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Cheap flights from Belfast to Sydney from $1,658

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SYD
11 May — 18 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Sydney
Explore the most affordable flight options available from Belfast to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 April 2026.

Fri 8/516:25
BHD
-
SYD
2 stops42h 00m
China Southern
Fri 15/521:45
SYD
-
BHD
2 stops55h 45m
China Southern
Deal found 8/4$1,658
Wed 14/1008:15
BFS
-
SYD
2 stops43h 20m
Multiple Airlines
Tue 10/1121:30
SYD
-
BFS
2 stops33h 40m
Multiple Airlines
Deal found 9/4$1,695
Wed 14/1007:00
BHD
-
SYD
2 stops44h 35m
Multiple Airlines
Tue 10/1112:00
SYD
-
BHD
2 stops36h 35m
Multiple Airlines
Deal found 9/4$1,873
Sat 23/518:20
BHD
-
SYD
2 stops37h 30m
Multiple Airlines
Sat 30/520:50
SYD
-
BHD
2 stops50h 00m
Multiple Airlines
Deal found 8/4$2,035
Mon 25/506:40
BFS
-
SYD
2 stops30h 25m
Multiple Airlines
Mon 1/606:00
SYD
-
BFS
2 stops34h 40m
Multiple Airlines
Deal found 10/4$2,081
Tue 26/510:35
BFS
-
SYD
2 stops26h 30m
Multiple Airlines
Tue 2/606:00
SYD
-
BFS
2 stops36h 55m
Multiple Airlines
Deal found 11/4$2,144
Sat 4/718:20
BHD
-
SYD
2 stops50h 50m
Multiple Airlines
Sat 1/821:30
SYD
-
BHD
2 stops49h 20m
Multiple Airlines
Deal found 9/4$2,207
Sat 4/706:20
BFS
-
SYD
3 stops39h 55m
Multiple Airlines
Sat 1/821:30
SYD
-
BFS
2 stops32h 55m
Multiple Airlines
Deal found 9/4$2,310
Sat 23/516:55
BFS
-
SYD
2 stops28h 10m
Multiple Airlines
Sat 30/520:50
SYD
-
BFS
2 stops35h 35m
Multiple Airlines
Deal found 8/4$2,492
Mon 27/711:05
BHD
-
SYD
2 stops34h 05m
Multiple Airlines
Mon 10/821:30
SYD
-
BHD
2 stops28h 50m
Multiple Airlines
Deal found 8/4$2,642
Wed 14/1017:30
BHD
-
SYD
3 stops28h 40m
KLM
Tue 10/1112:00
SYD
-
BHD
2 stops39h 50m
KLM
Deal found 9/4$2,686
Tue 28/709:40
BHD
-
SYD
3 stops37h 40m
American Airlines
Thu 13/809:10
SYD
-
BHD
2 stops39h 20m
American Airlines
Deal found 8/4$2,751

Find flight deals from Belfast to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Sydney (SYD). 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 April 2026.

Round-trip from

$1,658

Popular in

July

Cheapest in

November

Average price

$2,409
China Southern
  • China Southern
  • 8/5-15/5
  • 4 total stops
  • 97h 45m total
  • Belfast to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($349 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($80 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Sydney 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 647,157 searches. Data last updated 11 April 2026.
Use the filters below to find and compare flights from Belfast to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 25/5

06:40-22:05

2 stops30h 25m

Sydney Kingsford Smith

Mon 1/6

06:00-07:40

2 stops34h 40m

$2,081

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sat 4/7

18:20-06:10

2 stops50h 50m

Sydney Kingsford Smith

Sat 1/8

21:30-13:50

2 stops49h 20m

$2,207

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 4/7

06:20-07:15

3 stops39h 55m

Sydney Kingsford Smith

Sat 1/8

21:30-21:25

2 stops32h 55m

$2,310

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 23/5

16:55-06:05

2 stops28h 10m

Sydney Kingsford Smith

Sat 30/5

20:50-23:25

2 stops35h 35m

$2,492

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 8/5

06:05-19:25

2 stops28h 20m

Sydney Kingsford Smith

Fri 15/5

11:25-14:25

2 stops36h 00m

$3,166

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 26/5

14:45-16:00

2 stops40h 15m

Sydney Kingsford Smith

Tue 2/6

21:05-07:40

3 stops43h 35m

$3,214

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Mon 27/7

17:30-06:45

2 stops28h 15m

Sydney Kingsford Smith

Sun 9/8

11:40-16:55

2 stops38h 15m

$4,657

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 28/7

09:50-06:45

2 stops35h 55m

Sydney Kingsford Smith

Sun 9/8

11:40-16:55

2 stops38h 15m

$4,986

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 26/7

17:30-06:30

3 stops28h 00m

Sydney Kingsford Smith

Sun 9/8

11:40-09:20

3 stops30h 40m

$6,002
Fastest return journey

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sat 25/7

16:15-06:05

2 stops28h 50m

Sydney Kingsford Smith

Sun 9/8

14:35-08:40

2 stops27h 05m

$6,592

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Belfast 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 Belfast to Sydney

What is the cheapest month to book a flight from Belfast to Sydney?

Currently, May is the cheapest month in which you can book a flight from Belfast to Sydney (average of $948). Flying from Belfast to Sydney in July is currently the most expensive (average of $3,040). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Related info for your journey

Find useful and relevant information for your journey from Belfast to Sydney. 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 into for flights to Sydney from Belfast?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Belfast. On average, Kingsford Smith has 0 inbound flights from Belfast per day from 0 airlines. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • How long is the flight from Belfast to Sydney?

    Airlines like KLM fly from Belfast to Sydney in about 28h 15m. The time it takes to get you to your destination can typically vary by up to . The distance from Belfast to Sydney is about 17094 km.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Belfast to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Belfast to Sydney (average of $948). Flying from Belfast to Sydney in July is currently the most expensive (average of $3,040). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Terrigal
Katoomba
Lithgow
Cronulla
Manly
Bondi Beach
Coogee
Leura
Randwick

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to Sydney flights
Belfast Intl to Sydney flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Belfast to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Belfast to Sydney with no change fees?

Yes, we can. To see specific flights from Belfast to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Belfast today and book when prices fit your budget.

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