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Cheap flights from Belfast to Sydney from £784

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SYD
20 Feb — 27 Feb1
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 21 January 2026.

Thu 5/317:45
BHD
-
SYD
2 stops28h 40m
Multiple Airlines
Sat 21/311:25
SYD
-
BHD
2 stops56h 00m
Multiple Airlines
Deal found 19/1£784
Wed 11/311:25
BHD
-
SYD
2 stops35h 00m
China Southern
Sun 15/311:25
SYD
-
BHD
2 stops66h 10m
China Southern
Deal found 19/1£788
Thu 12/311:05
BHD
-
SYD
2 stops35h 20m
China Southern
Mon 16/311:25
SYD
-
BHD
2 stops66h 15m
China Southern
Deal found 18/1£871
Thu 5/316:00
BFS
-
SYD
2 stops38h 55m
Multiple Airlines
Thu 12/321:45
SYD
-
BFS
2 stops35h 35m
Multiple Airlines
Deal found 19/1£889
Tue 17/211:25
BHD
-
SYD
2 stops45h 55m
Multiple Airlines
Tue 24/222:00
SYD
-
BHD
2 stops47h 15m
Multiple Airlines
Deal found 20/1£950
Thu 24/909:35
BHD
-
SYD
2 stops36h 30m
American Airlines
Fri 16/1018:50
SYD
-
BHD
2 stops33h 25m
American Airlines
Deal found 19/1£1,006
Thu 12/311:05
BHD
-
SYD
2 stops32h 50m
British Airways
Mon 16/311:15
SYD
-
BHD
2 stops32h 50m
British Airways
Deal found 19/1£1,037
Tue 17/208:35
BFS
-
SYD
2 stops26h 55m
Multiple Airlines
Tue 24/221:10
SYD
-
BFS
2 stops32h 40m
Multiple Airlines
Deal found 20/1£1,064
Fri 6/315:05
BFS
-
SYD
2 stops28h 30m
Multiple Airlines
Fri 13/320:05
SYD
-
BFS
3 stops36h 55m
Multiple Airlines
Deal found 20/1£1,075
Thu 24/917:30
BHD
-
SYD
3 stops28h 40m
KLM
Fri 16/1011:10
SYD
-
BHD
3 stops39h 45m
KLM
Deal found 19/1£1,107
Thu 5/306:30
BHD
-
SYD
3 stops38h 00m
KLM
Sat 21/316:15
SYD
-
BHD
2 stops35h 35m
KLM
Deal found 19/1£1,117
Thu 24/916:00
BHD
-
SYD
2 stops33h 00m
Multiple Airlines
Fri 16/1014:00
SYD
-
BHD
3 stops40h 30m
Multiple Airlines
Deal found 19/1£1,146

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 21 January 2026.

Round-trip from

£784

Popular in

July

Cheapest in

October

Average price

£1,188
5/3-21/3
  • 5/3-21/3
  • 4 total stops
  • 84h 40m total
  • Belfast to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 21 January 2026.
Use the filters below to find and compare flights from Belfast to Sydney that are best for you.

Fly from

Belfast

Fly to

Sydney

Route

Depart

Return

Price

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Thu 5/3

17:45-09:25

2 stops28h 40m

Sydney Kingsford Smith

Sat 21/3

11:25-08:25

2 stops56h 00m

£784

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Thu 12/3

11:05-09:25

2 stops35h 20m

Sydney Kingsford Smith

Mon 16/3

11:25-18:40

2 stops66h 15m

£871

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 5/3

16:00-17:55

2 stops38h 55m

Sydney Kingsford Smith

Thu 12/3

21:45-22:20

2 stops35h 35m

£889

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 17/2

11:25-20:20

2 stops45h 55m

Sydney Kingsford Smith

Tue 24/2

22:00-10:15

2 stops47h 15m

£950

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Wed 11/3

11:25-09:25

2 stops35h 00m

Sydney Kingsford Smith

Sun 15/3

22:00-18:35

2 stops55h 35m

£958

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Thu 12/3

11:05-06:55

2 stops32h 50m

Sydney Kingsford Smith

Mon 16/3

11:15-09:05

2 stops32h 50m

£1,037

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 17/2

08:35-22:30

2 stops26h 55m

Sydney Kingsford Smith

Tue 24/2

21:10-18:50

2 stops32h 40m

£1,064

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 6/3

15:05-06:35

2 stops28h 30m

Sydney Kingsford Smith

Fri 13/3

20:05-22:00

3 stops36h 55m

£1,075

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Thu 5/3

06:30-07:30

3 stops38h 00m

Sydney Kingsford Smith

Sat 21/3

16:15-16:50

2 stops35h 35m

£1,117

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Fri 6/2

14:50-12:00

2 stops34h 10m

Sydney Kingsford Smith

Tue 10/2

21:40-16:45

2 stops30h 05m

£1,612

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 11 results
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 £498). Flying from Belfast to Sydney in August is currently the most expensive (average of £1,390). 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.

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 21 January 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
3,721 reviews
Check prices

Overall

7.4

Food

7.3

Crew

7.9

Entertainment

7.4

Comfort

7.4

Boarding

7.5

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
3,721 reviews
Qatar Airways
7.4
Good
3,721 reviews
Check prices

Overall

7.4

Food

7.3

Crew

7.9

Entertainment

7.4

Comfort

7.4

Boarding

7.5

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
7,690 reviews
Qatar Airways
7.4
Good
3,721 reviews
Check prices

Overall

7.4

Food

7.3

Crew

7.9

Entertainment

7.4

Comfort

7.4

Boarding

7.5

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?

    China Southern and British Airways can get you from Belfast to Sydney in just under 32h 50m. Your travel time can differ by up to 2h 30m. Belfast and Sydney are separated by a distance of 10622 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, Qatar Airways (£498), and British Airways (£974) offers the cheapest pricing from Belfast to Sydney. Qatar Airways is priced at 59% 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 £498). Flying from Belfast to Sydney in August is currently the most expensive (average of £1,390). 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
Coogee
Manly

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 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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£498Average£1,147FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£974Average£1,194FlexibilityNo 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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