Cheap flights from Hong Kong to Sydney from HK$2,060
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 17-8. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
15 May — 22 May1
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 March or August, booked 33 days in advance, depart on a Tuesday or Monday and return on a Tuesday
Cheap flight deals from Hong Kong to Sydney
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
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 15 April 2026.
Sun 1-1111:25
HKG
-
SYD
2 stops30h 10m
Multiple Airlines
Mon 9-1121:50
SYD
-
HKG
1 stop22h 40m
Multiple Airlines
Deal found 10-4HK$4,379
Sun 10-520:45
HKG
-
SYD
1 stop13h 00m
Scoot
Sun 17-520:35
SYD
-
HKG
1 stop25h 10m
Scoot
Deal found 12-4HK$4,418
Fri 8-518:30
HKG
-
SYD
3 stops39h 15m
Multiple Airlines
Mon 18-520:50
SYD
-
HKG
1 stop16h 25m
Multiple Airlines
Deal found 10-4HK$4,441
Sat 6-619:20
HKG
-
SYD
2 stops22h 15m
Multiple Airlines
Sat 11-720:50
SYD
-
HKG
1 stop16h 25m
Multiple Airlines
Deal found 12-4HK$4,457
Thu 4-619:20
HKG
-
SYD
2 stops35h 00m
Multiple Airlines
Wed 17-620:50
SYD
-
HKG
1 stop16h 25m
Multiple Airlines
Deal found 11-4HK$4,473
Sat 16-518:30
HKG
-
SYD
1 stop23h 05m
Multiple Airlines
Wed 15-720:50
SYD
-
HKG
1 stop23h 05m
Multiple Airlines
Deal found 13-4HK$4,480
Sat 9-520:40
HKG
-
SYD
1 stop31h 35m
Multiple Airlines
Sat 16-513:00
SYD
-
HKG
1 stop32h 45m
Multiple Airlines
Deal found 10-4HK$4,488
Thu 21-507:40
HKG
-
SYD
2 stops22h 40m
Multiple Airlines
Wed 27-520:50
SYD
-
HKG
2 stops28h 40m
Multiple Airlines
Deal found 13-4HK$4,496
Tue 21-411:55
HKG
-
SYD
1 stop29h 40m
Multiple Airlines
Fri 1-509:45
SYD
-
HKG
1 stop27h 30m
Multiple Airlines
Deal found 14-4HK$4,504
Thu 11-611:55
HKG
-
SYD
1 stop18h 25m
Multiple Airlines
Mon 15-620:50
SYD
-
HKG
3 stops28h 40m
Multiple Airlines
Deal found 12-4HK$4,512
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 15 April 2026.
Sun 11-1018:30
HKG
-
SYD
1 stop23h 05m
Multiple Airlines
Tue 20-1021:50
SYD
-
HKG
1 stop23h 05m
Multiple Airlines
Deal found 11-4HK$5,107
Mon 18-515:05
HKG
-
SYD
1 stop15h 55m
China Eastern
Sun 31-510:05
SYD
-
HKG
2 stops29h 30m
China Eastern
Deal found 10-4HK$6,642
Mon 4-514:25
HKG
-
SYD
1 stop13h 40m
Singapore Airlines
Mon 18-520:35
SYD
-
HKG
1 stop16h 45m
Singapore Airlines
Deal found 14-4HK$6,807
Sat 25-409:40
HKG
-
SYD
1 stop22h 00m
Garuda Indonesia
Sun 3-511:40
SYD
-
HKG
1 stop20h 05m
Garuda Indonesia
Deal found 10-4HK$7,175
Tue 28-408:45
HKG
-
SYD
1 stop19h 40m
Malaysia Airlines
Tue 12-509:15
SYD
-
HKG
1 stop16h 35m
Malaysia Airlines
Deal found 13-4HK$7,355
Mon 18-519:30
HKG
-
SYD
Nonstop9h 15m
Qantas Airways
Mon 1-610:10
SYD
-
HKG
Nonstop9h 45m
Qantas Airways
Deal found 10-4HK$7,535
Thu 30-418:00
HKG
-
SYD
1 stop12h 00m
Philippine Airlines
Tue 5-510:15
SYD
-
HKG
1 stop28h 20m
Philippine Airlines
Deal found 14-4HK$7,802
Sun 11-1019:30
HKG
-
SYD
Nonstop9h 15m
Qantas Airways
Tue 20-1011:10
SYD
-
HKG
Nonstop9h 45m
Qantas Airways
Deal found 11-4HK$7,535
Sat 5-918:30
HKG
-
SYD
1 stop23h 05m
Multiple Airlines
Sat 5-1210:45
SYD
-
HKG
1 stop27h 30m
Multiple Airlines
Deal found 13-4HK$7,668
Tue 28-409:40
HKG
-
SYD
1 stop22h 00m
Garuda Indonesia
Tue 12-510:10
SYD
-
HKG
2 stops21h 35m
Garuda Indonesia
Deal found 12-4HK$8,240
Sat 25-420:05
HKG
-
SYD
1 stop13h 25m
Qantas Airways
Sun 3-510:10
SYD
-
HKG
Nonstop9h 45m
Qantas Airways
Deal found 14-4HK$7,888
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 15 April 2026.
Thu 21-522:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Wed 27-511:05
SYD
-
HKG
Nonstop10h 05m
Hong Kong Airlines
Deal found 10-4HK$5,428
Tue 19-522:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Mon 25-511:15
SYD
-
HKG
Nonstop9h 55m
Hong Kong Airlines
Deal found 14-4HK$5,444
Tue 5-522:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Mon 18-511:15
SYD
-
HKG
Nonstop9h 55m
Hong Kong Airlines
Deal found 14-4HK$5,452
Thu 11-622:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Mon 15-611:15
SYD
-
HKG
Nonstop9h 55m
Hong Kong Airlines
Deal found 12-4HK$5,608
Thu 7-522:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Wed 20-511:05
SYD
-
HKG
Nonstop10h 05m
Hong Kong Airlines
Deal found 13-4HK$5,616
Tue 5-522:05
HKG
-
SYD
Nonstop9h 30m
Hong Kong Airlines
Sun 17-511:05
SYD
-
HKG
Nonstop10h 05m
Hong Kong Airlines
Deal found 14-4HK$5,632
Last-minute flights from Hong Kong to Sydney
Discover last-minute flight deals from Hong Kong to Sydney. Data last updated 15 April 2026 and is based on user searches.
Tue 21-411:55
HKG
-
SYD
1 stop29h 40m
Multiple Airlines
Fri 1-509:45
SYD
-
HKG
1 stop27h 30m
Multiple Airlines
Deal found 14-4HK$4,504
Tue 5-518:30
HKG
-
SYD
2 stops33h 35m
Multiple Airlines
Thu 14-513:00
SYD
-
HKG
1 stop32h 45m
Multiple Airlines
Deal found 13-4HK$4,527
Tue 5-518:30
HKG
-
SYD
1 stop23h 05m
Multiple Airlines
Mon 18-520:50
SYD
-
HKG
1 stop23h 05m
Multiple Airlines
Deal found 11-4HK$4,535
Fri 8-518:30
HKG
-
SYD
3 stops39h 15m
Multiple Airlines
Mon 18-520:50
SYD
-
HKG
1 stop16h 25m
Multiple Airlines
Deal found 10-4HK$4,441
Sat 9-520:40
HKG
-
SYD
1 stop31h 35m
Multiple Airlines
Sat 16-513:00
SYD
-
HKG
1 stop32h 45m
Multiple Airlines
Deal found 10-4HK$4,488
Sun 10-520:45
HKG
-
SYD
1 stop13h 00m
Scoot
Sun 17-520:35
SYD
-
HKG
1 stop25h 10m
Scoot
Deal found 12-4HK$4,418
Sat 16-518:30
HKG
-
SYD
1 stop23h 05m
Multiple Airlines
Wed 15-720:50
SYD
-
HKG
1 stop23h 05m
Multiple Airlines
Deal found 13-4HK$4,480
Thu 21-507:40
HKG
-
SYD
2 stops22h 40m
Multiple Airlines
Wed 27-520:50
SYD
-
HKG
2 stops28h 40m
Multiple Airlines
Deal found 13-4HK$4,496
Thu 28-511:55
HKG
-
SYD
1 stop18h 25m
Multiple Airlines
Thu 4-613:00
SYD
-
HKG
2 stops25h 30m
Multiple Airlines
Deal found 12-4HK$4,520
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 15 April 2026.
Mon 17-820:45
HKG
-
SYD
1 stop20h 35m
Scoot
Deal found 14-4HK$2,060
Mon 10-820:45
HKG
-
SYD
1 stop20h 35m
Scoot
Deal found 11-4HK$2,084
Mon 31-820:45
HKG
-
SYD
1 stop20h 35m
Scoot
Deal found 10-4HK$2,091
Mon 10-809:25
HKG
-
SYD
2 stops32h 10m
Multiple Airlines
Deal found 11-4HK$2,170
Sun 9-811:00
HKG
-
SYD
2 stops30h 35m
Multiple Airlines
Deal found 10-4HK$2,178
Thu 21-520:45
HKG
-
SYD
1 stop20h 35m
Scoot
Deal found 14-4HK$2,193
Wed 12-819:50
HKG
-
SYD
1 stop33h 30m
VietJet Air
Deal found 13-4HK$2,201
Fri 26-622:40
HKG
-
SYD
2 stops31h 40m
Multiple Airlines
Deal found 13-4HK$2,209
Sun 13-907:45
HKG
-
SYD
2 stops21h 35m
Multiple Airlines
Deal found 10-4HK$2,232
Sun 28-617:50
HKG
-
SYD
2 stops23h 45m
Multiple Airlines
Deal found 13-4HK$2,240
Thu 25-617:50
HKG
-
SYD
2 stops23h 45m
Multiple Airlines
Deal found 10-4HK$2,248
Sun 24-511:40
HKG
-
SYD
1 stop16h 35m
Juneyao Airlines
Deal found 14-4HK$2,264
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 15 April 2026.
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 70,647 searches. Data last updated 15 April 2026.
Use the filters below to find and compare flights from Hong Kong to Sydney that are best for you.
Fly from
Fly to
Route
Departure
Return
Price
Cheapest return flight
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sun 11-10
18:30-20:35
1 stop23h 05m
Sydney Kingsford Smith
Tue 20-10
21:50-17:55
1 stop23h 05m
HK$5,107
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 18-5
15:05-09:00
1 stop15h 55m
Sydney Kingsford Smith
Sun 31-5
10:05-13:35
2 stops29h 30m
HK$6,642
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 4-5
14:25-06:05
1 stop13h 40m
Sydney Kingsford Smith
Mon 18-5
20:35-11:20
1 stop16h 45m
HK$6,807
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sat 25-4
09:40-09:40
1 stop22h 00m
Sydney Kingsford Smith
Sun 3-5
11:40-05:45
1 stop20h 05m
HK$7,175
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Tue 28-4
08:45-06:25
1 stop19h 40m
Sydney Kingsford Smith
Tue 12-5
09:15-23:50
1 stop16h 35m
HK$7,355
Fastest return journey
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Mon 18-5
19:30-06:45
Nonstop9h 15m
Sydney Kingsford Smith
Mon 1-6
10:10-17:55
Nonstop9h 45m
HK$7,535
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sun 11-10
19:30-07:45
Nonstop9h 15m
Sydney Kingsford Smith
Tue 20-10
11:10-17:55
Nonstop9h 45m
HK$7,535
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sat 5-9
18:30-19:35
1 stop23h 05m
Sydney Kingsford Smith
Sat 5-12
10:45-11:15
1 stop27h 30m
HK$7,668
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Thu 30-4
18:00-08:00
1 stop12h 00m
Sydney Kingsford Smith
Tue 5-5
10:15-12:35
1 stop28h 20m
HK$7,802
Hong KongSydney
HKG - SYD
HKGSYD
Hong Kong Intl
Sat 25-4
20:05-11:30
1 stop13h 25m
Sydney Kingsford Smith
Sun 3-5
10:10-17:55
Nonstop9h 45m
HK$7,888
Flights are sorted by cheapest return flights first.
Deals found on 10-4
Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3
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.
HKG-SYD
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 10 April 2026.
The best time to book flights from Hong Kong to Sydney is 33 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, July is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of HK$3,384). Flying from Hong Kong to Sydney in January is currently the most expensive (average of HK$5,131). 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 15 April 2026.
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.
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 15 April 2026.
The most flights from HKG to SYD are scheduled on a Tuesday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).
How often are flights from Hong Kong to Sydney delayed?
About 32% of weekly flights between Hong Kong and Sydney have experienced delays in the past year, with the average delay time being 125 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 Wednesday 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 46% 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 HK$3,815.
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 Melbourne (MEL) have the shortest average one-way travel time for one-stop routes: 12h 55m.
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 Kuala Lumpur (KUL) offer the fastest connection on this route, with an average stopover time of 1h 50m.
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 15 April 2026.
See what other customers who have flown with Singapore Airlines,Cathay Pacific, andQantas 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.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
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 6 different airlines have flights from Hong Kong Intl (HKG) to Kingsford Smith (SYD) on a regular basis. There are 24 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 00m.
How popular is this Hong Kong to Sydney flight route?
This flight path from Hong Kong Intl to Sydney Kingsford Smith was viewed by 1,068 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 15m. China Eastern provides one of the quickest options available for as low as HK$7,535. There are 7387 km between Hong Kong and Sydney. This flight may include one or multiple stops.
What are the cheapest airlines flying from Hong Kong to Sydney round-trip?
Scoot, at HK$1,693, was found to be the cheapest airline from Hong Kong to Sydney.Alternate airlines to your destination round-trip include Hong Kong Airlines and Hainan Airlines. You may be able to fly from Hong Kong to Sydney for 70% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Hong Kong to Sydney one-way?
To fly one-way, consider booking your trip with Scoot, which is currently one of the cheapest options available, starting at HK$1,305. 宿霧太平洋航空 flights start at HK$1,485 while deals on Hainan Airlines start at HK$1,922 one-way.
What are the most reliable airlines from Hong Kong to Sydney?
The top 3 most reliable airlines when flying from Hong Kong to Sydney are Cathay Pacific (75%), MIAT Mongolian (73%) and Hong Kong Airlines (69%).
What are the cheapest flights from Hong Kong to Sydney?
On average you can expect to pay HK$5,234 for a flight from Hong Kong to Sydney. The cheapest flight overall is HK$2,871 while the most popular route, (Hong Kong Intl - Sydney Kingsford Smith) is currently priced at HK$3,157.
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, July is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of HK$3,384). Flying from Hong Kong to Sydney in January is currently the most expensive (average of HK$5,131). 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.
Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Penrith
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines
Alternative routes
Complete your trip
Direct flights to New South Wales
Flights by cabin class
Other flight options
Popular flights
Sydney flight routes
Fly from Hong Kong to Sydney on these airlines
Choose from the following airlines for your flight from Hong Kong to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 15 April 2026.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 April 2026.
Discover the top 6 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 70,647 searches. Data last updated 15 April 2026.
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?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from Hong Kong today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Sydney?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Hong Kong to Sydney.
Can Cheapflights find flights from Hong Kong to Sydney with no change fees?
Yes, we can. To see specific flights from Hong Kong to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Hong Kong to Sydney become cheaper?
Yes, Cheapflights offers price alerts on Hong Kong to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the 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 analyse navigation, to offer and measure personalised 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 your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.