Cheap Flights from Phnom Penh to Sydney from US$255

Frequently Asked Questions

• What are the cheapest flights from Phnom Penh to Sydney (KTI-SYD)?

  Based on Trip.com data, Air Cambodia offers one-way fares as low as US$255 on Cheapest nonstop routes (e.g. KTI to SYD on Thu, Jun 25), while Vietnam Airlines offers Cheapest nonstop round-trips from US$567 departing on Sat, Jun 20 and returning on Thu, Jun 25.

• Which airlines offer direct flights from Phnom Penh to Sydney?

  At the moment, you can catch a nonstop flight from Phnom Penh to Sydney with the following airlines, including: Qatar Airways AirAsia Cambodia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Phnom Penh to Sydney?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Phnom Penh 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.

• How can I find the best deals on flights from Phnom Penh to Sydney?

  To find best deals on flights from Phnom Penh 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 Thu, Jun 25, with one-way flights priced at just US$255.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Cambodia.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Sydney travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Phnom Penh (KTI) to Sydney (SYD) the cheapest?

  The cheapest months to fly from Phnom Penh to Sydney is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Phnom Penh to Sydney on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Phnom Penh to Sydney on June 19, 2026 with Vietnam Airlines, with prices starting at US$567.

• Which airports can I fly to for Sydney from Phnom Penh?

  You can land at any one of the following hubs in Sydney, with Techo International Airport to Sydney Airport (KTI-SYD) is by far the most common option on this route: Sydney Airport (SYD) Western Sydney International Airport (WSI).

• Is there any time difference between Phnom Penh and Sydney?

  The time difference between Sydney and Phnom Penh is 3h.

• How do I change or cancel my ticket from Phnom Penh to Sydney?

  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.