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Cheap flights from Australia to Siem Reap, Cambodia from $453

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAI
20 Jul — 27 Jul1
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 20 June 2026.

Fri 30/1023:10
PER
-
SAI
1 stop16h 50m
Multiple Airlines
Mon 16/1115:45
SAI
-
PER
1 stop23h 15m
Multiple Airlines
Deal found 16/6$771
Fri 30/1012:05
SYD
-
SAI
2 stops34h 00m
VietJet Air
Sat 7/1119:05
SAI
-
SYD
2 stops34h 55m
VietJet Air
Deal found 20/6$893
Fri 23/1011:15
SYD
-
SAI
1 stop13h 50m
Multiple Airlines
Sun 1/1110:00
SAI
-
SYD
1 stop20h 00m
Multiple Airlines
Deal found 20/6$896
Fri 30/1012:05
SYD
-
SAI
1 stop12h 25m
Multiple Airlines
Sun 8/1116:00
SAI
-
SYD
1 stop14h 00m
Multiple Airlines
Deal found 20/6$910
Tue 3/1106:15
MEL
-
SAI
1 stop12h 45m
Multiple Airlines
Tue 17/1115:45
SAI
-
MEL
1 stop28h 00m
Multiple Airlines
Deal found 20/6$910
Fri 23/1011:15
SYD
-
SAI
1 stop13h 50m
Multiple Airlines
Sat 31/1010:00
SAI
-
SYD
1 stop20h 00m
Multiple Airlines
Deal found 20/6$912
Mon 2/1101:30
MEL
-
SAI
2 stops20h 35m
VietJet Air
Tue 17/1119:05
SAI
-
MEL
2 stops24h 30m
VietJet Air
Deal found 20/6$920
Thu 3/910:15
SYD
-
SAI
1 stop11h 05m
Vietnam Airlines
Thu 10/919:40
SAI
-
SYD
1 stop33h 35m
Vietnam Airlines
Deal found 19/6$922
Fri 30/1012:05
SYD
-
SAI
2 stops34h 00m
VietJet Air
Sun 8/1119:05
SAI
-
SYD
2 stops34h 55m
VietJet Air
Deal found 20/6$930
Fri 30/1015:15
SYD
-
SAI
2 stops28h 55m
Vietnam Airlines
Sun 8/1121:30
SAI
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 20/6$936
Sat 24/1015:15
SYD
-
SAI
1 stop29h 40m
Vietnam Airlines
Sat 31/1021:30
SAI
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 20/6$952
Fri 23/1015:15
SYD
-
SAI
2 stops29h 10m
Vietnam Airlines
Sat 31/1021:30
SAI
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 20/6$953

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 20 June 2026.

Round-trip from

$771

One-way from

$453

Popular in

December

Cheapest in

August

Average price

$882
30/10-16/11
  • 30/10-16/11
  • 2 total stops
  • 40h 05m total
  • Australia to Siem Reap
Search Deals
1/11
  • 1/11
  • 1 total stop
  • 12h 45m total
  • Australia to Siem Reap
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($366 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($80 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 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 20 June 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 30/10

23:10-15:00

1 stop16h 50m

Siem Reap–Angkor Intl

Mon 16/11

15:45-16:00

1 stop23h 15m

$771

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sat 24/10

15:15-16:55

1 stop29h 40m

Siem Reap–Angkor Intl

Sat 31/10

21:30-09:50

1 stop32h 20m

$952

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Fri 23/10

15:15-16:25

2 stops29h 10m

Siem Reap–Angkor Intl

Sun 1/11

21:30-09:50

1 stop32h 20m

$966

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

BrisbaneSiem Reap

BNE - SAI

BNESAI

Brisbane

Fri 17/7

18:10-09:40

1 stop18h 30m

Siem Reap–Angkor Intl

Fri 30/10

10:45-10:45

1 stop21h 00m

$1,041

BrisbaneSiem Reap

BNE - SAI

BNESAI

Brisbane

Tue 10/11

18:10-15:55

1 stop24h 45m

Siem Reap–Angkor Intl

Tue 29/12

10:45-16:55

1 stop27h 10m

$1,086

AdelaideSiem Reap

ADL - SAI

ADLSAI

Adelaide

Sat 25/7

17:35-09:40

1 stop18h 35m

Siem Reap–Angkor Intl

Sun 9/8

10:30-08:05

2 stops19h 05m

$1,123

BrisbaneSiem Reap

BNE - SAI

BNESAI

Brisbane

Sat 7/11

23:40-18:05

2 stops45h 25m

Siem Reap–Angkor Intl

Sat 21/11

19:05-22:10

2 stops48h 05m

$1,137

SydneySiem Reap

SYD - SAI

SYDSAI

Sydney Kingsford Smith

Sat 24/10

15:15-16:55

1 stop29h 40m

Siem Reap–Angkor Intl

Sun 1/11

17:55-09:50

2 stops35h 55m

$1,150

AdelaideSiem Reap

ADL - SAI

ADLSAI

Adelaide

Sun 6/9

09:10-09:40

1 stop27h 00m

Siem Reap–Angkor Intl

Tue 8/9

10:30-07:25

1 stop42h 25m

$1,152

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 51 resultsSorted by cheapest first
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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 $368). Flying from Australia to Siem Reap in July is currently the most expensive (average of $776). 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 71 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 20 June 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
1,547 reviews
Check prices

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Crew

8.6

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
1,547 reviews
Singapore Airlines
8.2
Very Good
1,547 reviews
Check prices

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Crew

8.6

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
273 reviews
Singapore Airlines
8.2
Very Good
1,547 reviews
Check prices

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Crew

8.6

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.
Virgin Australia
7.6
Good
463 reviews
Singapore Airlines
8.2
Very Good
1,547 reviews
Check prices

Boarding

8.3

Entertainment

8.1

Overall

8.2

Food

7.8

Crew

8.6

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 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 18h 30m. Australia and Siem Reap are separated by a distance of 6948 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 Brisbane - Siem Reap–Angkor Intl or Sydney Kingsford Smith - 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 $368). Flying from Australia to Siem Reap in July is currently the most expensive (average of $776). 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 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$726Average$1,086FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest$774Average$1,188FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Virgin AustraliaCheapest$1,083Average$1,219FlexibilityNo 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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