
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | February |
Cheapest in | October |
Average price | $1,070 |
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phnom Penh to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, May is the cheapest month in which you can book a flight from Phnom Penh to Sydney (average of $435). Flying from Phnom Penh to Sydney in January is currently the most expensive (average of $857). 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.
Hong Kong (HKG) – chosen by Cheapflights users on 67% of 1-stop itineraries from Phnom Penh to Sydney on Cheapflights.
Hong Kong (HKG) is the most affordable 1-stop option, with an average round-trip price of $1,432.
Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 12h 50m.
Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 2h 33m.
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Boarding
Crew
Food
Overall
Comfort
Reviews
Anonymous,Feb 2026
SAI - SIN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$469 | Average$527 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$709 | Average$863 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$742 | Average$779 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$821 | Average$1,160 | FlexibilityNo cancel fee | On-time81% |