Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Hong Kong to Sydney from £180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to Sydney departing on 19/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Hong Kong to Sydney

Cheap return flights

Logo
11:00 - 21:00HKG-SYD
31h 00m2 stops
Logo
12:15 - 23:35SYD-HKG
14h 20m1 stop
£352
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Logo
17:25 - 20:35HKG-SYD
24h 10m2 stops
Logo
20:05 - 15:30SYD-HKG
22h 25m1 stop
£354
Find Deal
Mon, 27 Oct - Thu, 30 Oct
Hainan Airlines Logo
16:55 - 14:55HKG-SYD
19h 00m1 stop
Hainan Airlines Logo
21:00 - 09:10SYD-HKG
15h 10m1 stop
£407Hainan Airlines
Find Deal
Mon, 29 Dec - Tue, 13 Jan
Qantas Airways Logo
19:25 - 07:55HKG-SYD
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50SYD-HKG
9h 35mdirect
£408Qantas Airways
Find Deal
Mon, 27 Oct - Thu, 30 Oct
Qantas Airways Logo
19:25 - 07:55HKG-SYD
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50SYD-HKG
9h 35mdirect
£409Qantas Airways
Find Deal
Fri, 14 Nov - Tue, 18 Nov
Cathay Pacific Logo
19:10 - 07:15HKG-SYD
9h 05mdirect
Cathay Pacific Logo
08:45 - 15:10SYD-HKG
9h 25mdirect
£423Cathay Pacific
Find Deal
Tue, 30 Dec - Wed, 14 Jan
Cathay Pacific Logo
19:10 - 07:15HKG-SYD
9h 05mdirect
Cathay Pacific Logo
11:05 - 17:30SYD-HKG
9h 25mdirect
£431Cathay Pacific
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Hainan Airlines Logo
20:55 - 14:55HKG-SYD
15h 00m1 stop
Hainan Airlines Logo
21:00 - 09:10SYD-HKG
15h 10m1 stop
£447Hainan Airlines
Find Deal
Wed, 31 Dec - Tue, 13 Jan
Philippine Airlines Logo
11:20 - 09:00HKG-SYD
18h 40m1 stop
Philippine Airlines Logo
11:10 - 10:10SYD-HKG
26h 00m1 stop
£469Philippine Airlines
Find Deal
Thu, 16 Oct - Fri, 17 Oct
Philippine Airlines Logo
13:40 - 09:50HKG-SYD
17h 10m1 stop
Philippine Airlines Logo
11:35 - 17:55SYD-HKG
33h 20m1 stop
£514Philippine Airlines
Find Deal
Sun, 26 Oct - Fri, 7 Nov

Hainan Airlines flights from Hong Kong to Sydney

Our best Hainan Airlines deals on Hong Kong to Sydney flight tickets
Hainan Airlines
29 Dec
HKG16:55Hong Kong Intl
19h 00m
1 stop
SYD14:55Sydney Kingsford Smith
13 Jan
SYD21:00Sydney Kingsford Smith
15h 10m
1 stop
HKG09:10Hong Kong Intl
£407
Find similar
Hainan Airlines
31 Dec
HKG20:55Hong Kong Intl
15h 00m
1 stop
SYD14:55Sydney Kingsford Smith
13 Jan
SYD21:00Sydney Kingsford Smith
15h 10m
1 stop
HKG09:10Hong Kong Intl
£447
Find similar

Cathay Pacific flights from Hong Kong to Sydney

Our best Cathay Pacific deals on Hong Kong to Sydney flight tickets
Cathay Pacific
30 Dec
HKG19:10Hong Kong Intl
9h 05m
SYD07:15Sydney Kingsford Smith
14 Jan
SYD08:45Sydney Kingsford Smith
9h 25m
HKG15:10Hong Kong Intl
£423
Find similar
Cathay Pacific
30 Oct
HKG19:10Hong Kong Intl
9h 05m
SYD07:15Sydney Kingsford Smith
6 Nov
SYD11:05Sydney Kingsford Smith
9h 25m
HKG17:30Hong Kong Intl
£431
Find similar
Cathay Pacific
23 Sept
HKG21:35Hong Kong Intl
9h 05m
SYD08:40Sydney Kingsford Smith
10 Nov
SYD11:05Sydney Kingsford Smith
9h 25m
HKG17:30Hong Kong Intl
£433
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 16 September 2025.
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

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 13/10

11:00-21:00

2 stops31h 00m

Sydney Kingsford Smith

Mon 20/10

12:15-23:35

1 stop14h 20m

£352

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 27/10

17:25-20:35

2 stops24h 10m

Sydney Kingsford Smith

Thu 30/10

20:05-15:30

1 stop22h 25m

£354

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 29/12

16:55-14:55

1 stop19h 00m

Sydney Kingsford Smith

Tue 13/1

21:00-09:10

1 stop15h 10m

£407

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 27/10

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Thu 30/10

11:15-17:50

Nonstop9h 35m

£408

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Fri 14/11

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Tue 18/11

11:15-17:50

Nonstop9h 35m

£409

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 30/12

19:10-07:15

Nonstop9h 05m

Sydney Kingsford Smith

Wed 14/1

08:45-15:10

Nonstop9h 25m

£423

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Thu 30/10

19:10-07:15

Nonstop9h 05m

Sydney Kingsford Smith

Thu 6/11

11:05-17:30

Nonstop9h 25m

£431

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Wed 31/12

20:55-14:55

1 stop15h 00m

Sydney Kingsford Smith

Tue 13/1

21:00-09:10

1 stop15h 10m

£447

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Thu 16/10

11:20-09:00

1 stop18h 40m

Sydney Kingsford Smith

Fri 17/10

11:10-10:10

1 stop26h 00m

£469

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 26/10

13:40-09:50

1 stop17h 10m

Sydney Kingsford Smith

Fri 7/11

11:35-17:55

1 stop33h 20m

£514

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

How to get the cheapest flight ticket from Hong Kong to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, August is the cheapest month to fly from Hong Kong to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £461. If you don’t want to visit Sydney in August, then you should wait until June to fly from Hong Kong, when ticket prices are also cheap, with an average price of £508.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart on your flight to Sydney is on a Thursday when prices can be found for as low as £456. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Hong Kong because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £682.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Hong Kong to Sydney in the evening for as low as £554. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Sydney, so prices are often more expensive at around £582 per ticket.

What is the cheapest Hong Kong Intl to Sydney Kingsford Smith flight route?

Fly from Hong Kong Intl to Sydney Kingsford Smith for the best Hong Kong Intl - Sydney Kingsford Smith flight prices

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £594 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Hong Kong for as low as £489 on momondo.

What cabin class options are available on Hong Kong Intl to Sydney Kingsford Smith flights?

There are 3 cabin classes available to choose from on Hong Kong Intl to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Hong Kong to Sydney flights?

No. A direct flight is the cheapest option for a flight between Hong Kong to Sydney.

How have Hong Kong to Sydney flight prices changed over time?

As of September 2025, prices for Hong Kong to Sydney flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Hong Kong to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Hong Kong to Sydney (HKG to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to Sydney

Best price found

£225

Fastest flight time

8h 55m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from Hong Kong in the past 72 hours is £225. The best return flight deal from Hong Kong to Sydney found on momondo in the last 72 hours is £429.
The fastest flight from Hong Kong to Sydney takes 8h 55m
Direct flights go from Hong Kong to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
Search flight deals

  • How far is Hong Kong Intl to Sydney Kingsford Smith by plane?

    Hong Kong Intl and Sydney Kingsford Smith are 4580.5 mi apart from one another. A reasonable flight in good conditions will take 9h 05m.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Hong Kong Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Hong Kong Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Hong Kong Intl Airport to Sydney Kingsford Smith Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hong Kong Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Hong Kong to Sydney?

  • What is the most popular airline from Hong Kong to Sydney?

Best airlines flying from Hong Kong to Sydney

Compare and see reviews for airlines that fly from Hong Kong to Sydney with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom £425Free CancellationRating
7.5
905 reviews
Search Qantas Airways flights
Cathay PacificPriceFrom £447Free CancellationRating
7.6
993 reviews
Search Cathay Pacific flights

  • Cathay Pacific Flights From Hong Kong to Sydney

    Cathay Pacific flight deals from Hong Kong to Sydney start from £608 round-trip. Over the 28 Cathay Pacific flights for this route in a normal week, average airfare is usually £757 round-trip - but some users have found much cheaper deals with momondo.

  • Qantas Airways Flights From Hong Kong to Sydney

    Another popular option for Hong Kong to Sydney flights is Qantas Airways (7.5/10, 905 ratings). Qantas Airways flies from Hong Kong to Sydney around 6 times per week, with deals starting from £578 round-trip and rising to an average price of around £754.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Wollongong
Coogee
Manly
Randwick
Penrith
Cronulla
Leura
Katoomba
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to Sydney?

It is quick and easy to find Hong Kong to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Hong Kong to Sydney with flexible booking policies on momondo?

All flight searches from Hong Kong to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Hong Kong to Sydney?

Once you have performed a search for Hong Kong to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Hong Kong to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Hong Kong to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 16/10
Thu 23/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia