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Cheap flights from Ireland to Sydney from £423

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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SYD
26 May — 2 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Sydney
Explore the most affordable flight options available from Ireland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 April 2026.

Tue 26/520:35
DUB
-
SYD
1 stop35h 15m
Etihad Airways
Thu 6/821:30
SYD
-
DUB
1 stop30h 35m
Etihad Airways
Deal found 26/4£870
Wed 4/1113:25
DUB
-
SYD
2 stops33h 35m
China Eastern
Fri 13/1121:30
SYD
-
DUB
2 stops36h 25m
China Eastern
Deal found 24/4£872
Tue 3/1108:45
DUB
-
SYD
2 stops41h 50m
China Eastern
Fri 13/1121:30
SYD
-
DUB
2 stops36h 25m
China Eastern
Deal found 24/4£873
Tue 3/1106:00
DUB
-
SYD
2 stops44h 35m
China Eastern
Wed 18/1121:30
SYD
-
DUB
2 stops60h 25m
China Eastern
Deal found 24/4£875
Mon 23/1108:10
DUB
-
SYD
1 stop22h 45m
Etihad Airways
Tue 2/316:35
SYD
-
DUB
1 stop24h 50m
Etihad Airways
Deal found 25/4£877
Thu 10/920:35
DUB
-
SYD
1 stop35h 15m
Etihad Airways
Mon 21/921:30
SYD
-
DUB
1 stop30h 35m
Etihad Airways
Deal found 24/4£879
Sat 14/1108:45
DUB
-
SYD
2 stops38h 15m
China Eastern
Wed 18/1112:00
SYD
-
DUB
2 stops45h 10m
China Eastern
Deal found 23/4£882
Tue 26/520:35
DUB
-
SYD
1 stop35h 15m
Etihad Airways
Mon 6/715:40
SYD
-
DUB
1 stop24h 35m
Etihad Airways
Deal found 23/4£887
Sun 17/520:35
DUB
-
SYD
1 stop35h 15m
Etihad Airways
Wed 20/515:40
SYD
-
DUB
1 stop36h 25m
Etihad Airways
Deal found 26/4£893
Fri 15/509:00
DUB
-
SYD
1 stop22h 50m
Etihad Airways
Wed 10/615:40
SYD
-
DUB
1 stop24h 35m
Etihad Airways
Deal found 22/4£898
Tue 3/1119:50
DUB
-
SYD
1 stop35h 05m
Etihad Airways
Tue 24/1121:30
SYD
-
DUB
1 stop26h 05m
Etihad Airways
Deal found 22/4£905
Tue 9/620:35
DUB
-
SYD
1 stop35h 15m
Etihad Airways
Tue 16/615:40
SYD
-
DUB
1 stop24h 35m
Etihad Airways
Deal found 25/4£907

Find flight deals from Ireland to Sydney

Keep the following information in mind while searching for Ireland to Sydney flight deals. Data was last updated 26 April 2026.

Round-trip from

£870

One-way from

£423

Popular in

July

Cheapest in

September

Average price

£1,057
Etihad Airways
  • Etihad Airways
  • 26/5-6/8
  • 2 total stops
  • 65h 50m total
  • Ireland to Sydney
Search Deals
27/8
  • 27/8
  • 2 total stops
  • 36h 35m total
  • Ireland to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from 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 26 April 2026.
Use the filters below to find and compare flights from Ireland to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSydney

DUB - SYD

DUBSYD

Dublin

Tue 9/6

16:20-12:35

2 stops59h 15m

Sydney Kingsford Smith

Tue 16/6

11:00-22:25

2 stops44h 25m

£912

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sat 3/10

05:35-09:45

2 stops43h 10m

Sydney Kingsford Smith

Tue 13/10

22:05-16:00

2 stops27h 55m

£964

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sun 11/10

08:15-21:40

2 stops27h 25m

Sydney Kingsford Smith

Tue 20/10

15:50-13:30

1 stop31h 40m

£1,058

DublinSydney

DUB - SYD

DUBSYD

Dublin

Fri 2/10

05:35-09:35

2 stops43h 00m

Sydney Kingsford Smith

Thu 15/10

22:05-23:05

2 stops35h 00m

£1,074

DublinSydney

DUB - SYD

DUBSYD

Dublin

Tue 26/5

15:55-06:05

2 stops29h 10m

Sydney Kingsford Smith

Wed 8/7

14:35-09:00

2 stops27h 25m

£1,078
Fastest return journey

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sat 3/10

20:35-06:35

1 stop24h 00m

Sydney Kingsford Smith

Sun 18/10

16:40-07:15

1 stop24h 35m

£1,089

DublinSydney

DUB - SYD

DUBSYD

Dublin

Wed 3/6

08:15-21:50

2 stops28h 35m

Sydney Kingsford Smith

Mon 22/6

14:50-06:45

1 stop24h 55m

£1,090

DublinSydney

DUB - SYD

DUBSYD

Dublin

Mon 27/7

20:35-06:10

1 stop24h 35m

Sydney Kingsford Smith

Thu 13/8

21:30-19:05

1 stop30h 35m

£1,104

DublinSydney

DUB - SYD

DUBSYD

Dublin

Mon 28/9

15:55-06:05

2 stops29h 10m

Sydney Kingsford Smith

Wed 14/10

15:35-11:20

2 stops29h 45m

£1,108

DublinSydney

DUB - SYD

DUBSYD

Dublin

Mon 28/9

14:30-06:05

2 stops30h 35m

Sydney Kingsford Smith

Sat 17/10

15:35-11:20

2 stops29h 45m

£1,108

Flights are sorted by cheapest return flights first.

Deals found on 26/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Ireland to Sydney

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

How far ahead should I book a flight from Ireland to Sydney?

The price you pay for your flight from Ireland to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Ireland to Sydney (average of £373). Flying from Ireland to Sydney in July is currently the most expensive (average of £886). 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 Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 26 April 2026.
See what other customers who have flown with Emirates,Qatar Airways, andTurkish Airlines from Ireland to Sydney have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Emirates
8.1
Very Good
3,568 reviews
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Qatar Airways
7.4
Good
3,725 reviews
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Turkish Airlines
7.4
Good
4,337 reviews
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Etihad Airways
7.3
Good
1,433 reviews
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
British Airways
6.7
Okay
7,917 reviews
Emirates
8.1
Very Good
3,568 reviews
Check prices

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Food

7.9

Entertainment

8.2

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.

Related info for your journey

Find useful and relevant information for your journey from 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 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 Ireland.

  • How long is the flight from Ireland to Sydney?

    For as low as £1,058, China Eastern can have you in Sydney from Ireland in 27h 25m. Airlines will cover a distance of 10688 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Ireland to Sydney one-way?

    To fly one-way, consider booking your trip with Etihad Airways, which is currently one of the cheapest options available, starting at £462. Emirates flights start at £496 while deals on Qantas Airways start at £501 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from 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 Ireland to Sydney?

    Currently, August is the cheapest month in which you can book a flight from Ireland to Sydney (average of £373). Flying from Ireland to Sydney in July is currently the most expensive (average of £886). 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
Wollongong
Parramatta
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Ireland to Sydney

Discover the top 10 airlines that operate flights from 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 26 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£649Average£847FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£655Average£761FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£687Average£935FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Etihad AirwaysCheapest£789Average£961FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest£816Average£1,011FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air FranceCheapest£841Average£1,179FlexibilityNo cancel feeOn-time77%
Search Air France flights
Qatar AirwaysCheapest£857Average£1,093FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Qantas AirwaysCheapest£879Average£1,200FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
EmiratesCheapest£939Average£1,339FlexibilityNo cancel feeOn-time75%
Search Emirates flights
United AirlinesCheapest£1,031Average£1,317FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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 Sydney from Ireland today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Ireland to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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