Cheap Flights from Belfast (BFS) to Sydney (SYD)

Popular airlines from Belfast International Airport (BFS) to Sydney Airport (SYD)

Frequently asked questions

How much does a flight from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD) cost?
Get a cheap one-way flight or cheap return flight from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD)?
The cheapest month to fly from BFS to SYD is , when demand is low. Off-peak months are often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD)?
To find the cheapest airline that'll fly you from BFS to SYD, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD)?
Direct flights from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BFS to SYD?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD)?
To avoid possible delays on the Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD) last-minute?
Last-minute fares from BFS to SYD are usually more expensive. To lock in the lowest prices, start looking for flights well in advance. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a BFS to SYD flight and hotel package?
Booking a BFS to SYD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Belfast Intl. Airport (BFS) to Kingsford Smith Intl. Airport (SYD)?
If you reserved your BFS to SYD flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Belfast Intl.
Destination airport
Kingsford Smith Intl.
Distance
10636 mi

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Belfast to Sydney Flights

The cheapest times to fly from Belfast to Sydney

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 Belfast to Sydney are during the month of . You can find some of the cheapest flights from Belfast to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Belfast to Sydney

Sunday is one of the best days to book for cheap flights from Belfast to Sydney: 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 Belfast to Sydney

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 Belfast to Sydney 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 Belfast to Sydney 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 Belfast to Sydney 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.

 

Belfast to Sydney Flights

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*Available to One Key members.