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Cheap flights from Northern Ireland to Sydney from $1,583

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SYD
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Sydney
Explore the most affordable flight options available from Northern Ireland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Wed 18/308:35
BFS
-
SYD
2 stops38h 25m
Multiple Airlines
Wed 25/321:30
SYD
-
BFS
2 stops35h 50m
Multiple Airlines
Deal found 1/2$1,583
Mon 12/1018:30
BHD
-
SYD
2 stops28h 55m
Multiple Airlines
Wed 28/1022:10
SYD
-
BHD
2 stops44h 20m
Multiple Airlines
Deal found 1/2$1,824
Sat 10/1009:35
BHD
-
SYD
2 stops36h 30m
American Airlines
Wed 28/1011:15
SYD
-
BHD
2 stops40h 20m
American Airlines
Deal found 1/2$1,971
Sun 11/1006:30
BHD
-
SYD
2 stops38h 25m
American Airlines
Wed 28/1011:15
SYD
-
BHD
2 stops40h 20m
American Airlines
Deal found 1/2$1,982
Sat 10/1009:35
BHD
-
SYD
2 stops36h 30m
American Airlines
Thu 29/1011:15
SYD
-
BHD
2 stops62h 00m
American Airlines
Deal found 1/2$1,986
Sat 5/907:05
BHD
-
SYD
2 stops39h 00m
American Airlines
Sun 20/912:00
SYD
-
BHD
2 stops31h 30m
American Airlines
Deal found 2/2$1,988
Sun 11/1006:30
BHD
-
SYD
2 stops37h 55m
American Airlines
Thu 29/1011:15
SYD
-
BHD
2 stops62h 00m
American Airlines
Deal found 1/2$1,998
Sun 19/415:50
BHD
-
SYD
2 stops42h 50m
Multiple Airlines
Sat 25/421:45
SYD
-
BHD
2 stops43h 55m
Multiple Airlines
Deal found 1/2$2,015
Fri 9/1012:00
BHD
-
SYD
2 stops58h 05m
American Airlines
Fri 30/1011:15
SYD
-
BHD
2 stops43h 00m
American Airlines
Deal found 1/2$2,167
Wed 28/1019:25
BHD
-
SYD
2 stops37h 00m
Multiple Airlines
Thu 21/121:00
SYD
-
BHD
2 stops30h 40m
Multiple Airlines
Deal found 2/2$2,169
Fri 9/1012:00
BHD
-
SYD
2 stops58h 05m
American Airlines
Thu 29/1011:15
SYD
-
BHD
2 stops62h 00m
American Airlines
Deal found 1/2$2,183
Wed 28/1006:30
BHD
-
SYD
3 stops50h 45m
KLM
Thu 21/109:10
SYD
-
BHD
2 stops42h 40m
KLM
Deal found 2/2$2,256

Find flight deals from Northern Ireland to Sydney

Keep the following information in mind while searching for Northern Ireland to Sydney flight deals. Data was last updated 2 February 2026.

Round-trip from

$1,583

Popular in

July

Cheapest in

October

Average price

$2,423
18/3-25/3
  • 18/3-25/3
  • 4 total stops
  • 74h 15m total
  • Northern Ireland to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($316 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 2 February 2026.
Use the filters below to find and compare flights from Northern Ireland to Sydney that are best for you.

Fly from

Northern Ireland

Fly to

Sydney

Route

Depart

Return

Price

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 18/3

08:35-10:00

2 stops38h 25m

Sydney Kingsford Smith

Wed 25/3

21:30-22:20

2 stops35h 50m

$1,583

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 19/4

15:50-19:40

2 stops42h 50m

Sydney Kingsford Smith

Sat 25/4

21:45-08:40

2 stops43h 55m

$2,015

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Wed 11/3

09:15-07:55

2 stops35h 40m

Sydney Kingsford Smith

Sun 15/3

11:15-10:20

2 stops34h 05m

$2,265

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Thu 12/3

20:00-06:55

2 stops47h 55m

Sydney Kingsford Smith

Mon 16/3

11:15-09:05

2 stops32h 50m

$2,294

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Mon 16/2

14:40-09:00

2 stops55h 20m

Sydney Kingsford Smith

Fri 20/2

14:05-10:30

2 stops31h 25m

$2,754

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 19/4

17:30-09:45

3 stops31h 15m

Sydney Kingsford Smith

Sat 25/4

07:55-09:20

2 stops34h 25m

$2,954

Flights are sorted by cheapest return flights first.

Deals found on 1/2

Best time to book a flight from Northern Ireland to Sydney

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

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

Currently, May is the cheapest month in which you can book a flight from Northern Ireland to Sydney (average of $962). Flying from Northern Ireland to Sydney in August is currently the most expensive (average of $2,684). 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.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland 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 Northern Ireland?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly into when you book flights from Northern Ireland to Sydney.

  • How long is the flight from Northern Ireland to Sydney?

    British Airways can get you from Northern Ireland to Sydney in just under 35h 40m. Your travel time can differ by up to . The distance from Northern Ireland to Sydney is about 17094 km.

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

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

  • How can I find direct flights from Northern Ireland to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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 Northern Ireland to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Northern Ireland to Sydney (average of $962). Flying from Northern Ireland to Sydney in August is currently the most expensive (average of $2,684). 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
Manly
Katoomba
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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How does Cheapflights help users find flights from Northern Ireland to Sydney?

When you search for this flight from Northern Ireland to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Northern Ireland to Sydney for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Sydney flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Northern Ireland to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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