£481 Find Cheap Flights from Ireland to Sydney

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 2/3. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney
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Everything you should know

Cheapest return fare
£850
Typical prices: £840-£1,154
Multiple Airlines
Thu 7/5Thu 21/5
DUB - SYD • 3 stops
Cheapest one-way flight
£481
Typical prices: £501-£698
Etihad Airways
Mon 2/3
DUB - SYD • 1 stop
When to travel
March
Cheapest • 15% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

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

Thu, 7 May - Thu, 21 May
Multiple Airlines Logo
06:20 - 06:05
DUB
-
SYD
38h 45m
3 stops
Multiple Airlines Logo
21:05 - 16:00
SYD
-
DUB
27h 55m
2 stops
£850Multiple Airlines
Thu, 23 Apr - Thu, 14 May
Multiple Airlines Logo
06:20 - 06:05
DUB
-
SYD
38h 45m
3 stops
Multiple Airlines Logo
21:05 - 09:35
SYD
-
DUB
45h 30m
2 stops
£853Multiple Airlines
Mon, 4 May - Tue, 2 Jun
Lufthansa Logo
17:35 - 06:10
DUB
-
SYD
27h 35m
2 stops
Lufthansa Logo
14:35 - 09:55
SYD
-
DUB
28h 20m
2 stops
£859Lufthansa
Sat, 2 May - Wed, 3 Jun
British Airways Logo
19:00 - 06:05
DUB
-
SYD
26h 05m
2 stops
British Airways Logo
14:05 - 12:05
SYD
-
DUB
31h 00m
2 stops
£860British Airways
Thu, 23 Apr - Thu, 14 May
Multiple Airlines Logo
06:20 - 06:05
DUB
-
SYD
38h 45m
3 stops
Multiple Airlines Logo
07:05 - 09:35
SYD
-
DUB
35h 30m
3 stops
£862Multiple Airlines
Wed, 8 Apr - Wed, 6 May
Multiple Airlines Logo
20:35 - 06:10
DUB
-
SYD
24h 35m
1 stop
Multiple Airlines Logo
20:35 - 07:15
SYD
-
DUB
43h 40m
2 stops
£866Multiple Airlines
Thu, 7 May - Thu, 21 May
Turkish Airlines Logo
06:20 - 19:10
DUB
-
SYD
27h 50m
2 stops
Turkish Airlines Logo
21:05 - 16:00
SYD
-
DUB
27h 55m
2 stops
£868Turkish Airlines
Tue, 3 Mar - Tue, 17 Mar
British Airways Logo
10:00 - 06:55
DUB
-
SYD
33h 55m
2 stops
British Airways Logo
16:20 - 09:10
SYD
-
DUB
27h 50m
2 stops
£871British Airways
Tue, 3 Mar - Tue, 24 Mar
British Airways Logo
15:30 - 06:55
DUB
-
SYD
28h 25m
2 stops
British Airways Logo
16:20 - 15:40
SYD
-
DUB
34h 20m
2 stops
£873British Airways
Tue, 3 Mar - Tue, 24 Mar
British Airways Logo
15:30 - 06:55
DUB
-
SYD
28h 25m
2 stops
British Airways Logo
16:20 - 09:10
SYD
-
DUB
27h 50m
2 stops
£874British Airways
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 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 March, where tickets cost £934 on average for one-way flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Ireland is £1,412 and £1,371 respectively. For return trips, the best month to travel is March with an average price of £934.

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 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 81 days before departure.

Good to know - Cheap tickets from Ireland to Sydney

Low seasonMay
Cheapest flight£481
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (38% more expensive on average)
Flight from Dublin to Sydney

FAQs - booking Sydney flights

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

    You’ll need to travel 5 miles to reach the Sydney city centre from Sydney Kingsford Smith Airport.

  • What is the name of Sydney’s airport?

    When flying to Sydney, you'll arrive at Sydney Kingsford Smith Airport (SYD). The airport is also known 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.

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 5 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 3488 reviews
7.9Food
8.1Boarding
8.2Entertainment
8.3Crew
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
WLG - SYD
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.

Mostly good and consistent of Emirates service. Christmas menu was great initiative and tasted good. Taking the bus from terminal to the plane spoilt the experience a little.

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

the seat is quite narrow compared to others. entertainment and food were very good

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

The staff on board were excellent. Kind, thoughtful, helpful - not just with me but with others around that I observed. Wonderful service.

Very pleasant.The crews are very helpful.Food are very good.

The best ever, friendly and attentive cabin crew, amazing captains who utilised their expertise for less turbulence, just overall amazing

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

All great, because I was given a seat with extra legroom on this part of my trip.

Very efficient and professional staff. Food was good and so was entertainment selection.

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 wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

The check-in and crew staff were wonderful. The food was reasonable. The online side Qatar was very poor. Seats were very tight and not very comfortable for a 14 hour flight!

It was ok, not much more can be said, as long as airlines/aircraft manufacturers insist on cramming in as many seats as possible....best of a bad situations, seats are simply too uncomfortable to sit in for more than a few hours. Lack of flexible headrests not a help on long overnight flights either.

They didn't board by zones and it was a free for all. The 16 hour flight was the most excruciating experience of my life and the seats were TINY... with no leg space and my feet were swollen immediately. The food was so bad it was inedible.

Dirty and smelly lavatory and toilets in Wamos Air operated flights

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

On this flight...fine. The one from India to Abu Dahbi, awful.

Kayak and Aran grant issuing business class tickets without lounge access and sometimes 1 or 2 connections in economy class. It’s very disappointing to find out that after buying the ticket. Never buy tickets on kayak and Aran grant again

There was not any issues with the Etihad Airways. Staff was excellent and I love the variety of movies and games that they provided.

It was an old plane with seats not comfortable and with little space for the legs. I must say that the previous flight I had was amazing on a very comfortable new plane

Very disappointing #1 - You have to pay extra to use the business lounge, or else you sit in the cold airport for 7 hours and fall sick #2 - Did an awful job with boarding, they turned on the "last call" notice on the monitor made the passengers come running to the gate, once the passengers came close the crew would tell them - hey we are not boarding yet, this included passengers with children also, this was happening all the time, it was pitiful to see #3 - Did not have the courtesy for the passengers in the business class, there is a reasons why people choose business class, because they need to get to work, that means sleep is very important for them, in the business class, the crew members would themselves cause so much noise by closing the door in a loud way, once the crew member does it then the other passengers are also doing it, #4 - the food did not smell good, #5 - The Abu Dhabi airport is small, so not a whole lot to do, especially when the layover is 7+ hours. #6 - Did not provide the slippers with pajamas, #7 - also the pajamas also I had to ask, only after asking it was provided. #8- Asked for an extra pillow because the pillow they provided was not tall enough, the crew member said there was no additional pillow and gave me something like a blanket, I tried my best to use that as a pillow, but my head kept on sliding and that messed up my sleep and did not get deep thorough sleep Overall the airlines did not have an understanding of how to care for the passengers, especially the business class ones. Overall it was a bad experience, I would much rather spend the money with Qatar airways, the experience with Qatar is so much better.

Wish the flight attendants were more attentive in serving food

My baggage was not boarded and is still missing. I was only carring one piece of luggage and that is misplaced now I am stuck at mumbai without luggage. I had an onward journey from here

I was charged $604 for a bag that weighed 17 kg. I was given three different prices until they landed on the most expensive one and didn't budge a penny. It's ironic and a bit enraging because the total cost of my ticket was $468. I've traveled the world and never experienced these kind of prices for only one piece of checked luggage.

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

Changed to older plane with old set-up in Business class.

Service was slow and checked bag was off last evening when flying business

Awful seating. Bad food. Staff only have one bottle of water and no cans.

We were charged for checking in our bags! One bag per person was supposed to have been included in the ticket price, and yet Turkish Airlines charged us nearly $200 per bag!

Second leg of Turkish Airline with Indigo is disaster for following reason. 1) You have to carry your cabin bags through ladder to boeing 777 because it was parked somewhere in parking lot and was not given a gate to board passengers and this seems to be people traveling to and fro from those flights and is not issue with flight itself. 2) I choose non vegetarian food on Turkish portal way ahead of checkin to entire trip, However the Indigo flight gave me random veg food saying they code veg food code from Turkish. 3) Indigo did not served any alcoholic beverages stating some weird reason which is non nonsensical. 4)Indigo have TV screens in front of you but it displays nothing except "Welcome Onboard" with annoying white black ground in dark flight. This is the most stupidest and annoying part because you are held hostage for 7 hours and only thing you could do is stare back at white screen which does not have entertainment package or even flight tracker. Such a shame.

nice and clean plane but the seats and the comfort was not what i expected. i expected more based on all the ads and reviews that i've read. I guess you get what you pay for in economy.

Overall it was good. Food was bad. I ordered gluten free vegetarian meal. But I got gluten free chicken for my long flight from Seattle to Istanbul. I don’t eat any kind of meat. Second meal I got eggplant with meat which I couldn’t eat. I don’t understand why we can’t get gluten free vegetarian meal for a 12 hour flight. I eat the bread and that was it.

Bad confort, bad seat take advantage of the political conflict to double the price

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

I have always been pleased with their service. Would not change a thing

Why don't they board from the back of the plane to the front. We have to move by all the people and their luggage to get to the seats.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

Flight was delayed for 2h. Announcements were poor and I was given 1 biscuit and a bottle of water as consolation. Not happy.

The overall seat and cushion needs to be updated. It was hard and no support. My butt was numb for most of the flight. The food was subpar at best being in premium economy cost. The flight attendants were excellent and attentive during the whole flight. Disappointed I had to select our seats 24 hours prior.

The booking agent, cheapflightsfares, messed up, and the information for the seats we paid extra for was not sent to American Airlines. We were separated on the return flight and sent to the lowest economy section. The flight attendant helped arrange seating at the back of the plane to allow my wife and me to sit together.

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