$477 Find Cheap Flights from Hong Kong to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 28/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$785
Typical prices: $918-$1,259
Scoot
Thu 26/2Wed 11/3
HKG - SYD • 1 stop
Cheapest direct flights
$787
Typical prices: $902-$1,256
Qantas Airways
Thu 26/2Wed 11/3
HKG - SYD • Direct
Top airlines
Cathay Pacific
Most flights • 28 per week
Cathay Pacific
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 19% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hong Kong to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Hong Kong to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Hong Kong to Sydney

Thu, 26 Feb - Wed, 11 Mar
Scoot Logo
16:25 - 18:50
HKG
-
SYD
23h 25m
1 stop
Scoot Logo
13:35 - 15:25
SYD
-
HKG
28h 50m
1 stop
$785Scoot
Fri, 3 Jul - Wed, 29 Jul
Multiple Airlines Logo
11:55 - 08:20
HKG
-
SYD
18h 25m
1 stop
Multiple Airlines Logo
11:30 - 19:10
SYD
-
HKG
9h 40mdirect
$786Multiple Airlines
Thu, 26 Feb - Wed, 11 Mar
Qantas Airways Logo
19:25 - 07:55
HKG
-
SYD
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50
SYD
-
HKG
9h 35mdirect
$787Qantas Airways
Tue, 3 Mar - Wed, 25 Mar
Qantas Airways Logo
19:25 - 07:55
HKG
-
SYD
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50
SYD
-
HKG
9h 35mdirect
$789Qantas Airways
Thu, 21 May - Tue, 26 May
Qantas Airways Logo
19:30 - 06:45
HKG
-
SYD
9h 15mdirect
Qantas Airways Logo
10:10 - 17:55
SYD
-
HKG
9h 45mdirect
$790Qantas Airways
Sat, 7 Mar - Sat, 14 Mar
China Eastern Logo
21:15 - 13:35
HKG
-
SYD
37h 20m
3 stops
China Eastern Logo
12:00 - 20:15
SYD
-
HKG
35h 15m
3 stops
$792China Eastern
Thu, 26 Feb - Thu, 5 Mar
Multiple Airlines Logo
23:05 - 09:15
HKG
-
SYD
31h 10m
2 stops
Multiple Airlines Logo
12:30 - 19:40
SYD
-
HKG
34h 10m
2 stops
$793Multiple Airlines
Fri, 3 Jul - Fri, 31 Jul
Multiple Airlines Logo
18:30 - 19:35
HKG
-
SYD
23h 05m
1 stop
Multiple Airlines Logo
11:30 - 19:10
SYD
-
HKG
9h 40mdirect
$794Multiple Airlines
Thu, 23 Apr - Wed, 6 May
Hong Kong Airlines Logo
22:30 - 10:00
HKG
-
SYD
9h 30mdirect
Hong Kong Airlines Logo
11:30 - 19:10
SYD
-
HKG
9h 40mdirect
$796Hong Kong Airlines
Mon, 2 Mar - Wed, 1 Apr
China Eastern Logo
14:45 - 07:20
HKG
-
SYD
37h 35m
2 stops
China Eastern Logo
15:10 - 16:05
SYD
-
HKG
27h 55m
2 stops
$797China Eastern
Booking Insights

KAYAK's insights & trends for flights to Sydney

Get data-powered insights and trends into flights to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Sydney is August, where tickets cost $881 on average for one-way flights. On the other hand, the most expensive months are January and April, where the average cost of tickets from Hong Kong is $1,660 and $1,257 respectively. For return trips, the best month to travel is August with an average price of $881.

What is a good deal for flights to Sydney?

If you’re looking for cheap airfare to Sydney, 25% of our users found tickets to Sydney for the following prices or less: From Hong Kong $781 one-way - $906 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 38 days before departure.

Good to know

Low seasonJanuary
Cheapest flight$477
Best time to beat the crowds but there is an average 51% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Hong Kong to Sydney

FAQs - booking Sydney flights

  • How far is Sydney Kingsford Smith Airport from central Sydney?

    Central Sydney is 7 km away from Sydney Kingsford Smith Airport.

  • What is the name of Sydney’s airport?

    Sydney is served by Sydney Kingsford Smith Airport, also commonly referred to as Kingsford Smith or Sydney. The airport code is SYD.

  • How much is a flight to Sydney?

    On average, a flight to Sydney costs $901. The cheapest price found on KAYAK in the last 2 weeks cost $324 and departed from Hong Kong Intl Airport.

  • What is the cheapest day to fly to Sydney?

    Based on KAYAK data, the cheapest day to fly to Sydney is Sunday where tickets can be as cheap as $1,008. On the other hand, the most expensive day to fly is Tuesday, where prices are $1,124 on average.

  • How does KAYAK find such low prices on flights to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Sydney?

    The cheapest time of day to fly to Sydney is generally at night, when flights cost $1,046 on average. The most expensive time of day to fly to Sydney is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,339.

Top tips for finding cheap flights to Sydney

  • Looking for cheap airfare to Sydney? 25% of our users found return tickets to Sydney for the following prices or less: From Hong Kong $844
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sydney flight deals.

Reviews of the top 3 airlines flying from Hong Kong to Sydney

 
See real verified KAYAK customer reviews for airlines flying to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Hong Kong to Sydney. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1148 reviews
7.3Food
8.1Crew
7.9Boarding
7.6Comfort
7.7Entertainment
Airline reviews

Vegetarian options should be included with every meal. Even just simple steamed vegetables and whole grains would capture a wide audience.

6.0 GoodAnonymous, Jan 2026
HKG - JFK
Read more Cathay Pacific reviews

Vegetarian options should be included with every meal. Even just simple steamed vegetables and whole grains would capture a wide audience.

Cramped, hot and the plane was grubby. Also the plane was an hour late and it took an hour to get my luggage once I got to LAX.

Extensive delays, poor organization to board people, as it felt like chaos to get inside of the plane. No lines, everyone gathering together like a mayhem, very confusing. Passengers out of hand and rude, which is not the airlines fault. However, there should be rules, e.g., not letting one passenger take 2+ spots in the overhead bin.

The bed was alright in business class. Food variety and quality were not up to the mark compared to the business class airfare.

Food , drink experience were great with Cathay. Crew service was excellent. Clean toilet and full snack bars always, pilot took of 26minutes later when boarding at Hong Kong with extra US customs check at gate 9 for US flight, but he managed to arrive only 2 minutes later from flight tracker. Smooth flight .

I wish there were more bathrooms available on these larger carriers.

Overall, not good. Super late boarding in Hong Kong because some last minute issue with a plane. The boarding process is chaotic. Kathy Pacific should seek to do better with punctual departure time. Caused a lot of trouble with missed connecting flight.

Not much of anything could have been done better unless I had a first class ticket. I was literally 15 hours with an airline in the economy class. Very professional friendly and attentive crew. Good airline food, clean cabin, seating area and bathrooms. I've been 4 times back-and-forth with Cathay Pacific, and I would not choose another airline for this trip. Five out of five stars.

Crew on this flight dedicate their business class service to their high priority members. They would get priority service even the seats are behind me, and meals priority service and orders. I get the left over choices. I refused to eat because I felt discriminated, never booking this airline.

Issues: 1) the charging issue as described in my previous survey 2) when I requested diet coke during the breakfast time, it is not available. Why? I can't drink diet coke in the morning? 3) when I tried to transfer to this flight, its gate information was not available to me?

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

Departure date of the ticket was ONE WEEK LATER than I purchased it for. Total failure on trying to get it reissued for the date I was to fly on. Will NOT use Kayak next time due to this screw up on Kayak's part..

On-time takeoff and arrival Cabin crew very helpful, especially the crew manager (I think) (young gentleman with glass)

I cannot check in online , and not able to select my seat

Watch for "bait and switch" - cheap prices, but not obvious at all at point of purchase that there will be an undisclosed charge for baggage - and less obvious that you will have to purchase baggage at an eye-watering level. Better still, if you go this airline, leave your gear behind and buy a complete wardrobe when you arrive in country and still be ahead. The staff were very pleasant, both at counter staff level - they were clearly unnerved by having to charge - and on board.

No entertainment service which equates them with budget airlines. But their fare are regular airline fares. Aircraft are old and seats are worn.

The crews at check in counter are not professional, they are talking and playing around. Also no entertainment on the plane

2 failed landing attemps before going to Nagoya airport for refueling. After 3 hours of taxiing, we still needed 3 attemps before a succeeded landing (after the 5th attempt finally!). In total, 11 hours inside the plane instead of 4h30, and with only a crappy piece of bread to feed us. A shame.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Katoomba
Leura
Penrith
Terrigal
Manly
Cronulla
Coogee
Randwick
Bondi Beach
Lithgow
Charlestown
Newport
Swansea
Brooklyn

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney