HK$1,790+ Cheap flights to Sydney

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 2-12. Fares are subject to change and may not be available on all flights or dates of travel.
— SYD
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Sydney

Enter your travel dates to find the best prices.

Cheapest flights to Sydney
Explore the most affordable flight options available to Sydney. Find the lowest fares based on data from user searches, with prices last updated on 21 November 2025.

Sat 6-1218:20HKG - SYD
1 stop17h 20mSichuan Airlines
Thu 8-121:25SYD - HKG
1 stop22h 55mSichuan Airlines
Deal found 20-11HK$3,581
Sun 28-1210:15HKG - SYD
1 stop26h 05mHainan Airlines
Tue 13-121:00SYD - HKG
1 stop25h 50mHainan Airlines
Deal found 17-11HK$3,589
Mon 8-1207:55HKG - SYD
2 stops21h 10mMultiple Airlines
Wed 21-113:35SYD - HKG
1 stop28h 50mMultiple Airlines
Deal found 18-11HK$3,682
Tue 2-1222:25HKG - SYD
Nonstop9h 30mHong Kong Airlines
Sun 1-212:35SYD - HKG
Nonstop9h 50mHong Kong Airlines
Deal found 20-11HK$3,705
Fri 21-1118:20HKG - SYD
1 stop17h 20mMultiple Airlines
Tue 25-1121:50SYD - HKG
2 stops25h 25mMultiple Airlines
Deal found 20-11HK$3,775

Flights to Sydney in 2025

Find the latest flights to Sydney in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 21 November 2025.

Return from

HK$3,581

One-way from

HK$1,790

Popular in

January

Cheapest in

August

Average price

HK$5,278

Good round-trip deal

HK$4,608 or less

Good one-way deal

HK$3,797 or less
Sichuan Airlines
  • Sichuan Airlines
  • 6-12-8-1
  • 2 total stops
  • 40h 15m total
  • Hong Kong to Sydney
VietJet Air
  • VietJet Air
  • 2-12
  • 2 total stops
  • 36h 25m total
  • Hong Kong to Sydney
Highest demand for flights based on searches. 22% potential increase in price (HK$1,765 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (HK$318 potential savings vs. average return price).
Average for return flights in November 2025
Price to beat on a round-trip flight from Hong Kong Intl to Sydney Kingsford Smith.
Price to beat on a one-way flight from Hong Kong Intl to Sydney Kingsford Smith.

Cheapflights Fare Finder

 
Locate flights to Sydney that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 21 November 2025.
Use the filters below to find and compare flights to Sydney that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 2-12

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Thu 5-2

11:15-17:50

Nonstop9h 35m

HK$4,383

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sat 16-5

19:30-06:45

Nonstop9h 15m

Sydney Kingsford Smith

Thu 21-5

10:10-17:55

Nonstop9h 45m

HK$4,383

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 5-5

19:30-06:45

Nonstop9h 15m

Sydney Kingsford Smith

Mon 18-5

10:10-17:55

Nonstop9h 45m

HK$4,383

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Sun 28-12

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Tue 13-1

11:15-17:50

Nonstop9h 35m

HK$4,383

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 4-5

19:30-06:45

Nonstop9h 15m

Sydney Kingsford Smith

Mon 18-5

10:10-17:55

Nonstop9h 45m

HK$4,383

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Mon 16-3

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Mon 20-4

10:10-17:55

Nonstop9h 45m

HK$4,398

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Wed 24-12

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Sun 11-1

11:15-17:50

Nonstop9h 35m

HK$4,632

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Thu 12-3

19:30-08:05

1 stop33h 35m

Sydney Kingsford Smith

Mon 16-3

11:15-18:30

1 stop34h 15m

HK$5,083

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 10-3

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Mon 23-3

07:45-17:35

1 stop12h 50m

HK$5,317

Hong KongSydney

HKG - SYD

HKGSYD

Hong Kong Intl

Tue 10-3

19:25-07:55

Nonstop9h 30m

Sydney Kingsford Smith

Sun 22-3

07:25-17:35

1 stop13h 10m

HK$5,324

Flights are sorted by cheapest return flights first.

Deals found on 20-11

Showing 1-10 of 21 results
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Best time to book a flight to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 to Sydney

When is the best time to book a flight 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 14 November 2025.

To ensure you get the cheapest price possible for a flight 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.

When is the cheapest time to fly to Sydney?

Use this chart to determine the cheapest time to fly return from Hong Kong to Sydney. Price data was last updated on 2 November 2025.

Users looking for the lowest fares to Sydney should consider flying on Saturday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday mornings, when prices are usually at their highest.

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 21 November 2025.
See what other customers who have flown with Singapore Airlines, Cathay Pacific, andQantas Airways to Australia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Entertainment

8.0

Comfort

8.0

Food

7.7

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

FAQs about flying to Sydney

Sydney climate

Sydney has a temperate climate with more than 300 sunny days a year. Winters are more cool than cold. June to August are the coolest, and the daytime temperature can drop to 7 degrees (Celsius). Summers are humid with occasional downpours. Temperatures are usually in the upper 20s but can go over 37. Sea breezes cool the hot days, and evenings are balmy.Autumn and spring are delightful with clear, warm days and mild nights.

Getting around Sydney

Sydney is a city built around its harbour, and that’s where you will find some of the best sightseeing. The public passenger ferries are run by Sydney Ferries and you can board a monorail down to Darling Harbour. There are plenty of ways to get around the city. The By Sydney Explorer and By Bondi Explorer buses stop almost anywhere you’d want to go in the city and around the harbor and beaches. Take the light-rail tram line to Chinatown, Paddy’s Markets or Darling Harbour. You don’t need to drive, and the one-way streets and lack of parking will eat up your time. Taxis are all over and easy to hail on the street. Adventurous travellers who don’t fear heights can join the Sydney Harbor Bridge climb, which walks across catwalks and ladders across the arch of the iconic Sydney Harbor Bridge. 

What is good to know if travelling to Sydney?

  • Lots of tourist activities in Sydney are all about the views such as climbing the Sydney Harbour Bridge. There are panoramic views from Mrs Maquarie’s (wife of Governor Macquarie) Chair, in the Royal Botanic Gardens (free to enter). The Open Air Cinema is close to the Chair. The big screen has the Sydney City Skyline, Sydney Opera House and Sydney Harbour Bridge as a backdrop.
  • Taronga Zoo was opened in 1916 and sits on high land along the waterfront overlooking the Sydney Harbour Bridge, the Cove and the Opera House. The zoo is just 12 minutes by ferry from the central business district. The Sky Safari cable car runs between the zoo wharf and the top of the zoo.
  • The Rocks is Sydney’s oldest preserved colonial area. It is where the first settlers from England landed in 1788. Today, having undergone a makeover, it is a thriving area of galleries, museums, restaurants, cafes and shops. Staying with settlements, Fort Denison was an unhappy place of punishment and confinement … for the convicts. It’s part of Sydney Harbour National Park and is open for guided tours.
  • Take the Manly Ferry. Hop on at Circular Quay and cruise the seven nautical miles (takes about 30 minutes each way) to Manly, the suburb by the sea. There’s a lot to do there apart from going to the beach: several heritage walks, galleries and museums, regular festivals and more than 80 restaurants. 
  • For a view of the city and beyond, visit The Sydney Tower, 250 metres (820 feet) above the streets. High-speed double-decker lifts rocket up to the observation desk in just 40 seconds.
  • And beaches. Don’t forget the beaches: Bondi, Manly, Coogee, Balmoral, Tamarama and Palm.
  • When is the best time to fly to Sydney?

    Peak season: The Sydney festival starts just after New Year’s and runs through January. The beaches are busy and plentiful — there are more than 20 beaches along the oceanfront and more around the harbour. The summer Surfing Carnivals bring crowds on Sydney flights to watch the surfing and other water-sport competitions. There is yacht racing on summer weekends, and the start of the Sydney to Hobart Yacht Race is on Boxing Day (26 December). Off Season: Comfortable to visit any time of year, Sydney is particularly enjoyable in autumn and spring. There is a greater chance of rain in spring, but it usually clears quickly.

  • What airport do you fly into for flights to Sydney?

    Booking a flight to Sydney Kingsford Smith (SYD) is your only option if you intend on flying to Sydney. It is only a 7.5 km journey from Kingsford Smith to Sydney’s city centre. On average, Sydney Kingsford Smith has 27 flights from Hong Kong per day from 8 airlines.

  • Can I find cheaper flights to Sydney if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Sydney on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Sydney?

    Based on reviews from Cheapflights users, Scoot is rated the highest out of the airlines that fly to Sydney.

  • What is the cheapest airport to fly to in Sydney?

    Sydney Kingsford Smith is currently the cheapest airport to fly to in Sydney. One-way flights to Sydney Kingsford Smith typically cost HK$315, while return flights cost around HK$659.

  • How much is a return flight to Sydney?

    A return flight to Sydney will typically cost around HK$669, however they can be found for as little as HK$659.

  • Does Sydney Kingsford Smith have rental cars?

    Yes. Those touching down at Sydney Kingsford Smith can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Sydney Kingsford Smith?

    Yes. Sydney Kingsford Smith has hotels nearby for those requiring accommodations. Aerotel Sydney - Inside International Terminal Airport is the closest property to Sydney Kingsford Smith (0.0 km away from Sydney Kingsford Smith).

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Penrith

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