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Cheap flights from Sydney to Siem Reap, Cambodia

SYD — SAI
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap 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 24 October 2025.

Popular in

January

Cheapest in

August

Average price

$1,030
Highest demand for flights based on searches. 27% potential increase in price ($664 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($113 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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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

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

Use this chart to determine the optimal time to book a return flight from Sydney to Siem Reap. Price data was last updated on 17 October 2025.

To ensure you get the cheapest price possible for a flight from Sydney to Siem Reap, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $727). Flying from Sydney to Siem Reap in January is currently the most expensive (average of $1,125). 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 SAI?

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 24 October 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to 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 24 October 2025.
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
8.1
Very Good
1,386 reviews
Check prices

Food

7.7

Comfort

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.1
Very Good
1,386 reviews
Singapore Airlines
8.1
Very Good
1,386 reviews
Check prices

Food

7.7

Comfort

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Vietnam Airlines
7.5
Good
207 reviews
Singapore Airlines
8.1
Very Good
1,386 reviews
Check prices

Food

7.7

Comfort

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

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

    According to our current data, Vietnam Airlines ($756), and Singapore Airlines ($882) offers the cheapest pricing from Sydney to Siem Reap. Vietnam Airlines is currently priced 34% 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, September is the cheapest month in which you can book a flight from Sydney to Siem Reap (average of $727). Flying from Sydney to Siem Reap in January is currently the most expensive (average of $1,125). 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.

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Browse thousands of different options on Cheapflights for your next trip

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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 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$756Average$996FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$882Average$1,503FlexibilityNo cancel feeOn-time81%
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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.

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