This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
4 Jan — 11 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Hong Kong Intl to Sydney Kingsford Smith are usually found in August or October, booked 80 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from Hong Kong to Sydney
Enter your travel dates to find the best prices.
Cheapest flights from Hong Kong to Sydney
Explore the most affordable flight options available from Hong Kong to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.
Wed 24/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Sun 11/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£423
Wed 17/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Mon 2/211:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£423
Tue 9/1216:10HKG - SYD
1 stop20h 10mHainan Airlines
Mon 15/1221:00SYD - HKG
1 stop15h 10mHainan Airlines
Deal found 3/12£449
Fri 12/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Thu 8/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£531
Wed 24/1218:15HKG - SYD
1 stop23h 20mMultiple Airlines
Sun 11/121:50SYD - HKG
1 stop16h 25mMultiple Airlines
Deal found 3/12£588
Sat 27/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Wed 7/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£611
Tue 9/1210:15HKG - SYD
2 stops33h 00mMultiple Airlines
Mon 15/1218:30SYD - HKG
2 stops17h 40mMultiple Airlines
Deal found 3/12£618
Best flights from Hong Kong to Sydney
Discover carefully curated flight deals from Hong Kong to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 December 2025.
Tue 3/319:25HKG - SYD
Nonstop9h 30mQantas Airways
Sat 7/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£423
Thu 12/321:20HKG - SYD
Nonstop9h 15mCathay Pacific
Sat 14/311:05SYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 2/12£446
Thu 21/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Tue 26/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 4/12£423
Sun 22/219:05HKG - SYD
Nonstop9h 10mCathay Pacific
Sun 8/311:05SYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 3/12£447
Tue 12/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Thu 21/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 4/12£423
Sat 21/321:20HKG - SYD
Nonstop9h 15mCathay Pacific
Mon 23/308:45SYD - HKG
Nonstop9h 20mCathay Pacific
Deal found 3/12£447
Mon 4/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Wed 13/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 4/12£423
Wed 6/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Thu 14/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 4/12£423
Mon 11/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Wed 20/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 4/12£423
Mon 4/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Mon 18/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 3/12£423
Thu 12/319:25HKG - SYD
Nonstop9h 30mQantas Airways
Sat 14/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 2/12£447
Sat 21/319:25HKG - SYD
Nonstop9h 30mQantas Airways
Sun 22/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£447
Direct flights from Hong Kong to Sydney
Explore direct flight options from Hong Kong to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 December 2025.
Wed 24/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Sun 11/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£423
Mon 4/519:30HKG - SYD
Nonstop9h 15mQantas Airways
Mon 18/510:10SYD - HKG
Nonstop9h 45mQantas Airways
Deal found 3/12£423
Fri 20/319:25HKG - SYD
Nonstop9h 30mQantas Airways
Tue 24/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£432
Thu 12/321:20HKG - SYD
Nonstop9h 15mCathay Pacific
Sat 14/311:05SYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 2/12£446
Sat 7/319:05HKG - SYD
Nonstop9h 10mCathay Pacific
Wed 11/311:05SYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 2/12£447
Tue 3/321:20HKG - SYD
Nonstop9h 15mCathay Pacific
Sun 22/311:05SYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 4/12£447
Sat 28/219:25HKG - SYD
Nonstop9h 30mQantas Airways
Tue 24/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£469
Fri 27/208:45HKG - SYD
Nonstop9h 05mCathay Pacific
Mon 23/308:45SYD - HKG
Nonstop9h 20mCathay Pacific
Deal found 4/12£472
Fri 27/219:25HKG - SYD
Nonstop9h 30mQantas Airways
Tue 24/311:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£474
Last-minute flights from Hong Kong to Sydney
Discover last-minute flight deals from Hong Kong to Sydney. Data last updated 5 December 2025 and is based on user searches.
Tue 9/1216:10HKG - SYD
1 stop20h 10mHainan Airlines
Mon 15/1221:00SYD - HKG
1 stop15h 10mHainan Airlines
Deal found 3/12£449
Fri 12/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Thu 8/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£531
Wed 17/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Mon 2/211:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 4/12£423
Wed 24/1219:25HKG - SYD
Nonstop9h 30mQantas Airways
Sun 11/111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 3/12£423
Sun 18/116:25HKG - SYD
1 stop16h 55mMultiple Airlines
Sun 25/112:15SYD - HKG
1 stop22h 55mMultiple Airlines
Deal found 4/12£543
Mon 19/116:25HKG - SYD
3 stops34h 50mMultiple Airlines
Sat 24/113:35SYD - HKG
2 stops25h 45mMultiple Airlines
Deal found 2/12£538
One-way flights from Hong Kong to Sydney
Search for one-way flight options from Hong Kong to Sydney. Find affordable one-way fares based on user searches. Data last updated 5 December 2025.
Sun 21/1220:05HKG - SYD
2 stops33h 00mMultiple Airlines
Deal found 3/12£223
Thu 18/1207:40HKG - SYD
3 stops45h 25mMultiple Airlines
Deal found 3/12£235
Fri 19/1211:55HKG - SYD
2 stops18h 20mMultiple Airlines
Deal found 3/12£239
Sun 21/1219:50HKG - SYD
1 stop33h 15mVietJet Air
Deal found 3/12£243
Thu 18/1222:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Deal found 3/12£253
Tue 16/1222:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Deal found 3/12£259
Sun 8/322:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Deal found 3/12£260
Mon 9/322:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Deal found 3/12£263
Sun 21/1222:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Deal found 3/12£265
Find 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 5 December 2025.
Customise your flight search to find flights from Hong Kong to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from Hong Kong to Sydney that are best for you.
Fly from
Hong Kong
Fly to
Sydney
Route
Depart
Return
Price
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Tue 3/3
19:25-07:55
Nonstop9h 30m
Sydney Kingsford Smith
Sat 7/3
11:15-17:50
Nonstop9h 35m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Thu 21/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Tue 26/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Tue 12/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Thu 21/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 4/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Wed 13/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Wed 6/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Thu 14/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 11/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Wed 20/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 4/5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Mon 18/5
10:10-17:55
Nonstop9h 45m
£423
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Thu 12/3
21:20-09:35
Nonstop9h 15m
Sydney Kingsford Smith
Sat 14/3
11:05-17:30
Nonstop9h 25m
£446
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Thu 12/3
19:25-07:55
Nonstop9h 30m
Sydney Kingsford Smith
Sat 14/3
11:15-17:50
Nonstop9h 35m
£447
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sun 22/2
19:05-07:15
Nonstop9h 10m
Sydney Kingsford Smith
Sun 8/3
11:05-17:30
Nonstop9h 25m
£447
Flights are sorted by cheapest return flights first.
Deals found on 3/12
Showing 1-10 of 22 results
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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 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 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 return flight from Hong Kong to Sydney. Price data was last updated on 28 November 2025.
The best time to book flights from Hong Kong to Sydney is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Hong Kong to Sydney?
Currently, March is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of £307). Flying from Hong Kong to Sydney in January is currently the most expensive (average of £563). 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 5 December 2025.
It’s optimal to fly from Hong Kong to Sydney at midday. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the morning.
How much does it cost for a return flight from Hong Kong to Sydney?
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 5 December 2025.
The most flights from HKG to SYD are scheduled on a Tuesday (28 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 35% of weekly flights between Hong Kong and Sydney have experienced delays in the past year, with the average delay time being 117 minutes.
What is the most punctual flight time for Hong Kong to Sydney flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday 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, Cathay Pacific have had the lowest number of delays on this route, with just 20% of flights being delayed.
What’s the top stopover airport for flights from Hong Kong to Sydney?
Share of one-stop return flights from Hong Kong to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Singapore (SIN) – chosen by Cheapflights users on 67% of one-stop itineraries from Hong Kong to Sydney on Cheapflights.
What’s the cheapest stopover airport for flights from Hong Kong to Sydney?
Average return fare for one-stop flights from Hong Kong to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Singapore (SIN) is the most affordable one-stop option, with an average return flight price of £288.
What’s the fastest stopover option from Hong Kong to Sydney?
Shortest average travel time for one-stop one-way flights from Hong Kong to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Manila (MNL) have the shortest average one-way travel time for one-stop routes: 12h 45m.
Which airport typically offers the quickest stopover for flights from Hong Kong to Sydney?
Average stopover duration for one-stop one-way flights from Hong Kong to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Manila (MNL) offer the fastest connection on this route, with an average stopover time of 2h 03m.
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 5 December 2025.
See what other customers who have flown with Cathay Pacific and Qantas Airways 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.
What airports do I use to fly from Hong Kong to Sydney?
You will need to book a flight from Hong Kong Intl to Sydney Kingsford Smith if you want to fly from Hong Kong to Sydney. At least 2 different airlines have flights from Hong Kong Intl (HKG) to Kingsford Smith (SYD) on a regular basis. There are 27 flights to Sydney from the Hong Kong airport per day. If you manage to book one that is nonstop, then you can expect the flight time from HKG to SYD to be around 9h 05m.
How popular is this Hong Kong to Sydney flight route?
The Hong Kong Intl to Sydney Kingsford Smith flight path was viewed by 43 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Hong Kong to Sydney?
A quick flight from Hong Kong to Sydney can take about 9h 30m. Qantas Airways provides one of the quickest options available for as low as £423. There are 4590 mi between Hong Kong and Sydney. Most flights are nonstop.
What are the cheapest airlines flying from Hong Kong to Sydney round-trip?
Currently priced at £422, Qantas Airways will fly you from Hong Kong to Sydney and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Cathay Pacific for as low as £456. Users have found that Qantas Airways is 28% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Hong Kong to Sydney one-way?
To fly one-way, consider booking your trip with Hong Kong Airlines, which is currently one of the cheapest options available, starting at £229. Qantas Airways flights start at £344 while deals on Cathay Pacific start at £428 one-way.
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: Turkish Airlines (95%), Lufthansa (87%), Hong Kong Airlines( 84%).
What are the cheapest flights from Hong Kong to Sydney?
Looking for the cheapest flight from Hong Kong to Sydney? While on average our users pay £571, our data indicates the cheapest price to be £258. The most popular route (Hong Kong Intl - Sydney Kingsford Smith), is priced around £262.
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, March is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of £307). Flying from Hong Kong to Sydney in January is currently the most expensive (average of £563). 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 5 December 2025.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 December 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 858,174 searches. Data last updated 5 December 2025.
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 Hong Kong to Sydney?
Cheapflights helps you search for flights from Hong Kong to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Sydney?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Hong Kong to Sydney for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Hong Kong to Sydney with no change fees?
Certainly. Search results for flights to Sydney from Hong Kong shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Hong Kong to Sydney become cheaper?
Not ready to book yet? You can track prices for flights from Hong Kong to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.
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