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Cheap flights from Hong Kong to Sydney from £163

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SYD
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hong Kong Intl to Sydney Kingsford Smith are usually found in August or October, booked 38 days in advance, depart on a Thursday or Friday and return on a Tuesday

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 17 October 2025.

Round-trip from

£375

One-way from

£163

Popular in

January

Cheapest in

August

Average price

£497

Good round-trip deal

£445 or less

Good one-way deal

£385 or less
28/10-2/11
  • 28/10-2/11
  • 2 total stops
  • 50h 50m total
  • Hong Kong to Sydney
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VietJet Air
  • VietJet Air
  • 3/12
  • 1 total stop
  • 33h 15m total
  • Hong Kong to Sydney
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Highest demand for flights based on searches. 20% potential increase in price (£113 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in October 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

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 17 October 2025.

Tue 28/1018:15HKG - SYD
1 stop23h 20mMultiple Airlines
Tue 4/1121:50SYD - HKG
1 stop16h 25mMultiple Airlines
Deal found 17/10£371
Tue 28/1018:15HKG - SYD
1 stop23h 20mMultiple Airlines
Sun 2/1110:45SYD - HKG
1 stop27h 30mMultiple Airlines
Deal found 17/10£375
Sun 26/1018:15HKG - SYD
1 stop23h 20mMultiple Airlines
Tue 4/1121:50SYD - HKG
1 stop22h 40mMultiple Airlines
Deal found 16/10£376
Tue 4/1117:25HKG - SYD
2 stops24h 10mMultiple Airlines
Tue 11/1121:50SYD - HKG
2 stops28h 15mMultiple Airlines
Deal found 16/10£377
Thu 20/1112:00HKG - SYD
1 stop18h 15mMultiple Airlines
Sun 30/1110:45SYD - HKG
1 stop27h 30mMultiple Airlines
Deal found 16/10£413
Thu 13/1119:25HKG - SYD
Nonstop9h 30mQantas Airways
Sat 15/1111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 15/10£420
Mon 27/1019:25HKG - SYD
Nonstop9h 30mQantas Airways
Sun 2/1111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 17/10£421
Thu 23/1019:30HKG - SYD
Nonstop9h 15mQantas Airways
Wed 5/1111:15SYD - HKG
Nonstop9h 35mQantas Airways
Deal found 17/10£422
Sat 29/1112:00HKG - SYD
1 stop18h 15mMultiple Airlines
Sat 6/1206:35SYD - HKG
3 stops40h 40mMultiple Airlines
Deal found 15/10£427

Cheapflights Fare Finder

 
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 17 October 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

Sat 14/3

22:25-10:55

Nonstop9h 30m

Sydney Kingsford Smith

Wed 18/3

12:35-19:25

Nonstop9h 50m

£375

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Thu 6/11

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Tue 11/11

11:15-17:50

Nonstop9h 35m

£420

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 31/10

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Tue 4/11

11:15-17:50

Nonstop9h 35m

£421

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sat 14/3

19:05-07:15

Nonstop9h 10m

Sydney Kingsford Smith

Tue 17/3

11:05-17:30

Nonstop9h 25m

£443

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 17/3

19:05-07:15

Nonstop9h 10m

Sydney Kingsford Smith

Wed 18/3

11:05-17:30

Nonstop9h 25m

£444

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 15/3

19:05-07:15

Nonstop9h 10m

Sydney Kingsford Smith

Sat 21/3

08:45-15:05

Nonstop9h 20m

£446

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 13/3

21:20-09:35

Nonstop9h 15m

Sydney Kingsford Smith

Tue 24/3

08:45-15:05

Nonstop9h 20m

£446

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 16/3

21:20-09:35

Nonstop9h 15m

Sydney Kingsford Smith

Mon 20/4

07:40-15:15

Nonstop9h 35m

£468

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 10/3

18:15-20:35

1 stop23h 20m

Sydney Kingsford Smith

Sun 22/3

21:50-17:30

1 stop22h 40m

£474

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sat 14/3

18:20-14:40

1 stop17h 20m

Sydney Kingsford Smith

Tue 17/3

21:25-17:20

1 stop22h 55m

£535

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 20 results
1
2

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

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 October 2025.

The best time to book flights from Hong Kong to Sydney is 38 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, December is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of £294). Flying from Hong Kong to Sydney in January is currently the most expensive (average of £559). 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 17 October 2025.

It’s optimal to fly from Hong Kong to Sydney at midday. By choosing this option you can save up to 27% 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?

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 17 October 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.
Cathay Pacific
7.6
Good
1,028 reviews
Check prices

Overall

7.6

Comfort

7.6

Food

7.3

Boarding

7.9

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 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
1,028 reviews
Cathay Pacific
7.6
Good
1,028 reviews
Check prices

Overall

7.6

Comfort

7.6

Food

7.3

Boarding

7.9

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 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
918 reviews
Cathay Pacific
7.6
Good
1,028 reviews
Check prices

Overall

7.6

Comfort

7.6

Food

7.3

Boarding

7.9

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 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?

    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 48 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 10m. Hong Kong Airlines provides one of the quickest options available for as low as £443. 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 £430, 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 £454. Users have found that Qantas Airways is 27% cheaper than the other options available to this destination.

  • 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: Hong Kong Airlines (70%), MIAT Mongolian (60%), Finnair( 55%).

  • 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 £718, our data indicates the cheapest price to be £232. The most popular route (Hong Kong Intl - Sydney Kingsford Smith), is priced around £261.

  • 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 holiday 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, December is the cheapest month in which you can book a flight from Hong Kong to Sydney (average of £294). Flying from Hong Kong to Sydney in January is currently the most expensive (average of £559). 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

Travelling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Hong Kong to Sydney

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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest£430Average£559FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Cathay PacificCheapest£454Average£562FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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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