Find cheap airlines flights from Siem Reap to Sydney

You can choose from 1 airlines that fly from Siem Reap to Sydney, including AirAsia Cambodia, Vietnam Airlines has lowest fares on this route.
AirAsia Cambodia logo AirAsia Cambodia
Airlines are determined based on actual purchased flight tickets from Siem Reap to Sydney according to previous 12 months data from Trip.com.

Find flight deals from Siem Reap to Sydney for the next 3 months. Book one way flights from $238 or round trip flights from $529.

Displayed flight fares from Siem Reap to Sydney are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Siem Reap to Sydney

The distance between Siem Reap and Sydney is approximately 7,265.06 km.

Cheapest one-way flight price$238
Cheapest round-trip ticket price$529
Flight distance7,265.06 km
Popular airlineAirAsia Cambodia
Flight statistics for the Siem Reap–Sydney route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Siem Reap to Sydney (SAI-SYD)?

    Based on Trip.com data, Vietnam Airlines offers one-way fares as low as $238 on Cheapest nonstop routes (e.g. SAI to SYD on Wed, May 27), while Air Cambodia offers Cheapest nonstop round-trips from $529 departing on Thu, May 21 and returning on Tue, May 26.
  • At the moment, several airlines serve connecting flights from Siem Reap to Sydney, including: AirAsia Cambodia Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Siem Reap to Sydney is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Siem Reap to Sydney, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, May 27, with one-way flights priced at just $238.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Vietnam Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Get exclusive promo codes for Trip.com app users.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Siem Reap to Sydney on April 25, 2026 with AirAsia Cambodia, with prices starting at $255.
  • You can land at any one of the following hubs in Sydney, with Siem Reap Angkor International Airport to Sydney Airport (SAI-SYD) is by far the most common option on this route: Sydney Airport (SYD) Western Sydney International Airport (WSI).
  • The time difference between Sydney and Siem Reap is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.