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Cheap flights from Sydney to Northern Ireland from £378

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BFS
5 Nov — 12 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Sydney to Northern Ireland

Keep the following information in mind while searching for Sydney to Northern Ireland flight deals. Data was last updated 6 October 2025.

Round-trip from

£871

One-way from

£378

Popular in

July

Cheapest in

June

Average price

£1,003
19/11-26/11
  • 19/11-26/11
  • 6 total stops
  • 85h 55m total
  • Sydney to Northern Ireland
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15/1
  • 15/1
  • 3 total stops
  • 45h 25m total
  • Sydney to Northern Ireland
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Highest demand for flights based on searches. 7% potential increase in price (£66 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£54 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 Sydney to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Northern Ireland
Explore the most affordable flight options available from Sydney to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 October 2025.

Wed 19/1121:15SYD - BFS
3 stops36h 05mMultiple Airlines
Wed 26/1106:30BFS - SYD
3 stops49h 50mMultiple Airlines
Deal found 4/10£871
Tue 30/1215:55SYD - BHD
2 stops29h 35mMultiple Airlines
Tue 20/117:15BHD - SYD
2 stops26h 20mMultiple Airlines
Deal found 4/10£1,745

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Northern Ireland 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 6 October 2025.
Use the filters below to find and compare flights from Sydney to Northern Ireland that are best for you.

Fly from

Sydney

Fly to

Northern Ireland

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 19/11

21:15-22:20

3 stops36h 05m

Belfast Intl

Wed 26/11

06:30-19:20

3 stops49h 50m

£871

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 12/3

14:30-10:20

2 stops30h 50m

Belfast City

Mon 16/3

11:30-09:35

2 stops35h 05m

£1,131

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 11/3

15:15-09:10

2 stops28h 55m

Belfast City

Sun 15/3

10:40-07:25

2 stops33h 45m

£1,131

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 11/3

11:15-16:50

2 stops40h 35m

Belfast City

Sun 15/3

06:30-07:25

3 stops37h 55m

£1,312

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 12/3

12:10-16:50

2 stops39h 40m

Belfast City

Mon 16/3

06:30-07:25

3 stops37h 55m

£1,479

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 15/1

11:40-22:05

3 stops45h 25m

£378

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 20/11

12:00-17:20

3 stops40h 20m

£1,400

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Fri 12/12

21:30-21:10

3 stops58h 40m

£1,726

Flights are sorted by cheapest return flights first.

Deals found on 4/10

Best time to book a flight from Sydney to Northern Ireland

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

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

Currently, June is the cheapest month in which you can book a flight from Sydney to Northern Ireland (average of £776). Flying from Sydney to Northern Ireland in December is currently the most expensive (average of £1,255). 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 Sydney to Northern Ireland. 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 from for flights from Sydney to Northern Ireland?

    For a flight from Sydney to Northern Ireland, you will be flying from Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city.

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

    Airlines like British Airways fly from Sydney to Northern Ireland in about 30h 50m. The time it takes to get you to your destination can typically vary by up to . There are 10622 mi between Sydney and Northern Ireland.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Sydney to Northern Ireland (average of £776). Flying from Sydney to Northern Ireland in December is currently the most expensive (average of £1,255). 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

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