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Cheap flights from Sydney to Siem Reap

SYD — SAI
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Sydney to Siem Reap

Keep the following information in mind while searching for Sydney to Siem Reap flight deals. Data was last updated 17 October 2025.

Popular in

January

Cheapest in

August

Average price

$1,032
Highest demand for flights based on searches. 27% potential increase in price ($667 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($112 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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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 Region of Siem Reap?

Currently, September is the cheapest month in which you can book a flight from Sydney to Region of Siem Reap (average of $728). Flying from Sydney to Region of Siem Reap in January is currently the most expensive (average of $1,127). 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.

What is the cheapest time of day to fly from SYD to SI?

Find hourly flight availability from Sydney to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 October 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Region of Siem Reap at midday. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the evening.

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 17 October 2025.
Get a feel of what it's like to fly with Singapore Airlines and Vietnam Airlines from Sydney to Siem Reap by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Singapore Airlines
8.1
Very Good
1,382 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Vietnam Airlines
7.5
Good
203 reviews
Singapore Airlines
8.1
Very Good
1,382 reviews
Check prices

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

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.

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

    For a flight from Sydney to Siem Reap, you will be flying from Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city.

  • 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 Region of Siem Reap?

    Currently, September is the cheapest month in which you can book a flight from Sydney to Region of Siem Reap (average of $728). Flying from Sydney to Region of Siem Reap in January is currently the most expensive (average of $1,127). 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

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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.
Sydney to Phnom Penh 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$758Average$994FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$884Average$1,505FlexibilityNo 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?

When you search for this flight from Sydney to Siem Reap, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sydney 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 Sydney.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Siem Reap, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Sydney to Siem Reap and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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