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Cheap flights from Ireland to Sydney from £351

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SYD
20 Jul — 27 Jul1
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 20 June 2026.

Mon 31/810:55
DUB
-
SYD
1 stop40h 40m
China Eastern
Sun 13/911:00
SYD
-
DUB
1 stop30h 00m
China Eastern
Deal found 18/6£612
Mon 31/810:55
DUB
-
SYD
1 stop40h 40m
China Eastern
Wed 16/910:05
SYD
-
DUB
2 stops54h 55m
China Eastern
Deal found 18/6£648
Mon 19/1010:55
DUB
-
SYD
1 stop37h 05m
China Eastern
Sun 8/1112:00
SYD
-
DUB
1 stop29h 15m
China Eastern
Deal found 19/6£692
Mon 31/810:55
DUB
-
SYD
1 stop40h 40m
China Eastern
Thu 17/911:00
SYD
-
DUB
1 stop30h 00m
China Eastern
Deal found 18/6£698
Mon 31/810:55
DUB
-
SYD
3 stops36h 05m
China Eastern
Mon 14/920:30
SYD
-
DUB
1 stop44h 30m
China Eastern
Deal found 18/6£703
Mon 19/1010:55
DUB
-
SYD
3 stops36h 05m
China Eastern
Mon 2/1121:30
SYD
-
DUB
1 stop43h 45m
China Eastern
Deal found 18/6£704
Fri 28/810:55
DUB
-
SYD
1 stop40h 40m
China Eastern
Sun 13/911:00
SYD
-
DUB
1 stop30h 00m
China Eastern
Deal found 18/6£723

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 20 June 2026.

Round-trip from

£612

One-way from

£351

Popular in

July

Cheapest in

May

Average price

£1,053
China Eastern
  • China Eastern
  • 31/8-13/9
  • 2 total stops
  • 70h 40m total
  • Ireland to Sydney
Search Deals
China Eastern
  • China Eastern
  • 9/9
  • 3 total stops
  • 60h 05m total
  • Ireland to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 20 June 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 8/9

21:45-06:10

1 stop23h 25m

Sydney Kingsford Smith

Wed 14/10

15:50-13:30

1 stop31h 40m

£947
Fastest return journey

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sun 19/7

08:15-20:55

2 stops27h 40m

Sydney Kingsford Smith

Sun 26/7

14:50-06:45

1 stop24h 55m

£1,098

DublinSydney

DUB - SYD

DUBSYD

Dublin

Tue 30/6

08:15-20:25

2 stops27h 10m

Sydney Kingsford Smith

Tue 28/7

17:45-13:30

2 stops28h 45m

£1,101

DublinSydney

DUB - SYD

DUBSYD

Dublin

Mon 20/7

10:55-08:00

3 stops36h 05m

Sydney Kingsford Smith

Sun 26/7

20:30-08:20

2 stops44h 50m

£1,113

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sat 25/7

17:10-09:45

2 stops31h 35m

Sydney Kingsford Smith

Fri 31/7

07:25-09:35

3 stops35h 10m

£1,346

DublinSydney

DUB - SYD

DUBSYD

Dublin

Sat 25/7

21:45-17:10

1 stop34h 25m

Sydney Kingsford Smith

Fri 31/7

14:50-06:45

1 stop24h 55m

£1,352

DublinSydney

DUB - SYD

DUBSYD

Dublin

Wed 16/9

10:55-09:00

1 stop37h 05m

Sydney Kingsford Smith

Sun 25/10

12:00-06:15

1 stop29h 15m

£1,420

DublinSydney

DUB - SYD

DUBSYD

Dublin

Wed 9/9

17:20-06:30

3 stops28h 10m

Sydney Kingsford Smith

Wed 14/10

15:45-08:15

2 stops26h 30m

£2,470

DublinSydney

DUB - SYD

DUBSYD

Dublin

Tue 25/8

17:20-06:20

2 stops28h 00m

Sydney Kingsford Smith

Sun 4/10

12:40-10:25

3 stops31h 45m

£2,515

DublinSydney

DUB - SYD

DUBSYD

Dublin

Tue 18/8

17:20-06:30

3 stops28h 10m

Sydney Kingsford Smith

Thu 17/9

11:00-08:15

2 stops30h 15m

£2,746

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 15 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

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 £382). Flying from Ireland to Sydney in July is currently the most expensive (average of £907). 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.

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.

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 20 June 2026.
See what other customers who have flown with Emirates,Turkish Airlines, andQatar Airways 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
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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
3,591 reviews
Emirates
8.1
Very Good
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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
4,409 reviews
Emirates
8.1
Very Good
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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
7.3
Good
3,729 reviews
Emirates
8.1
Very Good
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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
1,454 reviews
Emirates
8.1
Very Good
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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
8,055 reviews
Emirates
8.1
Very Good
3,591 reviews
Check prices

Boarding

8.1

Food

7.9

Overall

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.4

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 £947, Qatar Airways can have you in Sydney from Ireland in 23h 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 £376. Emirates flights start at £508 while deals on Qantas Airways start at £513 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 £382). Flying from Ireland to Sydney in July is currently the most expensive (average of £907). 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

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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 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£673Average£926FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£692Average£920FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£707Average£759FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Etihad AirwaysCheapest£804Average£956FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest£833Average£987FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest£875Average£1,101FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Qantas AirwaysCheapest£900Average£1,229FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
EmiratesCheapest£962Average£1,336FlexibilityNo cancel feeOn-time75%
Search Emirates flights
United AirlinesCheapest£1,055Average£1,266FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£1,072Average£1,351FlexibilityNo cancel feeOn-time77%
Search Air France 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!

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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.

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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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