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Cheap flights from Sydney to Belfast Intl Airport from £554

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BFS
30 Apr — 7 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Belfast Intl
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 31 March 2026.

Mon 11/515:40
SYD
-
BFS
2 stops32h 55m
Multiple Airlines
Mon 18/507:05
BFS
-
SYD
2 stops24h 45m
Multiple Airlines
Deal found 27/3£865
Tue 12/521:10
SYD
-
BFS
2 stops35h 00m
Multiple Airlines
Tue 19/516:40
BFS
-
SYD
2 stops28h 25m
Multiple Airlines
Deal found 28/3£1,063
Fri 15/520:50
SYD
-
BFS
2 stops33h 25m
Multiple Airlines
Fri 22/517:05
BFS
-
SYD
2 stops28h 05m
Multiple Airlines
Deal found 30/3£1,069
Sun 10/515:40
SYD
-
BFS
2 stops31h 10m
Multiple Airlines
Sun 17/513:25
BFS
-
SYD
2 stops31h 45m
Multiple Airlines
Deal found 26/3£1,073
Wed 13/515:40
SYD
-
BFS
2 stops32h 40m
Multiple Airlines
Wed 20/506:15
BFS
-
SYD
2 stops25h 35m
Multiple Airlines
Deal found 29/3£1,128
Wed 13/506:00
SYD
-
BFS
2 stops34h 40m
Multiple Airlines
Sun 7/607:00
BFS
-
SYD
2 stops30h 05m
Multiple Airlines
Deal found 27/3£1,195
Sat 13/621:30
SYD
-
BFS
2 stops34h 55m
Multiple Airlines
Sat 11/706:20
BFS
-
SYD
3 stops39h 55m
Multiple Airlines
Deal found 30/3£1,262

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 31 March 2026.

Round-trip from

£865

One-way from

£459

Popular in

July

Cheapest in

October

Average price

£1,623
11/5-18/5
  • 11/5-18/5
  • 4 total stops
  • 57h 40m total
  • Sydney to Belfast
Search Deals
30/4
  • 30/4
  • 3 total stops
  • 43h 00m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£160 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£46 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 March 2026.
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

Price

Cheapest return flight
Fastest return journey

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 11/5

15:40-15:35

2 stops32h 55m

Belfast Intl

Mon 18/5

07:05-16:50

2 stops24h 45m

£865

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 12/5

21:10-23:10

2 stops35h 00m

Belfast Intl

Tue 19/5

16:40-06:05

2 stops28h 25m

£1,063

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 15/5

20:50-21:15

2 stops33h 25m

Belfast Intl

Fri 22/5

17:05-06:10

2 stops28h 05m

£1,069

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 10/5

15:40-13:50

2 stops31h 10m

Belfast Intl

Sun 17/5

13:25-06:10

2 stops31h 45m

£1,073

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 13/5

15:40-15:20

2 stops32h 40m

Belfast Intl

Wed 20/5

06:15-16:50

2 stops25h 35m

£1,128

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 13/5

06:00-07:40

2 stops34h 40m

Belfast Intl

Sun 7/6

07:00-22:05

2 stops30h 05m

£1,195

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 13/6

21:30-23:25

2 stops34h 55m

Belfast Intl

Sat 11/7

06:20-07:15

3 stops39h 55m

£1,262
Cheapest one-way
Fastest single journey

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 3/5

15:40-13:50

2 stops31h 10m

£554

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 10/4

09:45-11:55

3 stops59h 10m

£688

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 9/4

10:15-23:00

3 stops45h 45m

£728

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Belfast Intl Airport

How much does it cost for a return flight from Sydney to Belfast Intl Airport?

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.

  • What airport do you fly from for flights from Sydney to Belfast Intl?

    If you book a flight to Belfast Intl from Sydney, you will be flying from Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney. There are 0 flights from Kingsford Smith to Belfast Intl per day from 0 different airlines.

  • Can I find deals for flights from Sydney to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Sydney to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Belfast Intl.

  • Can I find deals for business class flights from Sydney to Belfast Intl?

    Yes. Cheapflights offers flight deals from Sydney to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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How does Cheapflights help users find flights from Sydney to Belfast Intl?

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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.

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