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Cheap flights from Belfast Intl Airport to Australia from £417

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SYD
15 Mar — 22 Mar1
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 13 February 2026.

Sun 3/520:50
BFS
-
SYD
2 stops51h 10m
Multiple Airlines
Mon 11/520:30
SYD
-
BFS
2 stops32h 55m
Multiple Airlines
Deal found 12/2£739
Wed 11/308:35
BFS
-
SYD
2 stops42h 00m
Multiple Airlines
Wed 18/321:30
SYD
-
BFS
2 stops31h 25m
Multiple Airlines
Deal found 9/2£747
Wed 13/514:35
BFS
-
SYD
2 stops33h 25m
Multiple Airlines
Mon 8/620:30
SYD
-
BFS
2 stops32h 55m
Multiple Airlines
Deal found 11/2£753
Thu 17/906:10
BFS
-
SYD
2 stops28h 30m
Multiple Airlines
Wed 14/1015:15
SYD
-
BFS
2 stops38h 25m
Multiple Airlines
Deal found 10/2£889
Thu 12/307:05
BFS
-
SYD
2 stops47h 50m
Multiple Airlines
Thu 19/321:45
SYD
-
BFS
2 stops35h 35m
Multiple Airlines
Deal found 10/2£898
Mon 8/606:10
BFS
-
SYD
2 stops41h 50m
Multiple Airlines
Sun 21/620:30
SYD
-
BFS
2 stops32h 45m
Multiple Airlines
Deal found 9/2£910
Thu 2/406:10
BFS
-
BNE
2 stops41h 50m
Multiple Airlines
Mon 27/411:00
BNE
-
BFS
2 stops42h 25m
Multiple Airlines
Deal found 12/2£962
Wed 14/1008:15
BFS
-
SYD
2 stops39h 45m
Multiple Airlines
Sat 21/1121:30
SYD
-
BFS
2 stops31h 10m
Multiple Airlines
Deal found 9/2£971
Fri 3/406:05
BFS
-
BNE
2 stops41h 55m
Multiple Airlines
Mon 27/411:00
BNE
-
BFS
2 stops42h 25m
Multiple Airlines
Deal found 12/2£1,050
Thu 3/906:10
BFS
-
SYD
2 stops41h 50m
Multiple Airlines
Sun 20/920:30
SYD
-
BFS
2 stops32h 45m
Multiple Airlines
Deal found 10/2£1,080
Thu 28/506:10
BFS
-
SYD
2 stops41h 50m
Multiple Airlines
Wed 26/820:30
SYD
-
BFS
2 stops32h 10m
Multiple Airlines
Deal found 9/2£1,102
Fri 3/406:05
BFS
-
BNE
2 stops41h 55m
Multiple Airlines
Sun 26/411:00
BNE
-
BFS
2 stops42h 15m
Multiple Airlines
Deal found 12/2£1,106

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 13 February 2026.

Round-trip from

£739

One-way from

£417

Popular in

July

Cheapest in

November

Average price

£1,238
3/5-11/5
  • 3/5-11/5
  • 4 total stops
  • 84h 05m total
  • Belfast to Australia
Search Deals
1/5
  • 1/5
  • 3 total stops
  • 45h 35m total
  • Belfast to Australia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 13 February 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

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sun 3/5

20:50-09:00

2 stops51h 10m

Sydney Kingsford Smith

Mon 11/5

20:30-20:25

2 stops32h 55m

£739

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 11/3

08:35-13:35

2 stops42h 00m

Sydney Kingsford Smith

Wed 18/3

21:30-17:55

2 stops31h 25m

£747

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 13/5

14:35-09:00

2 stops33h 25m

Sydney Kingsford Smith

Mon 8/6

20:30-20:25

2 stops32h 55m

£753

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 12/3

07:05-17:55

2 stops47h 50m

Sydney Kingsford Smith

Thu 19/3

21:45-22:20

2 stops35h 35m

£898

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Mon 8/6

06:10-09:00

2 stops41h 50m

Sydney Kingsford Smith

Sun 21/6

20:30-20:15

2 stops32h 45m

£910

BelfastBrisbane

BFS - BNE

BFSBNE

Belfast Intl

Thu 2/4

06:10-09:00

2 stops41h 50m

Brisbane

Mon 27/4

11:00-20:25

2 stops42h 25m

£962

BelfastBrisbane

BFS - BNE

BFSBNE

Belfast Intl

Fri 3/4

06:05-09:00

2 stops41h 55m

Brisbane

Mon 27/4

11:00-20:25

2 stops42h 25m

£1,050

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 28/5

06:10-09:00

2 stops41h 50m

Sydney Kingsford Smith

Wed 26/8

20:30-19:40

2 stops32h 10m

£1,102

BelfastBrisbane

BFS - BNE

BFSBNE

Belfast Intl

Fri 3/4

06:05-09:00

2 stops41h 55m

Brisbane

Sun 26/4

11:00-20:15

2 stops42h 15m

£1,106

BelfastBrisbane

BFS - BNE

BFSBNE

Belfast Intl

Tue 12/5

06:15-19:30

2 stops28h 15m

Brisbane

Wed 10/6

11:00-09:55

2 stops31h 55m

£1,153

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 23 results
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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, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Australia (average of £491). Flying from Belfast Intl Airport to Australia in July is currently the most expensive (average of £1,178). 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 13 February 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
3,731 reviews
Check prices

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Comfort

7.4

Boarding

7.5

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
3,731 reviews
Qatar Airways
7.4
Good
3,731 reviews
Check prices

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Comfort

7.4

Boarding

7.5

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
7,737 reviews
Qatar Airways
7.4
Good
3,731 reviews
Check prices

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Comfort

7.4

Boarding

7.5

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 - Melbourne or Belfast Intl - Brisbane, Belfast Intl - Perth 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, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Australia (average of £491). Flying from Belfast Intl Airport to Australia in July is currently the most expensive (average of £1,178). 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 13 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£492Average£1,132FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£963Average£1,147FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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

Cheapflights helps you find that perfect flight to Australia from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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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