Cheap flights from Belfast to Sydney
Cheap return flights from Belfast to Sydney
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Sydney flight facts
What you need to know
What are the cheapest airlines?
- Qantas
- British Airways
- Emirates
These airlines usually offer the cheapest flights from Belfast to Sydney.
What airlines fly indirectly?
- Singapore Airlines
- Etihad Airways
- Cathay Pacific
These airlines fly from Belfast to Sydney, but you’ll have at least one layover.
How long is the flight?
24 hours
This is the shortest flight time from Belfast to Sydney.
Alternative flights from the UK to Sydney
Check out prices for other routes
Alternative flights from Belfast
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Belfast/Sydney route. There are around 35 flights on any given week from the UK to Sydney and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Belfast to Sydney
Tips and advice from our flight experts
You've searched for flights from Belfast to Sydney. We've found 15 flights and compared them to give you the best offer. On average, Qantas is the cheapest airline for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route from Belfast to Sydney on 07/05/2026 at 22:45 for £31.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 17,000 km flight from Belfast to Sydney.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Flying during off-peak seasons can also help you save. Qantas is a popular and affordable choice for this route, with an average flight duration of 24 hours. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to book everything at once, saving you time and money.
Other popular destinations near Sydney
Where other people are flying to
