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Cheap flights from Belfast to Sydney from £866

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SYD
9 May — 16 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 9 April 2026.

Mon 18/506:30
BHD
-
SYD
2 stops27h 55m
Multiple Airlines
Wed 3/614:10
SYD
-
BHD
2 stops30h 50m
Multiple Airlines
Deal found 4/4£866
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£873
Mon 18/508:15
BFS
-
SYD
2 stops26h 10m
Multiple Airlines
Wed 3/614:10
SYD
-
BFS
2 stops28h 45m
Multiple Airlines
Deal found 4/4£875
Wed 14/1008:15
BFS
-
SYD
2 stops43h 20m
Multiple Airlines
Tue 10/1121:30
SYD
-
BFS
2 stops31h 25m
Multiple Airlines
Deal found 9/4£893
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£986
Thu 21/520:05
BFS
-
SYD
2 stops35h 45m
Multiple Airlines
Thu 28/520:50
SYD
-
BFS
2 stops35h 00m
Multiple Airlines
Deal found 6/4£1,005
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£1,072
Mon 18/506:30
BHD
-
SYD
2 stops39h 35m
American Airlines
Wed 3/609:10
SYD
-
BHD
3 stops35h 50m
American Airlines
Deal found 4/4£1,149
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£1,162
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£1,217
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£1,313
Sun 5/418:20
BHD
-
SYD
2 stops37h 30m
Multiple Airlines
Sun 12/420:45
SYD
-
BHD
2 stops29h 35m
Multiple Airlines
Deal found 4/4£1,386

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 9 April 2026.

Round-trip from

£866

Popular in

July

Cheapest in

November

Average price

£1,269
18/5-3/6
  • 18/5-3/6
  • 4 total stops
  • 58h 45m total
  • Belfast to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£23 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 858,174 searches. Data last updated 9 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

BHD - SYD

BHDSYD

Belfast City

Mon 18/5

06:30-19:25

2 stops27h 55m

Sydney Kingsford Smith

Wed 3/6

14:10-12:00

2 stops30h 50m

£866
Fastest return journey

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 18/5

08:15-19:25

2 stops26h 10m

Sydney Kingsford Smith

Wed 3/6

14:10-09:55

2 stops28h 45m

£875

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 21/5

20:05-16:50

2 stops35h 45m

Sydney Kingsford Smith

Thu 28/5

20:50-22:50

2 stops35h 00m

£1,005

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Mon 18/5

06:30-07:05

2 stops39h 35m

Sydney Kingsford Smith

Wed 3/6

09:10-12:00

3 stops35h 50m

£1,149

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

£1,162

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

£1,313

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

£1,667

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Fri 8/5

17:30-09:40

3 stops31h 10m

Sydney Kingsford Smith

Fri 15/5

20:30-16:55

2 stops53h 25m

£2,021

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

£2,453

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 28/7

17:30-07:10

3 stops28h 40m

Sydney Kingsford Smith

Sun 9/8

11:40-16:55

3 stops38h 15m

£2,629

Flights are sorted by cheapest return flights first.

Deals found on 5/4

Showing 1-10 of 15 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 £499). Flying from Belfast to Sydney in July is currently the most expensive (average of £1,601). 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?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 9 April 2026.
Get a feel of what it's like to fly with Qatar Airways and British Airways from Belfast to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,727 reviews
Check prices

Food

7.3

Boarding

7.5

Overall

7.4

Entertainment

7.3

Crew

7.9

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Des,Apr 2024

KTM - DOH

All good - I regularly fly with them and have never had any issues, Thanks, Des
Qatar Airways
7.4
Good
3,727 reviews
Qatar Airways
7.4
Good
3,727 reviews
Check prices

Food

7.3

Boarding

7.5

Overall

7.4

Entertainment

7.3

Crew

7.9

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Des,Apr 2024

KTM - DOH

All good - I regularly fly with them and have never had any issues, Thanks, Des
British Airways
6.7
Okay
7,867 reviews
Qatar Airways
7.4
Good
3,727 reviews
Check prices

Food

7.3

Boarding

7.5

Overall

7.4

Entertainment

7.3

Crew

7.9

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Des,Apr 2024

KTM - DOH

All good - I regularly fly with them and have never had any issues, Thanks, Des

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?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Belfast to Sydney. 2 airlines have flights to Kingsford Smith from Belfast on a regular basis. Booking flights from Belfast to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Belfast per day.

  • How long is the flight from Belfast to Sydney?

    American Airlines can get you from Belfast to Sydney in just under 39h 35m. Your travel time can differ by up to . Belfast and Sydney are separated by a distance of 10622 mi.

  • What are the cheapest airlines flying from Belfast to Sydney round-trip?

    According to our current data, Qatar Airways (£500), and British Airways (£987) offers the cheapest pricing from Belfast to Sydney. Qatar Airways is priced at 61% lower than the current average price of a flight leaving 3 months from now.

  • 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 £499). Flying from Belfast to Sydney in July is currently the most expensive (average of £1,601). 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
Bondi Beach
Wollongong
Parramatta
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to Sydney

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

Top 2 airlines flying from Belfast to Sydney

Discover the top 2 airlines that operate flights from Belfast to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£500Average£1,269FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£987Average£1,218FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Belfast to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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?

Not ready to book yet? You can track prices for flights from Belfast to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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