$485 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 22/12. 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
$852
Typical prices: $1,029-$1,184
Qantas Airways
Mon 4/5Mon 18/5
HKG - SYD • Direct
Cheapest one-way flight
$485
Typical prices: $368-$811
Multiple Airlines
Mon 22/12
HKG - SYD • 3 stops
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 • 20% 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

Mon, 4 May - Mon, 18 May
Qantas Airways Logo
19:30 - 06:45
HKG
-
SYD
9h 15mdirect
Qantas Airways Logo
10:10 - 17:55
SYD
-
HKG
9h 45mdirect
$852Qantas Airways
Sun, 28 Dec - Sat, 17 Jan
Multiple Airlines Logo
10:10 - 08:05
HKG
-
SYD
18h 55m2 stops
Multiple Airlines Logo
21:50 - 11:15
SYD
-
HKG
16h 25m1 stop
$853Multiple Airlines
Thu, 25 Dec - Sat, 10 Jan
Qantas Airways Logo
19:25 - 07:55
HKG
-
SYD
9h 30mdirect
Qantas Airways Logo
11:15 - 17:50
SYD
-
HKG
9h 35mdirect
$855Qantas Airways
Mon, 29 Dec - Wed, 21 Jan
Multiple Airlines Logo
16:10 - 14:55
HKG
-
SYD
19h 45m1 stop
Multiple Airlines Logo
12:35 - 19:25
SYD
-
HKG
9h 50mdirect
$856Multiple Airlines
Thu, 25 Dec - Sat, 10 Jan
Multiple Airlines Logo
16:10 - 15:20
HKG
-
SYD
20h 10m1 stop
Multiple Airlines Logo
12:30 - 11:10
SYD
-
HKG
25h 40m2 stops
$858Multiple Airlines
Wed, 31 Dec - Tue, 20 Jan
Multiple Airlines Logo
16:10 - 14:55
HKG
-
SYD
19h 45m1 stop
Multiple Airlines Logo
12:35 - 19:25
SYD
-
HKG
9h 50mdirect
$859Multiple Airlines
Sat, 27 Dec - Tue, 20 Jan
Multiple Airlines Logo
21:35 - 15:20
HKG
-
SYD
14h 45m1 stop
Multiple Airlines Logo
12:35 - 19:25
SYD
-
HKG
9h 50mdirect
$861Multiple Airlines
Thu, 25 Dec - Sat, 10 Jan
Multiple Airlines Logo
20:55 - 15:20
HKG
-
SYD
15h 25m1 stop
Multiple Airlines Logo
12:30 - 11:10
SYD
-
HKG
25h 40m2 stops
$862Multiple Airlines
Fri, 6 Feb - Sat, 28 Feb
Multiple Airlines Logo
19:50 - 06:15
HKG
-
SYD
31h 25m2 stops
Multiple Airlines Logo
12:15 - 23:05
SYD
-
HKG
13h 50m1 stop
$864Multiple Airlines
Thu, 25 Dec - Sat, 10 Jan
Multiple Airlines Logo
20:55 - 15:20
HKG
-
SYD
15h 25m1 stop
Multiple Airlines Logo
12:30 - 11:10
SYD
-
HKG
25h 40m2 stops
$865Multiple Airlines
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 $940 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 $1,870 and $1,346 respectively. For return trips, the best month to travel is August with an average price of $940.

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 $628 one-way - $861 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 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 80 days before departure.

Good to know

Low seasonJanuary
Cheapest flight$485
Best time to beat the crowds but there is an average 59% increase in price.
Most popular time to fly and prices are also 6% 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 $858. The cheapest price found on KAYAK in the last 2 weeks cost $455 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 $1,122. On the other hand, the most expensive day to fly is Monday, where prices are $1,276 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 $1,148 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 $1,547.

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 $745
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sydney flight deals.

Reviews of the top 4 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 1093 reviews
7.3Food
7.9Boarding
7.6Comfort
7.8Entertainment
8.1Crew
Airline reviews

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

8.0 ExcellentDavid, Dec 2025
HKG - SFO
Read more Cathay Pacific reviews

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?

The lead business class attendant was excellent. Made a point of greeting you and knowing your name by the time you leave.

A lot of things Never flying with this airline again Had an emergency landing

Chicken pieces were too big with pasta. Need to be smaller.

My connecting flight was canceled or never existed. My stopover went from 1 hour and a half to 10 hours. It was a long day that I wasn't prepared for and it would have been nice to know that ahead of time. Cathay is great though. Great staff, entertainment and food.

Boarding at the airport was not well managed. Otherwise, had a good flight sitting in the first row (which I paid for). Crew was pretty friendly, and flight was smooth.

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 !

Uncoordinated boarding, seat comfort is terrible, even toilet is so small that overweight people wouldn't fit in. Baggage scam with additional fees. Stay away from this airline.

Forthright communication to the customers regarding services offered and any fees involved.

Scoot is a no frills budget airline. Do not expect a legacy airline experience.

I have taken more than 50 flights in the past year and this is the worst onboard experience that I've come across. There's always a risk with budget airlines and their creative views of customer service. Having bought a standard seat, we boarded at the assigned seat - we naturally couldn't choose ourselves as that would be extra cost. After take-off, the person in the row in front leans back their seat. As a frequent flyer, I believe this is their right, so I try to lean my seat back as well to have the same space available. However, my standard seat could not lean back, as the row behind was an exit row. As I had paid for a standard seat, not a less space than standard, I moved to the completely free row behind me. This was not allowed, as due to extra legroom, this would cost extra. Subsequently spent the next 30 mins discussing this scenario with the crew. I have no issues with budget airlines and additional charges, but if I pay for a standard seat, I want a standard seat, not one with less space. As you do not offer me a discount for the less space, do not try and charge me a premium, when I find a free seat with more space. It works both ways Scoot.

Finishes were quite worn, including our very scratched up seatback. No entertainment available, and the WiFi (even for “ScootHub”) was very slow. Crew were somewhat friendly.

Food & lower the prices. Look at Air Asia food look better & affordable

Not a frequent user of their website booking. Booked my check-in baggage and only realized that I did not book my check in baggage for return flight. The receipt was not clear in identifying that as well. Was charged exorbitantly at check in counter. Bad taste for sure when it is a business trip and not leisure trip. Baggage was delayed for more than an hour at belt back in SG.

Boarding took forever. It's also weird that we paid more (for preferred seats) to get on the plane last. Inflight WiFi never worked the entire trip. I want my money back.

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

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
Penrith
Leura
Terrigal
Manly
Coogee
Cronulla
Bondi Beach
Randwick
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