Cheapflights Tip: The best prices from Hong Kong Intl to Sydney Kingsford Smith are usually found in August or October, booked 38 days in advance, depart on a Friday or Wednesday and return on a Monday
Cheap flight deals from Hong Kong to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to Sydney (SYD). 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 27 October 2025.
Popular in
January
Cheapest in
August
Average price
C$ 933
Good one-way deal
C$ 803 or less
Highest demand for flights based on searches. 20% potential increase in price (C$ 393 potential increase over avg. RT price).
Best time to book a flight from Hong Kong to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Hong Kong with our price prediction graph.
Estimated round-trip 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 Hong Kong to Sydney
Prices
Airlines
Delays
More
How far ahead should I book a flight from Hong Kong to Sydney?
Use this chart to determine the optimal time to book a round-trip flight from Hong Kong to Sydney. Price data was last updated on 24 October 2025.
Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Hong Kong to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Hong Kong to Sydney?
Currently, December is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of C$ 556). Flying from Hong Kong to Sydney in January is currently the most expensive (average of C$ 1,051). 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 HKG to SYD?
Find hourly flight availability from Hong Kong to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 October 2025.
When flying from Hong Kong to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Hong Kong to Sydney
Explore weekly flight availability from Hong Kong to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 27 October 2025.
The most flights from HKG to SYD are scheduled on a Sunday (29 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (26 on average).
How often are flights from Hong Kong to Sydney delayed?
About 28% of weekly flights between Hong Kong and Sydney have experienced delays in the past year, with the average delay time being 118 minutes.
What is the most punctual flight time for Hong Kong to Sydney flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Hong Kong to Sydney flights?
Over the past year, Qatar Airways has had the lowest number of delays on this route, with just 13% of flights being delayed.
What’s the top layover airport for flights from Hong Kong to Sydney?
Share of one-stop round-trip flights from Hong Kong to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.
Singapore (SIN) – chosen by Cheapflights users on 67% of one-stop itineraries from Hong Kong to Sydney on Cheapflights.
What’s the fastest layover option from Hong Kong to Sydney?
Shortest average travel time for 1-stop one-way flights from Hong Kong to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 13h 20m.
What’s the fastest layover option from Hong Kong to Sydney?
Shortest average travel time for 1-stop one-way flights from Hong Kong to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 13h 20m.
Which airport typically offers the quickest layover for flights from Hong Kong to Sydney?
Average layover duration for 1-stop one-way flights from Hong Kong to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Singapore (SIN) offer the fastest connection on this route, with an average layover time of 3h 34m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 27 October 2025.
See what other customers who have flown with Cathay Pacific from Hong Kong to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Related info for your journey
Find useful and relevant information for your journey from Hong Kong to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Hong Kong to Sydney flight route?
This flight path from Hong Kong Intl to Sydney Kingsford Smith was viewed by 14 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines flying from Hong Kong to Sydney round-trip?
Hong Kong Airlines, at C$ 642, was found to be the cheapest airline from Hong Kong to Sydney. An alternate airline flying to your destination would be Cathay Pacific. Hong Kong Airlines is 41% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Hong Kong to Sydney?
Before booking your flight to Sydney from Hong Kong, check out the most reliable airlines to get you to your destination on time: Hong Kong Airlines (70%), MIAT Mongolian (60%), Finnair( 55%).
Can I find deals for flights from Hong Kong to Sydney that include hotel bookings?
Yes. In addition to deals on Hong Kong to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Hong Kong to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Sydney.
Can I find deals for business class flights from Hong Kong to Sydney?
Yes. Cheapflights offers flight deals from Hong Kong to Sydney 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 Hong Kong to Sydney?
Currently, December is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of C$ 556). Flying from Hong Kong to Sydney in January is currently the most expensive (average of C$ 1,051). 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.
Browse through other flights departing from Hong Kong. Flights are based on user searches made on Cheapflights and were last updated on 27 October 2025.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 October 2025.
Discover the top 2 airlines that operate flights from Hong Kong to Sydney. 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 629,999 searches. Data last updated 27 October 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Hong Kong to Sydney?
Deals for Hong Kong to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Sydney?
Cheapflights simply makes it quick and affordable to book flights from Hong Kong to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Hong Kong to Sydney with no change fees?
Need flexible booking options for your flight to Sydney from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Hong Kong to Sydney become cheaper?
Of course! You can now track prices for flights from Hong Kong to Sydney 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.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.