HKG - SYD

Find cheap flights from Hong Kong to Sydney

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

Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
For a smooth departure, use the Airport Express train.
Use the Airport Link train for quick access to Sydney.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
Every day
You can fly direct with Cathay Pacific, Qantas Airways, and Hong Kong Airlines. Average duration is 9h 13m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 80% on-time
Best time • Fewest delays
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg C$ 675 (round-trip)
Shortest trip • 12h 45m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
Good to know
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
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Flight Deals

Cheap Flights from Hong Kong to Sydney (HKG-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Hong Kong to Sydney

Multiple Airlines Logo
HKG
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SYD
11889 kmmulti-stop
Multiple Airlines Logo
SYD
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HKG
11889 kmmulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Hong Kong to Sydney flights

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

What’s the cheapest day of the week to fly from Hong Kong to Sydney?

The average price of all round-trip flights from Hong Kong to Sydney clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sydney on a Friday and more expensive on a Monday. On your return trip to Hong Kong, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from Hong Kong to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hong Kong 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 from Hong Kong to Sydney is August, where tickets cost C$ 842 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is C$ 1,282 and C$ 1,193 respectively.

Can I save money by flying with a layover from Hong Kong to Sydney?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 773 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Hong Kong 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 on the flight from Hong Kong to Sydney, you should book around 6 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Hong Kong to Sydney

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on HKG and SYD

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Good to know

Low seasonJanuary
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 1% lower on average.

When to book flights from Hong Kong to Sydney

Are your dates flexible? Find out the best times to travel from Hong Kong to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Hong Kong to Sydney

  • Are there direct flights between Hong Kong and Sydney Airports?

    Yes, Cathay Pacific operates frequent direct flights between Hong Kong and Sydney. China Airlines and Philippines Airlines both offer indirect routes transiting between locations such as Manila Ninoy Aquino International Airport (MNL) and Taipei International Airport (TPE). Singapore Airlines also offers an indirect route through Singapore Changi Airport (SIN). Transfer times can vary.

  • Is it easy to connect with central Sydney from the airport by public transport?

    Yes, Sydney is the busiest airport in Australia and consequently there are a range of public transport options between it and the city. The Airport Link train runs every 10min and the journey to Sydney usually takes 13min. A one-way fare is around A$ 15 but you will also have to pay an airport access fee of around A$ 9 on top of the train fare. Sydney Buses operate a regular service on Route 400 and 420; a single fare is also around A$ 15. Travelling by bus, you don’t have to pay the airport access fee. The trip by taxi will cost around A$ 55 and take roughly 20min.

  • Are there hotels at Sydney Airport?

    Yes, there are a number of hotels on the Sydney Airport campus, including ibis budget Sydney Airport, Mantra Sydney and Rydges Hotel. They are each within walking distance of the arrivals area.

  • Which aircraft models fly most regularly from Hong Kong to Sydney?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Hong Kong to Sydney flight route.

  • Which airline alliances offer flights from Hong Kong to Sydney?

    oneworld is the only airline alliance operating flights between Hong Kong and Sydney.

  • On which days can I fly direct from Hong Kong to Sydney?

    There are direct flights from Hong Kong to Sydney on a daily basis.

  • Which is the best airline for flights from Hong Kong to Sydney, Cathay Pacific or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Hong Kong to Sydney are Cathay Pacific and Qantas Airways. With an average price for the route of C$ 808 and an overall rating of 7.6, Cathay Pacific is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of C$ 806 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Hong Kong 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 from Hong Kong to Sydney.

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

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

  • What is the Hacker Fare option on flights from Hong Kong 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 to Hong Kong with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hong Kong 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 from Hong Kong up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Hong Kong to Sydney

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 774 or less one-way and C$ 782 or less round-trip.
  • Families with young children, people with additional needs, pregnant women and older people departing for Sydney can make use of the Caring Corner at Hong Kong Airport (HKG). This is a specially designated quiet area with televisions, seating and airport telephone helplines.
  • There are currency exchange desks and a range of international ATMs at the arrivals hall in Sydney Kingsford Smith Airport (SYD).
  • There are a number of lounges at Hong Kong Airport available to departing passengers, including Cathay Pacific Lounge, the Emirates Lounge and the United Club.

Prefer to fly direct from Hong Kong to Sydney?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Hong Kong Intl to Sydney Kingsford Smith.
Find which airlines fly direct from Hong Kong Intl Airport to Sydney Kingsford Smith Airport, which days they fly and book direct flights.

Direct departures

Hong Kong Intl to Sydney Kingsford Smith

Monday

Cathay Pacific,Qantas Airways

Cathay Pacific,Qantas Airways

Tuesday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Wednesday

Cathay Pacific,Qantas Airways

Cathay Pacific,Qantas Airways

Thursday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Friday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Saturday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Sunday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

See more nonstop flights

Direct returns

Sydney Kingsford Smith to Hong Kong Intl

Monday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Tuesday

Cathay Pacific,Qantas Airways

Cathay Pacific,Qantas Airways

Wednesday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Thursday

Cathay Pacific,Qantas Airways

Cathay Pacific,Qantas Airways

Friday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Saturday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

Sunday

Cathay Pacific,Hong Kong Airlines,Qantas Airways

Cathay Pacific,Hong Kong Airlines, +1 more

See more nonstop flights

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

 
See real verified KAYAK customer reviews for airlines flying from Hong Kong to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hong Kong 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 1214 reviews
7.9Boarding
7.8Entertainment
7.3Food
7.6Comfort
8.1Crew
Airline reviews

the crew was rude - there were no smiles when serving. they always had the look of why did you call me?

4.0 Okaycogitate, Mar 2026
HKG - HYD
Read more Cathay Pacific reviews

the crew was rude - there were no smiles when serving. they always had the look of why did you call me?

After each meal was served I didn't see any flight attendant offer coffee or tea to the passengers after the initial drinks were offered. Other flights I had been one it was standard procedure to offer hot drinks after the meal service.

It was great. It was my first time with Cathay Pacific and I really recommend.

Selected ovo lacto meal because I’m ok with milk products but not any meat. It was terrible. We had the same selection back in October when we had traveled and it was pretty good at that time. It was gross this time.

See previous answers. Also food options limited, entertainment difficult to use and did not work properly, lay flat bed is quite big but very hard and uncomfortable

I wear hearing aids in both ears the infotainment system is hard to hear.

I was mid plane and they were already out of the main beef entree....ugh!

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.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

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.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

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+.

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.

Everything you need to know for your flight from Hong Kong to Sydney

Information on your arrival and departure airports