£357 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 22/3. 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

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

Mon, 9 Feb - Tue, 24 Feb
Multiple Airlines Logo
19:45 - 06:55DUB-SYD
48h 10m2 stops
Multiple Airlines Logo
16:20 - 09:10SYD-DUB
27h 50m2 stops
£883Multiple Airlines
Find Deal
Tue, 3 Mar - Tue, 24 Mar
Multiple Airlines Logo
16:30 - 06:35DUB-SYD
27h 05m2 stops
Multiple Airlines Logo
12:45 - 09:40SYD-DUB
31h 55m2 stops
£884Multiple Airlines
Find Deal
Sun, 8 Feb - Thu, 26 Feb
Turkish Airlines Logo
06:25 - 19:20DUB-SYD
25h 55m2 stops
Turkish Airlines Logo
12:00 - 15:30SYD-DUB
38h 30m2 stops
£887Turkish Airlines
Find Deal
Tue, 3 Mar - Tue, 24 Mar
Qatar Airways Logo
14:05 - 06:50DUB-SYD
29h 45m1 stop
Qatar Airways Logo
15:50 - 12:35SYD-DUB
31h 45m1 stop
£905Qatar Airways
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Tue, 2 Dec - Tue, 20 Jan
Qatar Airways Logo
21:20 - 06:50DUB-SYD
22h 30m1 stop
Qatar Airways Logo
15:50 - 06:00SYD-DUB
25h 10m1 stop
£906Qatar Airways
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Fri, 28 Nov - Sat, 13 Dec
Etihad Airways Logo
08:10 - 06:35DUB-SYD
35h 25m1 stop
Etihad Airways Logo
21:30 - 06:25SYD-DUB
43h 55m1 stop
£930Etihad Airways
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Fri, 28 Nov - Sat, 13 Dec
Etihad Airways Logo
08:10 - 17:55DUB-SYD
22h 45m1 stop
Etihad Airways Logo
21:30 - 06:25SYD-DUB
43h 55m1 stop
£933Etihad Airways
Find Deal
Sat, 7 Feb - Tue, 24 Feb
British Airways Logo
13:10 - 06:55DUB-SYD
30h 45m2 stops
British Airways Logo
16:20 - 09:35SYD-DUB
28h 15m2 stops
£965British Airways
Find Deal
Sun, 9 Nov - Mon, 24 Nov
British Airways Logo
20:40 - 06:55DUB-SYD
47h 15m2 stops
British Airways Logo
16:20 - 15:40SYD-DUB
34h 20m2 stops
£990British Airways
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Tue, 3 Feb - Wed, 25 Feb
Emirates Logo
20:50 - 22:30DUB-SYD
38h 40m1 stop
Emirates Logo
06:00 - 18:55SYD-DUB
23h 55m1 stop
£1,018Emirates
Find Deal

Everything you should know

When to travel
March
Cheapest • 17% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£883
Overall average: £1,021
Multiple Airlines
Mon 9/2Tue 24/2
DUB - SYD • 2 stops
Cheapest one-way flight
£357
Typical prices: £514-£713
Multiple Airlines
Sun 22/3
DUB - SYD • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
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 £955 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 £1,563 and £1,428 respectively. For return trips, the best month to travel is March with an average price of £955.

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 68 days before departure.

Good to know - Cheap tickets from Ireland to Sydney

Low seasonMay
Cheapest flight£357
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (29% 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.

  • What is the cheapest day to fly to Sydney?

    Based on KAYAK data, the cheapest day to fly to Sydney is Wednesday where tickets can be as cheap as £1,168. On the other hand, the most expensive day to fly is Friday, where prices are £1,293 on average.

  • 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.

  • What is the cheapest time of day to fly to Sydney?

    The cheapest time of day to fly to Sydney is generally in the evening, when flights cost £1,083 on average. The most expensive time of day to fly to Sydney is generally at night, which is peak travel time and where the average cost of a ticket is £1,520.

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 3394 reviews
8.0Comfort
8.1Boarding
7.9Food
8.2Entertainment
8.3Crew
Airline reviews

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

10.0 ExcellentRoss, Oct 2025DXB - MEL
Read more Emirates reviews

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

The 2 sockets near me didjt work i had my phone by end of the flight on low bat and had issues to book uber thereafter Electrical sockets should work if emirates does not allow batteries Baggage claim in zurich took very long

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

This was my first time flying with Emirates. Overall, the experience was very good. I thought the seats in economy would have been a bit more comfortable, but, they seem to be on par with other airlines. The food was excellent and very satisfying. If you can afford it, I would definitely suggest upgrading to at lest premium economy seats for long haul flights.

I had a good experience flying with Emirates. All of the flights were on time staff was very professional and kind. So I had a positive experience..

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

Fantastic service the managed to locate my checked bag on the plans as re-tagged it for my final destination.

Delayed and missed connecting flight. But Emirates took care until next day flight. Thank you

Premium Economy is not worth the extra money you pay. You are neither economy nor business. The seat doesn’t recline enough to relax your legs. Maneuvering while seated is cumbersome. Don’t recommend Premium Economy at all.

Everything was great but the food portions and quality was awful

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

Paid $10 for wifi for full flight duration and the wifi wasn’t available after initial 2 hours

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 would love the entertainment center to be updated with more content. The flight to Doha had more options than the one to Miami

The flight was operated by IndiGo and not Qatar, which is a budget airline from India. Nevertheless, the flight was uneventful.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

The seats were uncomfortable. The service was poor. We bought internet for my family and myself and it didn’t work. The charger for our phone didn’t work. The service seemed like they were tired and exhausted and seemed a bit upset. It was not a good flight. Our flight from miami to Qatar was great but from Qatar to Tokyo was simply awful

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.

The space was tight, hardly any leg room and the crew surprisingly were busy and did not take the time to attend to passengers, felt rushed. There was a delay for check in since the systems were down the airport staffs were accommodating

Will never book any flight from Kayak and will never travel ithad airline

The WiFi was not compatible on both my phones (Vivo Y30 5g and Samsung Galaxy A32) with up-to-date android software.

Did not provided with option for class upgrade. Staff at gate was not able and willing to accommodate with class upgrade, eather with plenty empty spots in business and first class.

Stewardess was attentive and was actively roamin to check the passengers on the biz class

Boarding was excellent except they did last call 30 minutes earlier .

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.

The check-in has been the very best so far I didn't get to use my priority access which made me feel like a paid a higher price with no benefit for that I loved the food Very tasty and hot The staff friendliness, empathy could be better as it was not linear amongst the whole crew Otherwise, no complaints. I'd still fly again via Etihad Great prices despite the long 6h of waiting time

Surprised at the lower quality of seats on the Boeing 777 in Business Class. Seats are tight and the whole Business class section is jam packed with seats. It doesn’t feel like Business Class at all. Also the way the tray tables are placed with a huge bulky solid metal hinge at knee level makes it so uncomfortable and always anxious that one will accidentally bang their knee on it. Quality of amenities has also declined. Over priced tickets with diminished quality of the entire experience.

Etihad seems to have a very strict luggage enforcement. I am a very light passenger compared to other passengers which are mainly heavier. I do not understood why airlines enforce the weight restriction so strictly. I was overweight luggage of 1.5kg, but am probably 10+kg lighter than the average passenger. Other airlines are far more accommodating. Poor customer service as far as I am concerned. If weight is such an important issue to an airline they should charge passengers by total amount of body weight plus luggage. To me just ridiculous.

Horrible. After paying for my seats, I was cramped, had no overhead bin space, freezing as the flight had no temperature controls, the food was awful and served cold, when asked for snacks was told to wait and then never received any. I booked this flight as a partner through American Airlines but will avoid in the future.

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

It was great! Great value for the price I paid. Great crew and great food in business class

The only hiccup was a change of plane and the resulting delayed departure, otherwise everything was more than OK.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

The prices and many to choose from: Very unfriendly unprofessional and difficult staff and lacked English skills. Had the pleasure to go to Istanbul in 2022 but went on Jordan Airlines and found Turkey a wonderful place with kind people. The experience as a first time flyer on Turkish Airlines was so disappointing that received not to go into Turkey was so upset about this cruel treatment

It was ok. Not the experience I expected from Turkish airlines

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

The best airline food being served for business travellers. Excellent food.

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

With a 4 hour delay its was a very basic flight which was just bearable. We were offered food vouchers for the delay and then they didnt work, so that was annoying. Also poor communication about the delay which got pushed out 3 times.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

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.

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

First time on BA but will fly with them from now on! Everything about the flight was superb!!!

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.

Outdated from start to finish. Good was inedible, choice was very poor. They don’t seem to care

They damaged my check in bag and when I filled complaint they gave some minimal amount which is not even sufficient to buy new bag. Vey unhappy with this experience.

They removed our booking without telling us. Cost us thousands to book last minute

The wheelchair service was good. Staff and crew were helpful/supportive. The business of 'being overbooked' ....."you may not be able to travel tonight/we may have to put you in Economy'" was rather unsettling. Even Economy Plus in a MIDDLE seat felt cramped. The seating and experience felt very basic even though I had struggled to pay for extra - Economy Plus.

Good crew and boarding process. Horrible food and one of the most uncomfortable aircraft seats I have ever sat in. The cabin temperature was warm which made it hard for my family to sleep.

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