines
Deal found 2/7$909
Sat 5/909:45
SYD
-
SAI
1 stop26h 30m
Multiple Airlines
Fri 18/915:35
SAI
-
SYD
1 stop13h 45m
Multiple Airlines
Deal found 30/6$912
Thu 12/1120:05
SYD
-
SAI
2 stops24h 00m
Multiple Airlines
Thu 19/1110:00
SAI
-
SYD
1 stop20h 00m
Multiple Airlines
Deal found 2/7$918
Thu 6/810:35
MEL
-
SAI
1 stop10h 45m
Vietnam Airlines
Sat 5/918:05
SAI
-
MEL
1 stop25h 10m
Vietnam Airlines
Deal found 1/7$925

Find flight deals from Australia to Siem Reap

Keep the following information in mind while searching for Australia to Siem Reap flight deals. Data was last updated 3 July 2026.

Round-trip from

$819

One-way from

$478

Popular in

December

Cheapest in

August

Average price

$965
16/10-25/10
  • 16/10-25/10
  • 2 total stops
  • 28h 25m total
  • Australia to Siem Reap
Search Deals
31/7
  • 31/7
  • 2 total stops
  • 39h 40m total
  • Australia to Siem Reap
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($467 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia 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 3 July 2026.
Use the filters below to find and compare flights from Australia to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PerthSiem Reap

PER - SAI

PERSAI

Perth

Fri 16/10

04:45-14:50

1 stop11h 05m

Siem Reap–Angkor Intl

Sun 25/10

10:10-04:30

1 stop17h 20m

$819
Fastest return journey

PerthSiem Reap

PER - SAI

PERSAI

Perth

Thu 30/7

20:50-14:50

1 stop19h 00m

Siem Reap–Angkor Intl

Mon 3/8

10:00-19:50

1 stop8h 50m

$881

MelbourneSiem Reap

MEL - SAI

MELSAI

Melbourne

Tue 18/8

10:35-21:55

1 stop14h 20m

Siem Reap–Angkor Intl

Tue 25/8

22:35-08:35

1 stop31h 00m

$896

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 5/11

11:50-20:30

1 stop12h 40m

Siem Reap–Angkor Intl

Mon 23/11

21:30-09:50

1 stop32h 20m

$968

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Fri 14/8

10:15-18:05

2 stops34h 50m

Siem Reap–Angkor Intl

Tue 18/8

19:05-07:20

2 stops33h 15m

$981

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 15/10

11:15-13:15

1 stop30h 00m

Siem Reap–Angkor Intl

Thu 19/11

17:05-13:15

2 stops16h 10m

$987

MelbourneSiem Reap

MEL - SAI

MELSAI

Melbourne

Fri 30/10

01:30-18:05

2 stops44h 35m

Siem Reap–Angkor Intl

Sun 8/11

19:05-23:35

2 stops24h 30m

$1,000

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Thu 12/11

12:05-18:05

2 stops34h 00m

Siem Reap–Angkor Intl

Thu 19/11

19:05-10:00

2 stops34h 55m

$1,010

MelbourneSiem Reap

MEL - SAI

MELSAI

Melbourne

Sat 31/10

19:25-09:50

1 stop18h 25m

Siem Reap–Angkor Intl

Sun 8/11

10:45-12:10

1 stop21h 25m

$1,022

MelbourneSiem Reap

MEL - SAI

MELSAI

Melbourne

Mon 3/8

00:30-18:05

2 stops44h 35m

Siem Reap–Angkor Intl

Sat 5/9

19:05-22:35

2 stops24h 30m

$1,039

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 49 resultsSorted by cheapest first
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5

Best time to book a flight from Australia to Siem Reap

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

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

Currently, January is the cheapest month in which you can book a flight from Australia to Siem Reap (average of $373). Flying from Australia to Siem Reap in July is currently the most expensive (average of $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.

How far ahead should I book a flight from Australia to Siem Reap?

The best time to book flights from Australia to Siem Reap is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 3 July 2026.
Check out reviews from past customers who have flown with Singapore Airlines,Vietnam Airlines, andVirgin Australia from Australia to Siem Reap to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Overall

8.2

Crew

8.6

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
1,560 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Overall

8.2

Crew

8.6

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
275 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Overall

8.2

Crew

8.6

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.
Virgin Australia
7.6
Good
463 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Food

7.8

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Overall

8.2

Crew

8.6

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 Australia to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Siem Reap from Australia?

    Siem Reap–Angkor Intl (SAI), located 39.7 km from the city centre, is the airport you fly into when you book flights from Australia to Siem Reap.

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

    Departing from Australia to Siem Reap will take you 14h 20m. Australia and Siem Reap are separated by a distance of 7078 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Australia to Siem Reap?

    The most popular route from Australia to Siem Reap is Melbourne - Siem Reap–Angkor Intl. You may also consider Sydney Kingsford Smith - Siem Reap–Angkor Intl or Brisbane - Siem Reap–Angkor Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia 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 Australia to Siem Reap?

    Currently, January is the cheapest month in which you can book a flight from Australia to Siem Reap (average of $373). Flying from Australia to Siem Reap in July is currently the most expensive (average of $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

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

Top 3 airlines flying from Australia to Siem Reap

Discover the top 3 airlines that operate flights from Australia 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 3 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$737Average$1,086FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest$795Average$1,209FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Virgin AustraliaCheapest$1,100Average$1,238FlexibilityNo cancel feeOn-time80%
Search Virgin Australia 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 Australia to Siem Reap?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Australia 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 Australia to Siem Reap?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Siem Reap from Australia.

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

Certainly. Search results for flights to Siem Reap from Australia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Australia to Siem Reap flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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