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Cheap flights from Sydney to Northern Ireland from $905

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BFS
1 Mar — 8 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 30 January 2026.

Sat 14/321:15
SYD
-
BFS
3 stops34h 00m
Multiple Airlines
Sat 21/323:10
BFS
-
SYD
3 stops33h 10m
Multiple Airlines
Deal found 28/1$1,724
Mon 1/610:10
SYD
-
BHD
2 stops31h 40m
British Airways
Tue 30/613:45
BHD
-
SYD
2 stops31h 20m
British Airways
Deal found 30/1$1,734
Mon 16/321:15
SYD
-
BFS
3 stops34h 55m
Multiple Airlines
Mon 23/306:00
BFS
-
SYD
3 stops50h 20m
Multiple Airlines
Deal found 29/1$1,742
Thu 19/216:20
SYD
-
BHD
2 stops29h 00m
British Airways
Mon 23/206:35
BHD
-
SYD
2 stops37h 20m
British Airways
Deal found 27/1$1,775
Wed 18/216:20
SYD
-
BHD
2 stops27h 50m
British Airways
Sun 22/210:40
BHD
-
SYD
2 stops33h 15m
British Airways
Deal found 29/1$1,799
Sun 24/521:50
SYD
-
BHD
2 stops44h 00m
British Airways
Wed 24/611:35
BHD
-
SYD
2 stops33h 30m
British Airways
Deal found 28/1$1,800
Wed 6/514:35
SYD
-
BHD
2 stops30h 25m
British Airways
Sun 10/520:10
BHD
-
SYD
2 stops48h 55m
British Airways
Deal found 27/1$1,806
Sat 30/514:35
SYD
-
BHD
2 stops28h 30m
British Airways
Tue 30/616:25
BHD
-
SYD
2 stops28h 40m
British Airways
Deal found 30/1$1,922
Sat 30/522:10
SYD
-
BHD
2 stops45h 20m
Multiple Airlines
Tue 30/616:25
BHD
-
SYD
2 stops28h 40m
Multiple Airlines
Deal found 28/1$1,983
Mon 1/608:30
SYD
-
BHD
3 stops37h 25m
Multiple Airlines
Tue 30/619:30
BHD
-
SYD
2 stops30h 20m
Multiple Airlines
Deal found 28/1$2,844

Find 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 30 January 2026.

Round-trip from

$1,724

One-way from

$905

Popular in

July

Cheapest in

October
14/3-21/3
  • 14/3-21/3
  • 6 total stops
  • 67h 10m total
  • Sydney to Northern Ireland
Search Deals
21/5
  • 21/5
  • 3 total stops
  • 42h 15m total
  • Sydney to Northern Ireland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($687 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($152 potential savings vs. average return price).
Search Deals

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 647,157 searches. Data last updated 30 January 2026.
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

Sat 14/3

21:15-20:15

3 stops34h 00m

Belfast Intl

Sat 21/3

23:10-19:20

3 stops33h 10m

$1,724

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Mon 1/6

10:10-08:50

2 stops31h 40m

Belfast City

Tue 30/6

13:45-06:05

2 stops31h 20m

$1,734

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 16/3

21:15-21:10

3 stops34h 55m

Belfast Intl

Mon 23/3

06:00-19:20

3 stops50h 20m

$1,742

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 19/2

16:20-10:20

2 stops29h 00m

Belfast City

Mon 23/2

06:35-06:55

2 stops37h 20m

$1,775

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 18/2

16:20-09:10

2 stops27h 50m

Belfast City

Sun 22/2

10:40-06:55

2 stops33h 15m

$1,799

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 24/5

21:50-08:50

2 stops44h 00m

Belfast City

Wed 24/6

11:35-06:05

2 stops33h 30m

$1,800

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:35-12:00

2 stops30h 25m

Belfast City

Sun 10/5

20:10-06:05

2 stops48h 55m

$1,806

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sat 30/5

14:35-10:05

2 stops28h 30m

Belfast City

Tue 30/6

16:25-06:05

2 stops28h 40m

$1,922

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sat 30/5

22:10-10:30

2 stops45h 20m

Belfast City

Tue 30/6

16:25-06:05

2 stops28h 40m

$1,983

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Mon 1/6

08:30-12:55

3 stops37h 25m

Belfast City

Tue 30/6

19:30-10:50

2 stops30h 20m

$2,844

Flights are sorted by cheapest return flights first.

Deals found on 29/1

Showing 1-10 of 13 results
1
2

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, January is the cheapest month in which you can book a flight from Sydney to Northern Ireland (average of $1,531). Flying from Sydney to Northern Ireland in December is currently the most expensive (average of $2,433). 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 Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 30 January 2026.
See what other customers who have flown with British Airways from Sydney to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,705 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Crew

7.6

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,705 reviews
British Airways
6.7
Okay
7,705 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Crew

7.6

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Northern Ireland. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

    Departing from Sydney to Northern Ireland will take you 31h 40m. Airlines will cover a distance of 17094 km.

  • 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, January is the cheapest month in which you can book a flight from Sydney to Northern Ireland (average of $1,531). Flying from Sydney to Northern Ireland in December is currently the most expensive (average of $2,433). 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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Alternative routes for Sydney to Northern Ireland

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Top airline flying from Sydney to Northern Ireland

Discover the top airline that operate flights from Sydney to Northern Ireland. 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 647,157 searches. Data last updated 30 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,758Average$2,118FlexibilityNo 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 Sydney to Northern Ireland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Northern Ireland from Sydney today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Northern Ireland from Sydney 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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Yes! Cheapflights helps users easily find flights from Sydney to Northern Ireland with no change fees.

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