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$223+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 June, booked 80 days in advance, depart on a Friday or Tuesday 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 September 11, 2025.

Round-trip from

$482
(Mytrip)

One-way from

$223
(Trip.com)

Popular in

January

Cheapest in

August

Average price

$749

Good round-trip deal

$616 or less

Good one-way deal

$538 or less
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. 20% potential increase in price ($203 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Hong Kong Intl to Sydney Kingsford Smith.
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Price to beat on a one-way flight from Hong Kong Intl to Sydney Kingsford Smith.
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Find 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 September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/10. 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.
Mon 11/37:25 amHKG - SYD
2 stops21h 40mMultiple Airlines
Fri 11/710:45 amSYD - HKG
2 stops34h 15mMultiple Airlines
Deal found 9/10$482
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Fri 10/245:40 pmHKG - SYD
2 stops24h 20mMultiple Airlines
Sat 11/110:45 amSYD - HKG
2 stops34h 15mMultiple Airlines
Deal found 9/9$484
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 9/138:35 pmHKG - SYD
1 stop35h 35mMultiple Airlines
Sat 9/209:15 pmSYD - HKG
2 stops23h 35mMultiple Airlines
Deal found 9/10$486
This Booking.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/247:20 pmHKG - SYD
1 stop14h 15mScoot
Sat 11/12:20 pmSYD - HKG
1 stop28h 10mScoot
Deal found 9/9$491
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Mon 9/152:35 pmHKG - SYD
2 stops39h 25mChina Eastern
Wed 10/111:00 amSYD - HKG
2 stops25h 30mChina Eastern
Deal found 9/10$495
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:30 pmHKG - SYD
1 stop17h 35mMultiple Airlines
Wed 11/192:20 pmSYD - HKG
2 stops17h 15mMultiple Airlines
Deal found 9/11$502
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Mon 9/157:50 pmHKG - SYD
1 stop33h 30mMultiple Airlines
Wed 10/111:20 amSYD - HKG
Nonstop9h 50mMultiple Airlines
Deal found 9/10$506
This AirAsia deal was found by Cheapflights users on 9/11. 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 AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:15 pmHKG - SYD
1 stop23h 20mMultiple Airlines
Mon 2/29:50 pmSYD - HKG
1 stop22h 40mMultiple Airlines
Deal found 9/11$508

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 September 11, 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

Mon 3/2

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Tue 3/3

11:15 am-5:50 pm

Nonstop9h 35m

$554

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 3/9

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Fri 3/13

11:15 am-5:50 pm

Nonstop9h 35m

$555

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 3/1

7:10 pm-7:15 am

Nonstop9h 05m

Sydney Kingsford Smith

Tue 3/3

11:05 am-5:30 pm

Nonstop9h 25m

$586

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 3/10

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Sun 3/22

11:15 am-5:50 pm

Nonstop9h 35m

$588

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 2/27

9:20 pm-9:35 am

Nonstop9h 15m

Sydney Kingsford Smith

Tue 3/3

11:05 am-5:30 pm

Nonstop9h 25m

$618

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 9/26

6:30 pm-8:00 pm

1 stop23h 30m

Sydney Kingsford Smith

Sat 10/11

10:15 pm-11:15 am

1 stop16h 00m

$650

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 10/14

7:30 pm-7:45 am

Nonstop9h 15m

Sydney Kingsford Smith

Thu 10/30

11:15 am-5:50 pm

Nonstop9h 35m

$656

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 3/10

7:25 pm-7:55 am

Nonstop9h 30m

Sydney Kingsford Smith

Mon 3/23

7:25 am-5:35 pm

1 stop13h 10m

$672

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 11/11

4:40 pm-8:05 am

2 stops36h 25m

Sydney Kingsford Smith

Wed 11/19

11:15 am-3:40 pm

2 stops31h 25m

$815

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 2/6

7:30 pm-1:55 pm

1 stop15h 25m

Sydney Kingsford Smith

Thu 2/19

11:15 am-5:50 pm

Nonstop9h 35m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
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The best insider tips for Hong Kong to Sydney flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 August 29, 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, February is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of $1,035). Flying from Hong Kong to Sydney in December is currently the most expensive (average of $1,626). 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 September 11, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 23% 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?

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 September 11, 2025.
Get a feel of what it's like to fly with Cathay Pacific, Qantas Airways, and Scoot 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
993 reviews

Crew

8.1

Food

7.3

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
993 reviews
Cathay Pacific
7.6
Good
993 reviews

Crew

8.1

Food

7.3

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Qantas Airways
7.5
Good
905 reviews
Cathay Pacific
7.6
Good
993 reviews

Crew

8.1

Food

7.3

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Scoot
6.7
Okay
308 reviews
Cathay Pacific
7.6
Good
993 reviews

Crew

8.1

Food

7.3

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

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 24 outbound flights from Hong Kong Intl to Kingsford Smith offered by 4 different airlines.

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

    Within the past month, 7 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 can get you from Hong Kong to Sydney in just under 9h 30m. 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 Scoot is currently your cheapest option to Sydney, with prices starting at $348. Additional round-trip tickets that might be worth considering are offered by Hong Kong Airlines and Qantas Airways, with the lowest prices starting at $381 and $581, respectively. These flights start at 57% lower than the current average price 3 months from now.

  • 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 MIAT Mongolian (51%), Finnair (48%) or British Airways (48%) 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 $1,770, our data indicates the cheapest price to be $464. 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, February is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of $1,035). Flying from Hong Kong to Sydney in December is currently the most expensive (average of $1,626). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Hong Kong to Sydney

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$348Average$427FlexibilityNo cancel feeOn-timeN/A
Hong Kong AirlinesCheapest$381Average$544FlexibilityNo cancel feeOn-time65%
Qantas AirwaysCheapest$581Average$848FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$595Average$797FlexibilityNo cancel feeOn-time72%

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