$626 Find Cheap Flights from Ireland to Sydney – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Ireland to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Sydney

Sun, 6 Sep - Mon, 21 Sep
Etihad Airways Logo
20:35 - 06:10DUB  Dublin-SYD Sydney Kingsford Smith
24h 35m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
20:50 - 07:15SYD  Sydney Kingsford Smith-DUB Dublin
43h 25m1 stop Abu Dhabi Zayed Intl
$1,457Etihad Airways
Wed, 14 Oct - Thu, 29 Oct
Multiple Airlines Logo
10:55 - 09:00DUB  Dublin-SYD Sydney Kingsford Smith
60h 05m3 stops Shanghai Pu Dong Beijing Capital Wuhan
Multiple Airlines Logo
21:30 - 21:30SYD  Sydney Kingsford Smith-DUB Dublin
35h 00m2 stops Abu Dhabi Zayed Intl London Heathrow
$1,467Multiple Airlines
Mon, 7 Sep - Mon, 21 Sep
China Eastern Logo
10:55 - 12:35DUB  Dublin-SYD Sydney Kingsford Smith
40h 40m1 stop Shanghai Pu Dong
China Eastern Logo
11:00 - 08:20SYD  Sydney Kingsford Smith-DUB Dublin
54h 20m2 stops Shanghai Pu Dong Amsterdam Schiphol
$1,467China Eastern
Wed, 30 Dec - Sun, 31 Jan
China Eastern Logo
09:00 - 07:20DUB  Dublin-SYD Sydney Kingsford Smith
35h 20m1 stop Shanghai Pu Dong
China Eastern Logo
21:30 - 08:05SYD  Sydney Kingsford Smith-DUB Dublin
45h 35m2 stops Shanghai Pu Dong Amsterdam Schiphol
$1,469China Eastern
Sun, 6 Sep - Mon, 21 Sep
Etihad Airways Logo
09:00 - 06:10DUB  Dublin-SYD Sydney Kingsford Smith
36h 10m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
20:50 - 07:15SYD  Sydney Kingsford Smith-DUB Dublin
43h 25m1 stop Abu Dhabi Zayed Intl
$1,528Etihad Airways
Sun, 13 Sep - Tue, 29 Sep
Etihad Airways Logo
09:00 - 06:10DUB  Dublin-SYD Sydney Kingsford Smith
36h 10m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
20:50 - 07:15SYD  Sydney Kingsford Smith-DUB Dublin
43h 25m1 stop Abu Dhabi Zayed Intl
$1,529Etihad Airways
Tue, 3 Nov - Wed, 11 Nov
Qatar Airways Logo
14:05 - 06:50DUB  Dublin-SYD Sydney Kingsford Smith
29h 45m1 stop Doha Hamad Intl
Qatar Airways Logo
15:50 - 12:35SYD  Sydney Kingsford Smith-DUB Dublin
31h 45m1 stop Doha Hamad Intl
$1,724Qatar Airways
Tue, 3 Nov - Mon, 9 Nov
Qatar Airways Logo
21:20 - 06:50DUB  Dublin-SYD Sydney Kingsford Smith
22h 30m1 stop Doha Hamad Intl
Qatar Airways Logo
15:50 - 06:00SYD  Sydney Kingsford Smith-DUB Dublin
25h 10m1 stop Doha Hamad Intl
$1,724Qatar Airways
Sun, 20 Sep - Wed, 7 Oct
Emirates Logo
14:20 - 06:25DUB  Dublin-SYD Sydney Kingsford Smith
31h 05m2 stops Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
21:45 - 12:20SYD  Sydney Kingsford Smith-DUB Dublin
24h 35m1 stop Dubai Intl
$2,256Emirates
Thu, 27 Aug - Tue, 15 Sep
Emirates Logo
22:00 - 06:05DUB  Dublin-SYD Sydney Kingsford Smith
23h 05m1 stop Dubai Intl
Emirates Logo
20:10 - 12:20SYD  Sydney Kingsford Smith-DUB Dublin
25h 10m1 stop Dubai Intl
$2,262Emirates
Booking Insights

KAYAK's insights & trends for flights to Sydney

Get data-powered insights and trends into flights to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Sydney is May, where tickets cost $1,745 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Ireland is $2,728 and $2,639 respectively. For one-way flights, the best month to travel is February with an average price of $966.

How far in advance should I book a flight to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 4 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low season

June

Cheapest flight

$626
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Dublin to Sydney

FAQs - booking Sydney flights

  • How far is Sydney Kingsford Smith Airport from central Sydney?

    Sydney Kingsford Smith Airport is 7 km from the centre of Sydney.

  • What is the name of Sydney’s airport?

    All flights to Sydney land at Sydney Kingsford Smith Airport. The airport code is SYD,and it can also be referred to as Kingsford Smith or Sydney.

  • How does KAYAK find such low prices on flights to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Sydney are there each week?

    Each week there are around 7,676 direct flights from within Ireland to Sydney. The most common day for departures is Friday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Sydney

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sydney flight deals.

Reviews of the top 3 airlines flying from Ireland to Sydney

 
See real verified KAYAK customer reviews for airlines flying to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Sydney. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
EmiratesOverall score based on 3644 reviews
8.2Entertainment
7.9Food
8.4Crew
8.1Boarding
8.0Comfort
Airline reviews

The crew were absolutely fantastic. They actively asked if passengers wanted refills and if they were comfortable. I was extremely impressed.

10.0 ExcellentJames, Jan 2026
Read more Emirates reviews

The crew were absolutely fantastic. They actively asked if passengers wanted refills and if they were comfortable. I was extremely impressed.

Emirates A380s are always wonderful to fly on. Their crews, food and service are always excellent. They are typically on time and the only thing I would change (maybe newer or upgraded aircraft have this) is bluetooth so I can pair my noise cancelling headphones without a cable.

Wonderful Premium Economy experience. Felt as good as Business Class for food and entertainment. Comfortable sleeping too

No kids provided. Instead we were told to have contacted the airline that we have kids and require kids meals. We were not the only ones who inquired about kids meals. It’s odd. Emirates and other airlines give kids meals as standard and before the adult food comes out. The rice in our meals was gluggy and under cooked. The chicken was also raw. Sadly not the best experience with Finn Air. The hostesses tried to compensate with the snacks and drinks but missed the mark by a long way. Especially when paying Emirates/Qantas prices

Can’t complain Only downside was the Kiosk passport check and customs clearance at Melbourne. When will they improve that service🤔

Vegetarian food was unpalatable! Definitely need to look into this. The crew were prompt and helpful and the flight as one would want was uneventful. It was a comfortable flight, with new aircraft more legroom and seating space. Would recommend travel with Emirates to others as well.

Always my favourite airline. On time, lovely staff, clean comfortable seats. Well done

Different rules going from Dubai to Ahmedabad vs going from Ahmedabad to Dubai Horrible, only 1 baggage was allowed to carry on and no personal bag, i had to put personal bag inside carry on

I enjoyed the live television programming for entertainment, and honestly everything was acceptable. It’s just that I choose emirates, because they have always been so much better in so many ways – food choices, service, accessibility, friendliness of the staff. None of those things were poor, but they have definitely slid from their position of excellence. One example would be that after the dinner meal was served, the flight attendants huddled in the back galley with the curtains closed (by the way, that’s where snacks and drinks are), and you have to interrupt them to go back there to either ask for something or to get a snack. While they do not respond in an unfriendly way, you are led to believe that you are interrupting them by coming to get a snack or making a request. Even something like, “ Yes, how many I help you?” would be a great improvement.

Premium economy on Emirate A380 is simply the best non-business class product. In fact its probably better than many business class if the seat isnt lying flat. The food and service is close to perfect!

checkin and boarding were good. Lounge was pathetic. All empty seats were having reserved tag, was very warm inside the lounge so basically we didnt utilise. The flight was A320, we blocked row 1 in economy assuming leg space will be sufficient. But it was OK, nothing great compared tot he first row of Air Arabia which we took for our trip. The food was horrible, i had the beed fwith mash potatoes. No salt, no spices nothing.

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

The flight was delayed and one member of the crew was a bit rude. But apart from that all good.

I was unable to pre purchase sear upgrades or internet. Their online site is not user friendly and poor. I felt singled out in customs. Seats are very small even for a small person.

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Excellent will be flying again in May with Qatar. to Botswana.

Boarding delayed, no communication. I left the lounge, and heard a final call, boarding started after a 30 minutes.

Very tight seating. Crew seemed too dis interested and too slow to remove main meal trays.

The first and longest leg, Washington to Doha, was in a 777 that was very loud. This was an older aircraft. The second leg, Doha to Delhi, was in a much newer aircraft, an A350 and was very substantially quieter. The service was good on both, though as always, the crew leaves you trapped with your meal tray for a really long time. Additionally, the flight crew seemed inordinately afraid of turbulence, keeping the seat belt sign on for long stretches when there was barely noticeable turbulence.

Boarding staff at lahore airport corporate well. Thanks to that guy.

Seats were very comfortable and the staff too was very friendly.

One of your male flight attendant was pushy and a bit of a martinette. Completely unnecessary.

It was worst flight ever of 26h. Poor service and seating. Flight from Abu Dhabi to Islamabad service and seating was worst ever. No tv extra.

Boarding was efficient, had to check in cabin luggage. Seats were narrow, food was more in quantity, received cabin luggage on the luggage belt which was fine.

Crew were very polite and quicker in service. Excellent cooling, comfortable seats and tasty food served

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

My wife and I were upgraded to Business Class on our Dublin-Abu-Dhabi flight on the 22nd of January. Being served by "Mariyan" (not too sure about her name, she's from Tunisia) was the real highlight of our flight, she deserves to be working with etihad. We are looking forward to the next upgrade as we are flying back to Dublin on February 01, 2024. If I am not mistaken we have just reached GOLD status as Etihad Guests.

I travelled from Adu Dhabi to Melb; service was minimal at best, when I asked for a bottle of water but no meal I was told it was not available- it seemed a cup would do. The staff were un helpful & dismissive. We had a family near us who I never saw obtain any assistance from crew- they were simply avoided! Meal was simple and adequate no hot drinks were on offer until close to arriving, with a pseudo breakfast. Seats were tight despite obtaining extra leg room. I will not be flying with Etihad again and will not recommend them to family & friends.

Transit time could be 15 min longer atleast. It was right on the dot to boarding time. Giving minimal time to do shopping

Travelling to a place near Sydney?

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Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney