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$319+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
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Cheapflights Tip: The best prices from Hong Kong Intl to Sydney Kingsford Smith are usually found in March or May, booked 18 days in advance, depart on a Wednesday or Sunday and return on a Friday

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 August 11, 2026.

This Hong Kong Airlines deal was found by Cheapflights users on 8/10. 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 Hong Kong Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:05 pm -
Nonstop9h 30m
Mon 9/1411:15 am -
Nonstop9h 55m
Deal found 8/10$586
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:45 pm -
1 stop13h 00m
Thu 9/101:00 pm -
2 stops32h 35m
Deal found 8/11$602
This Vietnam Airlines deal was found by Cheapflights users on 8/10. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/232:30 pm -
1 stop19h 45m
Tue 9/810:15 am -
1 stop33h 10m
Deal found 8/10$603
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:05 pm -
Nonstop9h 30m
Mon 9/711:15 am -
Nonstop9h 55m
Deal found 8/10$604
This AirAsia deal was found by Cheapflights users on 8/7. 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 AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:55 am -
1 stop18h 25m
Mon 10/199:50 pm -
1 stop16h 25m
Deal found 8/7$609
This CheapOair deal was found by Cheapflights users on 8/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:45 pm -
1 stop20h 35m
Thu 9/38:35 pm -
1 stop25h 10m
Deal found 8/7$610
This Booking.com deal was found by Cheapflights users on 8/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:15 pm -
1 stop25h 45m
Wed 10/79:50 pm -
1 stop16h 25m
Deal found 8/9$611
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Mon 8/248:45 pm -
2 stops19h 25m
Fri 8/289:45 am -
1 stop27h 30m
Deal found 8/9$613
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Sun 8/308:45 pm -
1 stop20h 35m
Mon 9/711:25 am -
1 stop12h 55m
Deal found 8/8$614
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:15 pm -
1 stop34h 30m
Sat 10/242:00 pm -
1 stop28h 40m
Deal found 8/7$615
This Vietnam Airlines deal was found by Cheapflights users on 8/10. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:30 pm -
1 stop19h 45m
Thu 11/1211:50 am -
1 stop32h 35m
Deal found 8/10$621
This Mytrip deal was found by Cheapflights users on 8/9. 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 9/102:55 pm -
2 stops26h 25m
Thu 9/171:00 pm -
1 stop32h 45m
Deal found 8/9$622

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 August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$586
(Hong Kong Airlines)

One-way from

$319
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$675

Good round-trip deal

$655 or less

Good one-way deal

$775 or less
Provider with most accurate pricing for Hong Kong Intl-Sydney Kingsford Smith flight deals.
Search Deals
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
Search Deals
One-way flight from Hong Kong Intl to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
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.
Search Deals

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 August 11, 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

Depart

Return

Price

Cheapest round-trip

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Tue 9/22

2:30 pm-12:15 pm

1 stop19h 45m

Sydney Kingsford Smith

Wed 10/7

3:15 pm-1:30 pm

1 stop25h 15m

$694

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Sat 8/22

10:05 pm-9:35 am

Nonstop9h 30m

Sydney Kingsford Smith

Sun 8/30

11:05 am-7:10 pm

Nonstop10h 05m

$718

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Thu 8/27

8:45 am-6:25 am

1 stop19h 40m

Sydney Kingsford Smith

Thu 9/3

9:15 am-11:50 pm

1 stop16h 35m

$778
Quickest round-trip

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Sun 9/6

9:35 pm-8:40 am

Nonstop9h 05m

Sydney Kingsford Smith

Tue 9/8

7:40 am-3:10 pm

Nonstop9h 30m

$912

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Tue 9/1

7:30 pm-6:45 am

Nonstop9h 15m

Sydney Kingsford Smith

Wed 9/16

10:10 am-5:55 pm

Nonstop9h 45m

$927

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Thu 10/22

7:30 pm-7:45 am

Nonstop9h 15m

Sydney Kingsford Smith

Fri 10/30

11:15 am-5:50 pm

Nonstop9h 35m

$927

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Wed 8/26

7:30 pm-6:45 am

Nonstop9h 15m

Sydney Kingsford Smith

Thu 9/3

6:00 am-5:55 pm

1 stop13h 55m

$942

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Thu 8/27

7:30 pm-6:45 am

Nonstop9h 15m

Sydney Kingsford Smith

Thu 9/3

7:00 am-5:55 pm

1 stop12h 55m

$942
Cheapest one-way

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Sun 12/20

2:00 pm-10:45 am

1 stop17h 45m

$324

Hong KongSydney

HKG Hong Kong Intl - SYD Sydney Kingsford Smith

HKGSYD

Hong Kong Intl

Tue 10/27

4:40 pm-10:00 am

2 stops38h 20m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 20 resultsSorted by cheapest first
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 August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hong Kong-Sydney flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

To ensure you get the cheapest price possible for a flight from Hong Kong to Sydney, you should look to book at least 17 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 $616). Flying from Hong Kong to Sydney in January is currently the most expensive (average of $955). 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 August 11, 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 to fly round-trip from Hong Kong to Sydney?

Airfare is below average for this route at the moment.

Hong Kong to Sydney flights typically cost between $588 and $802 in September.
The cheapest round-trip price found within the last 5 days was $586 on Hong Kong Airlines (Sep 5-Sep 14).

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
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on HKG

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

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 August 11, 2026.
Get a feel of what it's like to fly with Cathay Pacific,Qantas Airways, andHong Kong Airlines 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
1,448 reviews

Comfort

7.5

Crew

8.1

Entertainment

7.7

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,448 reviews
Cathay Pacific
7.6
Good
1,448 reviews

Comfort

7.5

Crew

8.1

Entertainment

7.7

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Qantas Airways
7.5
Good
1,081 reviews
Cathay Pacific
7.6
Good
1,448 reviews

Comfort

7.5

Crew

8.1

Entertainment

7.7

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Hong Kong Airlines
6.3
Okay
31 reviews
Cathay Pacific
7.6
Good
1,448 reviews

Comfort

7.5

Crew

8.1

Entertainment

7.7

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

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 15m on average. When it comes time to book airfare, you have a few options: there are 26 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, 3 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?

    Hong Kong Airlines and Vietnam Airlines can get you from Hong Kong to Sydney in just under 9h 30m. Your travel time can differ by up to 10h 15m. The distance from Hong Kong to Sydney is about 4590 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $449. Additional round-trip tickets that might be worth considering are offered by Qantas Airways and Cathay Pacific, with the lowest prices starting at $558 and $591, respectively. These flights start at 40% 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 $307 on Hong Kong Airlines. Other airlines that offer cheap prices include Qantas Airways from $472 and Cathay Pacific from $532 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 Hong Kong Airlines (71%), Turkish Airlines (71%) or Qantas Airways (61%) 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 $848, our data indicates the cheapest price to be $586. The most popular route (Hong Kong Intl - Sydney Kingsford Smith), is priced around $1,167.

  • 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 $616). Flying from Hong Kong to Sydney in January is currently the most expensive (average of $955). 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
Coogee
Manly

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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 August 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hong Kong AirlinesCheapest$449Average$582FlexibilityNo cancel feeOn-time65%
Qantas AirwaysCheapest$558Average$776FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$591Average$885FlexibilityNo cancel feeOn-time72%

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