$644 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 9/9. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney, as well as popular online travel agencies
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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

Sun, 30 Aug - Sun, 13 Sep
China Eastern Logo
16:20 - 09:00
DUB
-
SYD
31h 40m
2 stops
China Eastern Logo
11:00 - 08:00
SYD
-
DUB
30h 00m
1 stop
$1,692China Eastern
Tue, 6 Oct - Sun, 11 Oct
Multiple Airlines Logo
06:00 - 20:05
DUB
-
SYD
28h 05m
2 stops
Multiple Airlines Logo
16:40 - 19:05
SYD
-
DUB
36h 25m
1 stop
$1,693Multiple Airlines
Mon, 27 Jul - Wed, 2 Sep
China Eastern Logo
10:55 - 08:00
DUB
-
SYD
36h 05m
3 stops
China Eastern Logo
20:30 - 08:00
SYD
-
DUB
44h 30m
1 stop
$1,696China Eastern
Mon, 19 Oct - Sun, 8 Nov
China Eastern Logo
10:55 - 09:00
DUB
-
SYD
60h 05m
3 stops
China Eastern Logo
12:00 - 06:15
SYD
-
DUB
29h 15m
1 stop
$1,705China Eastern
Wed, 7 Oct - Wed, 25 Nov
Multiple Airlines Logo
10:40 - 07:05
DUB
-
SYD
58h 25m
3 stops
Multiple Airlines Logo
22:15 - 09:35
SYD
-
DUB
46h 20m
2 stops
$1,706Multiple Airlines
Sat, 29 Aug - Thu, 17 Sep
Turkish Airlines Logo
05:35 - 09:45
DUB
-
SYD
43h 10m
2 stops
Turkish Airlines Logo
21:05 - 16:00
SYD
-
DUB
27h 55m
2 stops
$1,718Turkish Airlines
Wed, 4 Nov - Wed, 11 Nov
British Airways Logo
11:55 - 07:55
ORK
-
SYD
33h 00m
2 stops
British Airways Logo
11:15 - 11:10
SYD
-
ORK
34h 55m
2 stops
$1,903British Airways
Wed, 4 Nov - Sun, 8 Nov
British Airways Logo
20:05 - 07:55
SNN
-
SYD
48h 50m
2 stops
British Airways Logo
08:45 - 11:30
SYD
-
SNN
37h 45m
2 stops
$1,906British Airways
Wed, 4 Nov - Sun, 8 Nov
Air Canada Logo
07:50 - 09:35
SNN
-
SYD
38h 45m
2 stops
Air Canada Logo
11:20 - 16:45
SYD
-
SNN
40h 25m
3 stops
$2,351Air Canada
Wed, 4 Nov - Sun, 8 Nov
Air Canada Logo
07:50 - 09:35
SNN
-
SYD
38h 45m
3 stops
Air Canada Logo
11:20 - 16:45
SYD
-
SNN
40h 25m
3 stops
$2,488Air Canada
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 August, where tickets cost $732 on average for return flights. On the other hand, the most expensive months are January and June, where the average cost of tickets from Ireland is $1,599 and $1,374 respectively. For one-way flights, the best month to travel is December with an average price of $628.

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 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$644
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (22% more expensive 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 8,179 direct flights from within Ireland to Sydney. The most common day for departures is Friday, with 16% 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 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.
7.3
Qatar AirwaysOverall score based on 3736 reviews
7.3Entertainment
7.9Crew
7.3Comfort
7.3Food
7.5Boarding
Airline reviews

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.

8.0 ExcellentAjesh, June 2026
TBS - DOH
Read more Qatar Airways reviews

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.

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

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

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?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Leura
Katoomba
Terrigal
Penrith
Manly
Cronulla
Coogee
Randwick
Bondi Beach
Lithgow
Newport
Swansea
Charlestown
Brooklyn

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney