Cheap Flights from Belfast to Sydney

Compare Belfast to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

Book the best Sydney fare with no extra fees

Flight deals from Belfast to Sydney Airport

Looking for a cheap last-minute deal or the best return flight from Belfast to Sydney Airport? If you want to travel next month, return fares start from $2,952. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Sydney flights are currently cheapest in November.

Belfast to Sydney: Alternative routes

Compare routes from Belfast to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Belfast to Sydney: Flight information

The things to know before you go.
Cheapest flight found$1,956
Cheapest month to flyApril

Finding cheap flights from Belfast to Sydney: Frequently asked questions

The best price we found for a return flight from Belfast to Sydney is $1,956. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Belfast to Sydney. But we found flights with one stop from $1,956.
As of March 2026, there are no flights flying from Belfast to Sydney.
The cheapest month to fly from Belfast to Sydney is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Sydney Airport on Friday, 24 April 2026.
No airlines currently offer direct flights between Belfast and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Sydney is Ryanair .

Flying from Belfast to Sydney Kingsford Smith International Airport (SYD): What you need to know

  • Sydney is 11 hours ahead of Belfast. Sydney Kingsford Smith International Airport is located in Sydney, which operates on the UTC+11 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Show up at the airport on time to board your flight from Belfast to SYD.

  • Flying during a peak month such as June? Major public holidays and other popular periods can lead to longer queues and delays at security. Play it safe and get there up to four hours before international flights and two hours before a domestic departure.

Airports in Belfast

Belfast International Airport (BFS)

  • BFS is around 19 kilometres from central Belfast. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 45 minutes.

  • Searching for a comfortable hotel near Belfast International Airport? If you've booked an early flight from Belfast to Sydney Kingsford Smith International Airport, these accommodation options will have you sleeping moments from your check-in counter:

  • 68% of flights leaving from Belfast International Airport make it to their destination on time.

George Best Belfast City Airport (BHD)

  • BHD is around 5 kilometres from central Belfast. It'll take 15 minutes or so to get to the airport driving from the city centre. Public transport takes approximately 25 minutes.

  • Flying out early in the morning? You might like to check in to one of these accommodation options near George Best Belfast City Airport the day before your Belfast to SYD flight:

  • 69% of flights leaving George Best Belfast City Airport arrive within the expected time frame.

About Sydney Kingsford Smith International Airport (SYD)

Getting from Sydney Kingsford Smith International Airport (SYD) to central Sydney

  • The centre of Sydney is roughly 8 kilometres from Sydney Kingsford Smith International Airport. Journey times by taxi or car hire will vary based on traffic conditions, so do some research ahead of your trip.

  • It takes around 15 minutes to get there using public transport.

How to find the cheapest flights from Belfast to Sydney Kingsford Smith International Airport (SYD)

  • The lowest price we've found for a one-way ticket from Belfast to Sydney Kingsford Smith International Airport is $1,195. For a return flight on this route, the best price is $1,956. Depending on when you want to go and the availability, these fares may change.

  • Booking ahead of time is often the key to finding a cheap flight from Belfast to SYD. Fares tend to rise as demand increases, so the closer your departure date, the more you'll likely pay.

  • If you can be flexible with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price across every month when searching for your Belfast to Sydney Kingsford Smith International Airport ticket.

  • Finding a cheap plane ticket from Belfast to SYD is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when there's a better deal.

  • Save on your flight from Belfast to Sydney Kingsford Smith International Airport by using filters. Select your preferred departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Belfast to Sydney Kingsford Smith International Airport (SYD)

  • July is the busiest month for flights from Belfast to Sydney Kingsford Smith International Airport (SYD). Visit Sydney in September for a more low-key escape.

  • The warmest month in Sydney is January, with temperatures ranging between 17ºC and 32ºC. Book your Belfast to SYD plane ticket then if that's your definition of good weather.

  • July has temperatures of between 5ºC and 19ºC. Search for cheap tickets from Belfast to Sydney Kingsford Smith International Airport around that time if you'd rather travel in cooler conditions.

More about Sydney

  • Once you've booked your flight from Belfast to Sydney Kingsford Smith International Airport, find a hotel that keeps you close to what you want to see. Make one of these options your base for exploring Sydney:

  • Sydney Harbour and Sydney Harbour Bridge are a couple of major attractions to add to your Sydney must-do list. Keep the adventure rolling by checking out Sydney Harbour.

Explore more of Australia

  • You've visited Sydney, now it's time to explore other parts of Australia. Travel about 241 kilometres southwest to Canberra to tick off its top sights. From National Gallery of Australia to National Portrait Gallery and Museum of Australian Democracy, there's plenty to keep you on the go.

  • Newcastle is another essential stop in Australia and is around 129 kilometres northeast of Sydney. No trip is complete without visiting Bathers Way Coastal Walk, Merewether Beach and Nobbys Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.