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Cheap flights from Northern Ireland to Sydney from £434

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SYD
3 Nov — 10 Nov1
1 adult
1 adult, Economy

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 October 2025.

Round-trip from

£797

One-way from

£434

Popular in

December

Cheapest in

November

Average price

£1,111
12/11-9/12
  • 12/11-9/12
  • 4 total stops
  • 73h 50m total
  • Northern Ireland to Sydney
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4/11
  • 4/11
  • 2 total stops
  • 50h 05m total
  • Northern Ireland to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£22 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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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 October 2025.

Wed 12/1117:40BHD - SYD
2 stops28h 45mMultiple Airlines
Tue 9/1222:10SYD - BHD
2 stops45h 05mMultiple Airlines
Deal found 2/10£797
Sun 16/1105:45BFS - SYD
3 stops41h 55mMultiple Airlines
Sun 23/1120:05SYD - BFS
3 stops36h 50mMultiple Airlines
Deal found 2/10£821
Wed 12/1116:35BFS - SYD
3 stops39h 45mMultiple Airlines
Tue 9/1221:15SYD - BFS
3 stops34h 00mMultiple Airlines
Deal found 2/10£1,072
Fri 21/1114:30BFS - SYD
3 stops41h 20mMultiple Airlines
Sat 29/1107:15SYD - BFS
3 stops38h 40mMultiple Airlines
Deal found 3/10£1,096
Tue 28/1006:30BHD - SYD
2 stops37h 05mMultiple Airlines
Tue 2/1211:30SYD - BHD
2 stops40h 20mMultiple Airlines
Deal found 2/10£1,280
Tue 21/1017:25BHD - SYD
2 stops27h 55mMultiple Airlines
Tue 2/1211:30SYD - BHD
2 stops40h 20mMultiple Airlines
Deal found 3/10£1,383

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 858,174 searches. Data last updated 4 October 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

Wed 12/11

17:40-09:25

2 stops28h 45m

Sydney Kingsford Smith

Tue 9/12

22:10-08:15

2 stops45h 05m

£797

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Sun 16/11

05:45-10:40

3 stops41h 55m

Sydney Kingsford Smith

Sun 23/11

20:05-21:55

3 stops36h 50m

£821

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Wed 12/11

16:35-19:20

3 stops39h 45m

Sydney Kingsford Smith

Tue 9/12

21:15-20:15

3 stops34h 00m

£1,072

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 15/3

10:40-09:00

2 stops35h 20m

Sydney Kingsford Smith

Wed 18/3

13:05-10:15

2 stops32h 10m

£1,095

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Fri 21/11

14:30-18:50

3 stops41h 20m

Sydney Kingsford Smith

Sat 29/11

07:15-10:55

3 stops38h 40m

£1,096

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 15/3

15:10-09:00

2 stops54h 50m

Sydney Kingsford Smith

Thu 19/3

11:20-10:30

2 stops58h 10m

£1,097

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 15/3

14:25-06:50

2 stops29h 25m

Sydney Kingsford Smith

Thu 19/3

15:50-09:45

2 stops28h 55m

£1,248

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Tue 28/10

06:30-06:35

2 stops37h 05m

Sydney Kingsford Smith

Tue 2/12

11:30-16:50

2 stops40h 20m

£1,280

BelfastSydney

BHD - SYD

BHDSYD

Belfast City

Sun 15/3

17:35-18:50

2 stops38h 15m

Sydney Kingsford Smith

Wed 18/3

21:40-07:30

2 stops44h 50m

£1,334

BelfastSydney

BFS - SYD

BFSSYD

Belfast Intl

Tue 4/11

20:55-18:50

3 stops58h 55m

£445

Flights are sorted by cheapest return flights first.

Deals found on 2/10

Showing 1-10 of 24 results
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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 £985). Flying from Northern Ireland to Sydney in July is currently the most expensive (average of £1,728). 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.

What is the cheapest time of day to fly from NIR to SYD?

Find hourly flight availability from Northern Ireland to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 October 2025.

When flying from Northern Ireland to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Northern Ireland to Sydney?

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?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith (SYD) is the airport most travelers will use when flying to Sydney from Northern Ireland.

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

    American Airlines can get you from Northern Ireland to Sydney in just under 35h 20m. Your travel time can differ by up to . There are 10622 mi between Northern Ireland and Sydney.

  • 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 £985). Flying from Northern Ireland to Sydney in July is currently the most expensive (average of £1,728). 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
Coogee
Manly

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Alternative routes for Northern Ireland to Sydney

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Top airline flying from Northern Ireland to Sydney

Discover the top airline that operate flights from Northern Ireland 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 4 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£977Average£1,191FlexibilityNo 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 Northern Ireland to Sydney?

Cheapflights helps you search for flights from Northern Ireland to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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?

Yes, Cheapflights offers price alerts on Northern Ireland to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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