Cheap flights from Sydney to Belfast Intl Airport from £421
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Sydney to Belfast Intl
Cheapest flights from Sydney to Belfast IntlExplore the most affordable flight options available from Sydney to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.
Explore the most affordable flight options available from Sydney to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.
Best flights from Sydney to Belfast IntlDiscover carefully curated flight deals from Sydney to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.
Discover carefully curated flight deals from Sydney to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.
Last-minute flights from Sydney to Belfast IntlDiscover last-minute flight deals from Sydney to Belfast Intl. Data last updated 11 August 2026 and is based on user searches.
Discover last-minute flight deals from Sydney to Belfast Intl. Data last updated 11 August 2026 and is based on user searches.
One-way flights from Sydney to Belfast IntlSearch for one-way flight options from Sydney to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 11 August 2026.
Search for one-way flight options from Sydney to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 11 August 2026.
Find flight deals from Sydney to Belfast Intl
Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 August 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Sydney to Belfast Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Mon 21/9
11:00-20:25
2 stops42h 25m
Belfast Intl
Mon 28/9
06:10-09:00
2 stops41h 50m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Thu 10/9
11:00-20:35
2 stops42h 35m
Belfast Intl
Thu 17/9
06:10-09:00
2 stops41h 50m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Mon 7/9
10:05-09:55
2 stops32h 50m
Belfast Intl
Tue 29/9
16:00-09:00
2 stops32h 00m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Thu 24/9
11:00-19:20
2 stops41h 20m
Belfast Intl
Thu 1/10
06:10-09:00
2 stops41h 50m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Wed 23/9
06:00-13:45
2 stops40h 45m
Belfast Intl
Wed 30/9
06:15-06:05
2 stops38h 50m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Sun 20/12
21:35-21:25
3 stops34h 50m
Belfast Intl
Mon 4/1
17:55-19:25
3 stops62h 30m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Sat 19/12
06:00-08:55
2 stops37h 55m
Belfast Intl
Sun 20/12
14:10-18:35
2 stops41h 25m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Thu 1/10
08:15-19:30
2 stops44h 15m
SydneyBelfast
SYD Sydney Kingsford Smith - BFS Belfast Intl
SYDBFS
Sydney Kingsford Smith
Mon 30/11
20:05-17:35
3 stops56h 30m
Best time to book a flight from Sydney to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Sydney with our price prediction graph.
Related info for your journey
Find useful and relevant information for your journey from Sydney to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Belfast Intl Airport?
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Other flights to Belfast Intl
Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 August 2026.
Complete your trip
Complete your trip to Belfast Intl by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to Northern Ireland
Book a non-stop flight to one of these other cities located in Northern Ireland.
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Sydney and Belfast Intl flights
Browse other Sydney and Belfast Intl flight options. Last updated on 11 August 2026.
Other flights from Sydney
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How does Cheapflights help users find flights from Sydney to Belfast Intl?
Cheapflights helps you search for flights from Sydney to Belfast Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Sydney to Belfast Intl?
Cheapflights helps you find that perfect flight to Belfast Intl from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Sydney to Belfast Intl with no change fees?
Need flexible booking options for your flight to Belfast Intl from Sydney? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Sydney to Belfast Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Sydney today and book when prices fit your budget.