$456 Find Cheap Flights from Hong Kong to Sydney – Compare and Save

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Cheap Flights from Hong Kong to Sydney

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Hong Kong to Sydney

Mon, 22 Mar - Wed, 31 Mar
Multiple Airlines Logo
16:10 - 15:30Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
20h 20m1 stop Haikou Meilan Intl
Multiple Airlines Logo
21:35 - 19:45Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
25h 10m1 stop Singapore Changi
$953Multiple Airlines
3+ days ago
Thu, 25 Mar - Sun, 4 Apr
Multiple Airlines Logo
09:25 - 10:45Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
22h 20m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
10:15 - 18:50Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
34h 35m1 stop Ho Chi Minh City
$955Multiple Airlines
7 hours ago
Thu, 5 Nov - Sat, 14 Nov
Multiple Airlines Logo
14:00 - 10:45Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
17h 45m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
20:05 - 20:35Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
27h 30m1 stop Singapore Changi
$955Multiple Airlines
3+ days ago
Sat, 13 Feb - Sun, 28 Feb
Cathay Pacific Logo
19:00 - 07:15Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 15mdirect
Cathay Pacific Logo
08:45 - 15:00Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
9h 15mdirect
$956Cathay Pacific
3+ days ago
Sat, 3 Apr - Sun, 18 Apr
Cathay Pacific Logo
19:05 - 07:10Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 05mdirect
Cathay Pacific Logo
07:40 - 15:10Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
9h 30mdirect
$956Cathay Pacific
3+ days ago
Thu, 5 Nov - Mon, 9 Nov
Qantas Airways Logo
19:25 - 07:55Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
9h 35mdirect
$957Qantas Airways
3+ days ago
Wed, 4 Nov - Sun, 8 Nov
Qantas Airways Logo
19:25 - 07:55Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
9h 35mdirect
$957Qantas Airways
3+ days ago
Tue, 23 Mar - Fri, 2 Apr
Cathay Pacific Logo
19:00 - 07:15Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 15mdirect
Cathay Pacific Logo
08:40 - 15:10Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
9h 30mdirect
$960Cathay Pacific
3+ days ago
Fri, 20 Nov - Tue, 24 Nov
Hong Kong Airlines Logo
22:25 - 11:05Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 40mdirect
Hong Kong Airlines Logo
12:35 - 19:35Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
10h 00mdirect
$964Hong Kong Airlines
3+ days ago
Sun, 22 Nov - Thu, 26 Nov
Hong Kong Airlines Logo
22:25 - 11:05Hong Kong  Hong Kong Intl-Sydney Sydney Kingsford Smith
9h 40mdirect
Hong Kong Airlines Logo
12:35 - 19:35Sydney  Sydney Kingsford Smith-Hong Kong Hong Kong Intl
10h 00mdirect
$966Hong Kong Airlines
2 days ago
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 day to fly to Sydney?

Based on KAYAK data, the cheapest day to fly to Sydney is Thursday where round-trip tickets can be as cheap as $948. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,263 on average.

What is the cheapest month to fly to Sydney?

The cheapest month for flights to Sydney is March, where tickets cost $882 on average for return flights. On the other hand, the most expensive months are January and July, where the average cost of tickets from Hong Kong is $1,445 and $1,348 respectively. For one-way flights, the best month to travel is December with an average price of $551.

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 round-trip flights cost $1,085 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 $1,498.

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 $1,184 return.

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

To get a below average price, you should book around 6 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

January

Cheapest flight

$456
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly (13% more expensive 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 $1,162. The cheapest price found on KAYAK in the last 2 weeks cost $574 and departed from Hong Kong Intl Airport.

  • 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.

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 $819

  • 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

 
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 1525 reviews
7.3Food
7.9Boarding
8.1Crew
7.6Comfort
7.8Entertainment
Airline reviews

They need to take training from emirates or Singapore airlines, it’s premium in pricing but poor in standards

6.0 GoodManoj, Oct 2026
Read more Cathay Pacific reviews

They need to take training from emirates or Singapore airlines, it’s premium in pricing but poor in standards

Boarding crew at the gate mostly were being difficult. But one on board much better experience with crew and service!

Good. However the passenger in the search next to mine kept coughing. When we landed in Dallas we had to pick up.bags instead of going strait to the destination (which passengers do in Atlanta)

Although I am a lifetime Gold Premier member on another airline association, I was placed in a inside passenger seat on both legs of my journey from SFO to HKG and onward to NRT. However, i was lucky enough to have befriended two other passengers (who were related) in my row (row 62) and therefore was kept entertained with conversation for a large portion of the overnight flight from SFO to HKG. Normally, on a Star Alliance carrier, I typically can have the seat of my choice (aisle seat) and also a Premier seat (wider and longer legroom). I was a bit disappointed that no recognition of my Gold Premier status was acknowledged by Cathay Pacific on either of my flights on Sept 26-27. The food was actually very tasty unlike the typical economy class menu. Also I appreciated that the dinner drinks were served first (prior) to the main meal on the HKG to NRT portion of my flights but drinks were served AFTER the meal had been distributed (less appealing for thirsty passengers). I was happily that there appeared to have ample cabin space for most everyone's bags ---although I did have to pay more than $400 in extra baggage fees as I had brought 4 bags with me Overall, I was impressed by the diligence and professionalism of the flight crew.

In between two meals period they're not providing something like banana / cup noodles or bugger. It's really fell sad that I was asking have to wait for 3 hours for second meal. (breakfast)

The crew are timely, friendly and professional. I was very impressed.

They overbooked the flight and reassigned my seat. To add insult they lied that my assigned seat was broken and promptly gave it to someone else

Jain veg meal I opted was super in taste but there was no sweet/desserts with it. I was a big missing in the meal...Please add some sweets to end the meal with 😊

There is very little in the title" Premium" in the Economy experience with Cathay, Melbourne to Hong Kong. The seats are uncomfortable and the cabin with outdated 1990's decor and trim. The food service was sloppy and the leg room providing little to no advantage over regular economy seating. Infact, the Sunday flight was not fill occupancy and I would have done better saving the significant additional costs for the PREMIUM ticket and taken advantage of the seating. If you are a regular premium economy traveler of EMIRATES expecting the same experience on CATHAY, you will be disappointed. Emirates far superior.

The aircraft was slightly newer but the food was very bad. Bland and uninteresting. Nothing special at all.

Poor. Flight was delayed by 50 mins. Poor quality aircraft. Aged, few parts broken. Bad plane.

Despite having numerous passengers held up by American Airlines delays. Qantas (an AA partner) closed boarding with 0 flexibility

Boarding , crew and meals were all amazing. Couldn't wish for a better LOOONG flight from Dallas to Sydney .

From start to finish, every part of the experience was outstanding. The care and kindness shown to my 95-year-old mother was exceptional—truly 10 out of 10. From the assistance she received at Sydney Airport while boarding the plane to the help she was given when arriving at Wagga Wagga Airport, every staff member was friendly, professional, and genuinely caring. They made her feel comfortable, safe, and well looked after throughout her journey. A heartfelt thank you to everyone who helped make my mother's trip such a wonderful experience. Your compassion and dedication are greatly appreciated.

I think it is much better than the flight I flew from Sydney to Tokyo.

I missed my flight due to unforeseen circumstances It was, however , an excellent price !

We had a medical emergency, needing to get to an emergency room upon landing at LAX. I let the back flight attendants know the situation. One, David, contacted the pilot, who made arrangements for EMT's to be there when we got off the plane. They went above and beyond for us. We didn't have to go through customs, as a customs person came to us and checked us right at the exit of the jet way. Another wonderful woman, a United employee at LAX, perhaps a customer service liaison, took care of our luggage situation, as we weren't going to make our connection to Bozeman. When we came back to LAX to see when we could get a flight to Bozeman, the personnel are very accommodating and booked us on the next flight out, and assigned good seats. It was a horrible flight, physically, from Sydney to LAX, , but the professionalism of all involved was excellent! We are very grateful fir the way they all stepped in and helped during a very unpleasant medical situation. Thank you!!

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

I couldn't hear all of the announcements. It was nice when they put them on the screen.

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Our luggage broke and what we get back was only 26$ plus the transit in hongkong was terrible and the airline itself the screen wasn’t working but there was a proper seat space and the crew was nice and professional

speedy loading helpful staff. and clean. food is not that great

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?

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