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$346+ Cheap flights from Hong Kong (HKG) to Sydney (SYD)

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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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 Monday

Cheap flight deals from Hong Kong to Sydney

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 December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:10 pmHKG - SYD
1 stop20h 10mMultiple Airlines
Sat 1/1012:30 pmSYD - HKG
2 stops25h 40mMultiple Airlines
Deal found 12/10$580
This Qantas Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:25 pmHKG - SYD
Nonstop9h 30mQantas Airways
Tue 1/2011:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/11$598
This Cathay Pacific deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:05 pmHKG - SYD
Nonstop9h 10mCathay Pacific
Mon 1/1911:05 amSYD - HKG
Nonstop9h 25mCathay Pacific
Deal found 12/11$599
This Qantas Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:25 pmHKG - SYD
Nonstop9h 30mQantas Airways
Tue 1/2711:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/11$605
This Qantas Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:25 pmHKG - SYD
Nonstop9h 30mQantas Airways
Sat 1/1711:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/11$637
This Qantas Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:25 pmHKG - SYD
Nonstop9h 30mQantas Airways
Wed 1/2111:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/11$643
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:55 pmHKG - SYD
1 stop15h 25mMultiple Airlines
Mon 1/59:50 pmSYD - HKG
2 stops33h 45mMultiple Airlines
Deal found 12/10$666
This Qantas Airways deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:30 pmHKG - SYD
1 stop14h 55mQantas Airways
Mon 2/211:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/10$678
This Qantas Airways deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:25 pmHKG - SYD
Nonstop9h 30mQantas Airways
Thu 1/811:15 amSYD - HKG
Nonstop9h 35mQantas Airways
Deal found 12/10$711

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 December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$567
(Qantas Airways)

One-way from

$308
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$871

Good round-trip deal

$595 or less

Good one-way deal

$558 or less
Provider with most accurate pricing for Hong Kong Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Hong Kong Intl-Sydney Kingsford Smith flights.
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From Hong Kong Intl to Sydney Kingsford Smith
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One-way flight from Hong Kong Intl to Sydney Kingsford Smith
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Highest demand for flights based on searches. 21% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Hong Kong Intl to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Hong Kong Intl to Sydney Kingsford Smith.
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 12, 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

Thu 3/12

9:20 pm-9:35 am

Nonstop9h 15m

Sydney Kingsford Smith

Sat 3/14

8:45 am-3:05 pm

Nonstop9h 20m

$598

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 2/22

9:20 pm-9:35 am

Nonstop9h 15m

Sydney Kingsford Smith

Sun 3/8

11:05 am-5:30 pm

Nonstop9h 25m

$599

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 2/22

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Tue 3/3

11:15 am-5:50 pm

Nonstop9h 35m

$605

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 12/22

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Tue 1/27

11:15 am-5:50 pm

Nonstop9h 35m

$605

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sat 2/7

9:20 pm-9:35 am

Nonstop9h 15m

Sydney Kingsford Smith

Tue 2/17

11:05 am-5:30 pm

Nonstop9h 25m

$630

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 2/8

9:20 pm-9:35 am

Nonstop9h 15m

Sydney Kingsford Smith

Tue 2/17

8:45 am-3:05 pm

Nonstop9h 20m

$630

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Thu 3/12

7:30 pm-8:05 am

1 stop33h 35m

Sydney Kingsford Smith

Sat 3/14

11:15 am-6:50 pm

1 stop34h 35m

$695

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 3/10

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Sun 3/29

11:10 am-5:55 pm

Nonstop9h 45m

$705

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 2/10

3:10 pm-6:15 am

2 stops36h 05m

$362

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 2/2

12:00 pm-11:45 am

3 stops20h 45m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 15 results
1
2

Compare providers for flights from Hong Kong to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hong Kong to Sydney in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Hong Kong-Sydney flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Hong Kong-Sydney flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Hong Kong-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hong Kong-Sydney flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hong Kong-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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 December 5, 2025.

To ensure you get the cheapest price possible for a flight from Hong Kong to Sydney, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $410). Flying from Hong Kong to Sydney in January is currently the most expensive (average of $733). 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 December 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Hong Kong to Sydney by exploring options for tickets at noon.

How much does it cost to fly round-trip from Hong Kong to Sydney?

The best insider tips for Hong Kong to Sydney flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Hong Kong to Sydney trip
Airports
HKG

Security checks at HKG are quick and easy with advanced screening machines allowing you to leave everything inside your bags, including liquids.

Read more about HKGBy Gabriel Leigh
SYD

After customs at SYD, the train is the easiest way to central Sydney, taking 15-25 minutes. Use an Opal card or contactless payment.

Read more about SYDBy John Walton
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on HKG

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
John Walton

John Walton

Expert on SYD

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

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 December 12, 2025.
Get a feel of what it's like to fly with Cathay Pacific and Qantas Airways from Hong Kong to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,095 reviews

Entertainment

7.8

Crew

8.1

Boarding

7.9

Overall

7.6

Food

7.3

Comfort

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Sep 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Cathay Pacific
7.6
Good
1,095 reviews
Cathay Pacific
7.6
Good
1,095 reviews

Entertainment

7.8

Crew

8.1

Boarding

7.9

Overall

7.6

Food

7.3

Comfort

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Sep 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Qantas Airways
7.5
Good
947 reviews
Cathay Pacific
7.6
Good
1,095 reviews

Entertainment

7.8

Crew

8.1

Boarding

7.9

Overall

7.6

Food

7.3

Comfort

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Sep 2025

PNH - HKG

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?

    To fly from Hong Kong to Sydney, you need to book a flight from Hong Kong Intl (HKG) to Kingsford Smith (SYD). Nonstop flights to Sydney Kingsford Smith from Hong Kong Intl take 9h 10m on average. When it comes time to book airfare, you have a few options: there are 27 outbound flights from Hong Kong Intl to Kingsford Smith offered by 3 different airlines.

  • How popular is this Hong Kong to Sydney flight route?

    Within the past month, 5 users have taken a look at flights from Hong Kong Intl to Sydney Kingsford Smith.

  • How long is the flight from Hong Kong to Sydney?

    Qantas Airways and Cathay Pacific can get you from Hong Kong to Sydney in just under 9h 15m. Your travel time will be generally consistent. The distance from Hong Kong to Sydney is about 4590 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Hong Kong to Sydney round-trip?

    Flying on Hong Kong Airlines is currently your cheapest option to Sydney, with prices starting at $381. Additional round-trip tickets that might be worth considering are offered by Qantas Airways and Cathay Pacific, with the lowest prices starting at $564 and $589, respectively. These flights start at 51% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Hong Kong to Sydney one-way?

    One-way options have recently been found by users for as low as $170 on Scoot. Other airlines that offer cheap prices include Hong Kong Airlines from $299 and Qantas Airways from $472 one-way.

  • What are the most reliable airlines from Hong Kong to Sydney?

    No one likes to see their flight delayed. When booking a flight from Hong Kong to Sydney consider choosing Turkish Airlines (95%), Lufthansa (87%) or Hong Kong Airlines (84%) as they are the most reliable in getting you off to your destination on time.

  • 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 $699, our data indicates the cheapest price to be $308. The most popular route (Hong Kong Intl - Sydney Kingsford Smith), is priced around $523.

  • 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, March is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of $410). Flying from Hong Kong to Sydney in January is currently the most expensive (average of $733). 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.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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Top 3 airlines flying from Hong Kong to Sydney

Discover the top 3 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hong Kong AirlinesCheapest$381Average$499FlexibilityNo cancel feeOn-time65%
Qantas AirwaysCheapest$564Average$750FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$589Average$781FlexibilityNo cancel feeOn-time72%

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