Cheap flights from Hong Kong to Sydney from £245

In general, March is the cheapest month to fly from Hong Kong to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £455. If you don’t want to visit Sydney in March, then you should wait until October to fly from Hong Kong, when ticket prices are also cheap, with an average price of £474.

The cheapest day to depart on your flight to Sydney is on a Thursday when prices can be found for as low as £445. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Hong Kong because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £738.

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Hong Kong to Sydney in the evening for as low as £560. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Sydney, so prices are often more expensive at around £685 per ticket.

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You are more likely to see cheaper flights to Sydney from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £547 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Hong Kong for as low as £473 on momondo.

You could potentially save up to 48% on your flight if you consider stops on a Hong Kong to Sydney flight.

As of May 2026, prices for Hong Kong to Sydney flights are approximately 27% more expensive when compared to flights at the same time last year.

Historically, on average around 32% of flights between Hong Kong and Sydney have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Cathay Pacific have had the fewest delays on this route over the last 12 months, with about 20% of their flights experiencing any sort of delay.

The number of flights available between Hong Kong and Sydney is 23 per day as of May 2026. The most frequent departure time is 19:00, with 65% of daily flights leaving in the evening.

163 flights are operational weekly from Hong Kong to Sydney as of May 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.