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Cheap flights from Belfast Intl Airport to Australia from £391

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SYD
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Australia

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Australia
Explore the most affordable flight options available from Belfast Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Fri 6/306:30
BFS
-
MEL
2 stops44h 35m
Multiple Airlines
Fri 13/312:00
MEL
-
BFS
2 stops33h 20m
Multiple Airlines
Deal found 20/1£818
Mon 6/415:35
BFS
-
SYD
2 stops36h 00m
Multiple Airlines
Mon 20/413:00
SYD
-
BFS
3 stops40h 25m
Multiple Airlines
Deal found 21/1£1,010
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£1,065
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£1,077
Sat 14/206:55
BFS
-
PER
2 stops26h 25m
Multiple Airlines
Sat 7/307:35
PER
-
BFS
3 stops34h 35m
Multiple Airlines
Deal found 20/1£1,190
Sun 22/309:25
BFS
-
MEL
2 stops26h 55m
Multiple Airlines
Sun 29/323:45
MEL
-
BFS
2 stops30h 30m
Multiple Airlines
Deal found 21/1£1,197
Wed 21/117:30
BFS
-
PER
2 stops34h 25m
Multiple Airlines
Wed 28/120:20
PER
-
BFS
1 stop25h 45m
Multiple Airlines
Deal found 20/1£1,514
Fri 13/221:05
BFS
-
SYD
2 stops46h 30m
Multiple Airlines
Sat 21/221:15
SYD
-
BFS
3 stops59h 55m
Multiple Airlines
Deal found 21/1£1,542
Wed 21/117:30
BFS
-
PER
1 stop32h 30m
Multiple Airlines
Thu 29/108:30
PER
-
BFS
2 stops43h 55m
Multiple Airlines
Deal found 20/1£1,743

Find flight deals from Belfast Intl to Australia

Keep the following information in mind while searching for Belfast Intl to Australia flight deals. Data was last updated 22 January 2026.

Round-trip from

£818

One-way from

£391

Popular in

July

Cheapest in

October

Average price

£1,190
6/3-13/3
  • 6/3-13/3
  • 4 total stops
  • 77h 55m total
  • Belfast to Australia
Search Deals
26/3
  • 26/3
  • 3 total stops
  • 58h 05m total
  • Belfast to Australia
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 Intl to Australia 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 22 January 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Australia that are best for you.

Fly from

Belfast Intl

Fly to

Australia

Route

Depart

Return

Price

BelfastMelbourne

BFS - MEL

BFSMEL

Belfast Intl

Fri 6/3

06:30-14:05

2 stops44h 35m

Melbourne

Fri 13/3

12:00-10:20

2 stops33h 20m

£818

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 6/4

15:35-12:35

2 stops36h 00m

Sydney Kingsford Smith

Mon 20/4

13:00-20:25

3 stops40h 25m

£1,010

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

£1,065

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

£1,077

BelfastPerth

BFS - PER

BFSPER

Belfast Intl

Sat 14/2

06:55-17:20

2 stops26h 25m

Perth

Sat 7/3

07:35-10:10

3 stops34h 35m

£1,190

BelfastMelbourne

BFS - MEL

BFSMEL

Belfast Intl

Sun 22/3

09:25-23:20

2 stops26h 55m

Melbourne

Sun 29/3

23:45-20:15

2 stops30h 30m

£1,197

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 13/2

21:05-06:35

2 stops46h 30m

Sydney Kingsford Smith

Sat 21/2

21:15-22:10

3 stops59h 55m

£1,542

BelfastPerth

BFS - PER

BFSPER

Belfast Intl

Wed 29/4

21:10-21:55

2 stops41h 45m

£391

BelfastPerth

BFS - PER

BFSPER

Belfast Intl

Thu 26/3

10:10-04:15

3 stops58h 05m

£391

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 6/2

14:30-08:50

3 stops55h 20m

£564

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Best time to book a flight from Belfast Intl to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Belfast Intl 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 Intl Airport to Australia

What is the cheapest month to book a flight from Belfast Intl Airport to Australia?

Currently, November is the cheapest month in which you can book a flight from Belfast Intl Airport to Australia (average of £276). Flying from Belfast Intl Airport to Australia in August is currently the most expensive (average of £1,134). 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 Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated 22 January 2026.
Get a feel of what it's like to fly with Qatar Airways and British Airways from Belfast Intl Airport to Australia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,718 reviews
Check prices

Food

7.3

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Mohamed,Jul 2025

BKK - DOH

boarding process was smooth, Crew was excellent. i booked Comfort+ the seat was good but very old and the entertainment screen get stuck and difficult to control again maybe because its old device brought from other old airplanes not belong to Qatar Airways new fleets. Food is not at all matching the hype of Qatarairways, what i had in Emirates or Etihad economy class is way better.
Qatar Airways
7.4
Good
3,718 reviews
Qatar Airways
7.4
Good
3,718 reviews
Check prices

Food

7.3

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Mohamed,Jul 2025

BKK - DOH

boarding process was smooth, Crew was excellent. i booked Comfort+ the seat was good but very old and the entertainment screen get stuck and difficult to control again maybe because its old device brought from other old airplanes not belong to Qatar Airways new fleets. Food is not at all matching the hype of Qatarairways, what i had in Emirates or Etihad economy class is way better.
British Airways
6.7
Okay
7,689 reviews
Qatar Airways
7.4
Good
3,718 reviews
Check prices

Food

7.3

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Mohamed,Jul 2025

BKK - DOH

boarding process was smooth, Crew was excellent. i booked Comfort+ the seat was good but very old and the entertainment screen get stuck and difficult to control again maybe because its old device brought from other old airplanes not belong to Qatar Airways new fleets. Food is not at all matching the hype of Qatarairways, what i had in Emirates or Etihad economy class is way better.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Belfast Intl Airport to Australia?

    While some choose either Belfast Intl - Perth or Belfast Intl - Sydney Kingsford Smith, Belfast Intl - Melbourne is the most popular route from Belfast Intl Airport to Australia.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl to Australia 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 Intl Airport to Australia?

    Currently, November is the cheapest month in which you can book a flight from Belfast Intl Airport to Australia (average of £276). Flying from Belfast Intl Airport to Australia in August is currently the most expensive (average of £1,134). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Belfast Intl to Australia

Discover the top 2 airlines that operate flights from Belfast Intl to Australia. 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£499Average£1,149FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£978Average£1,168FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Belfast Intl to Australia flexibly with Cheapflights today.

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

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