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Cheap flights from Northern Ireland to Sydney from $2,012

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SYD
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 4 November 2025.

Round-trip from

$2,012

Popular in

December

Cheapest in

October

Average price

$2,232
American Airlines
  • American Airlines
  • 15/3-18/3
  • 4 total stops
  • 71h 40m total
  • Northern Ireland to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($188 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 4 November 2025.

Wed 3/1206:30BFS - SYD
2 stops40h 30mMultiple Airlines
Wed 10/1212:00SYD - BFS
2 stops40h 55mMultiple Airlines
Deal found 3/11$2,158
Wed 3/1211:25BHD - SYD
2 stops41h 05mMultiple Airlines
Wed 10/1220:40SYD - BHD
2 stops34h 35mMultiple Airlines
Deal found 3/11$2,170
Thu 18/1209:45BFS - SYD
3 stops37h 40mMultiple Airlines
Thu 25/1212:30SYD - BFS
3 stops33h 50mMultiple Airlines
Deal found 3/11$2,738
Wed 5/1116:35BFS - SYD
2 stops27h 15mMultiple Airlines
Wed 12/1120:05SYD - BFS
3 stops31h 10mMultiple Airlines
Deal found 4/11$2,802
Sat 20/1223:10BFS - SYD
2 stops35h 40mMultiple Airlines
Sun 11/115:15SYD - BFS
3 stops40h 00mMultiple Airlines
Deal found 4/11$2,838
Sat 20/1214:15BHD - SYD
2 stops34h 40mMultiple Airlines
Sun 11/110:45SYD - BHD
3 stops44h 45mMultiple Airlines
Deal found 4/11$3,174
Sat 27/1217:20BHD - SYD
2 stops26h 35mMultiple Airlines
Fri 16/111:30SYD - BHD
2 stops40h 20mMultiple Airlines
Deal found 3/11$3,800
Sat 27/1209:15BHD - SYD
2 stops36h 45mAmerican Airlines
Fri 16/109:45SYD - BHD
3 stops39h 30mAmerican Airlines
Deal found 4/11$4,985

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 4 November 2025.
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

BHD - SYD

BHDSYD

Belfast City

Sun 15/3

06:30-09:00

2 stops39h 30m

Sydney Kingsford Smith

Wed 18/3

13:05-10:15

2 stops32h 10m

$2,012

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 3/12

06:30-10:00

2 stops40h 30m

Sydney Kingsford Smith

Wed 10/12

12:00-17:55

2 stops40h 55m

$2,158

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Wed 3/12

11:25-15:30

2 stops41h 05m

Sydney Kingsford Smith

Wed 10/12

20:40-20:15

2 stops34h 35m

$2,170

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Thu 18/12

09:45-10:25

3 stops37h 40m

Sydney Kingsford Smith

Thu 25/12

12:30-11:20

3 stops33h 50m

$2,738

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sat 20/12

23:10-21:50

2 stops35h 40m

Sydney Kingsford Smith

Sun 11/1

15:15-20:15

3 stops40h 00m

$2,838

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sat 20/12

14:15-11:55

3 stops34h 40m

Sydney Kingsford Smith

Sun 11/1

10:45-20:30

3 stops44h 45m

$3,228

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 4/1

06:30-20:50

2 stops27h 20m

Sydney Kingsford Smith

Wed 4/3

11:05-09:10

2 stops33h 05m

$3,343

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sat 27/12

17:20-06:55

2 stops26h 35m

Sydney Kingsford Smith

Fri 16/1

11:30-16:50

2 stops40h 20m

$3,800

Flights are sorted by cheapest return flights first.

Deals found on 3/11

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, November is the cheapest month in which you can book a flight from Northern Ireland to Sydney (average of $1,878). Flying from Northern Ireland to Sydney in August is currently the most expensive (average of $2,450). 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?

    American Airlines can get you from Northern Ireland to Sydney in just under 39h 30m. 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, November is the cheapest month in which you can book a flight from Northern Ireland to Sydney (average of $1,878). Flying from Northern Ireland to Sydney in August is currently the most expensive (average of $2,450). 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
Katoomba
Penrith
Manly
Terrigal
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

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

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