Cheap Flights from Hong Kong (HKG) to Sidney (SDY)

Popular airlines from Hong Kong International Airport (HKG) to Sidney, MT (SDY-Sidney-Richland Municipal)

Frequently asked questions

How much does a flight from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY) cost?
Secure a cheap one-way flight or cheap return flight from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY)?
The cheapest month to fly from HKG to SDY is , when demand is low. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY)?
To find the cheapest airline flying from HKG to SDY, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY)?
You'll need to take a flight with a layover if you're traveling from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from HKG to SDY?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY)?
To avoid potential delays on the Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY) last-minute?
Last-minute bookings from HKG to SDY are typically more expensive. To lock in the lowest prices, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a HKG to SDY flight and hotel package?
Compared with arranging hotels and flights separately, booking a HKG to SDY flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of travel planning. Simply pick your flights and select from our wide range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Hong Kong Intl. Airport (HKG) to Sidney-Richland Municipal Airport (SDY)?
If you reserved your HKG to SDY flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Hong Kong Intl.
Destination airport
Sidney-Richland Municipal
Distance
7050 mi

Book with confidence

Book with confidence

Hong Kong to Sidney Flights

The cheapest times to fly from Hong Kong to Sidney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hong Kong to Sidney are during the month of . You can find some of the cheapest flights from Hong Kong to Sidney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hong Kong to Sidney

Sunday is one of the best days to book for cheap flights from Hong Kong to Sidney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hong Kong to Sidney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hong Kong to Sidney in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hong Kong to Sidney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hong Kong to Sidney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Hong Kong to Sidney Flights

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Explore a world of travel with Expedia

*Available to One Key members.