$712 Cheap Flights from Sydney (SYD) to Dublin (DUB)

View $712 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Dublin Airport (DUB)

Find available prices by choosing your travel dates.

Cheap Flights from Sydney to Dublin (SYD-DUB)

Prices were available within the past 7 days and start at $712 for one-way flights and $1,012 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Wed, Jun 11 - Mon, Jun 23
SYD
Sydney
DUB
Dublin
$1,012 Roundtrip, found 17 hours ago
$1,012
Roundtrip
found 17 hours ago
Select China Eastern Airlines flight, departing Wed, Jun 11 from Sydney to Dublin, returning Mon, Jun 23, priced at $1,012 found 17 hours ago
British Airways
Sat, May 17 - Sat, May 24
SYD
Sydney
DUB
Dublin
$1,025 Roundtrip, found 1 day ago
$1,025
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, May 17 from Sydney to Dublin, returning Sat, May 24, priced at $1,025 found 1 day ago
China Eastern Airlines
Mon, Jun 9 - Mon, Jun 23
SYD
Sydney
DUB
Dublin
$1,066 Roundtrip, found 17 hours ago
$1,066
Roundtrip
found 17 hours ago
Select China Eastern Airlines flight, departing Mon, Jun 9 from Sydney to Dublin, returning Mon, Jun 23, priced at $1,066 found 17 hours ago
British Airways
Wed, May 14 - Wed, May 28
SYD
Sydney
DUB
Dublin
$1,078 Roundtrip, found 17 hours ago
$1,078
Roundtrip
found 17 hours ago
Select British Airways flight, departing Wed, May 14 from Sydney to Dublin, returning Wed, May 28, priced at $1,078 found 17 hours ago
China Eastern Airlines
Wed, Jun 4 - Sun, Jun 15
SYD
Sydney
DUB
Dublin
$1,104 Roundtrip, found 17 hours ago
$1,104
Roundtrip
found 17 hours ago
Select China Eastern Airlines flight, departing Wed, Jun 4 from Sydney to Dublin, returning Sun, Jun 15, priced at $1,104 found 17 hours ago
Swiss International Air Lines
Mon, May 19 - Wed, Jun 4
SYD
Sydney
DUB
Dublin
$1,186 Roundtrip, found 17 hours ago
$1,186
Roundtrip
found 17 hours ago
Select Swiss International Air Lines flight, departing Mon, May 19 from Sydney to Dublin, returning Wed, Jun 4, priced at $1,186 found 17 hours ago
United
Wed, Apr 30 - Tue, May 6
SYD
Sydney
DUB
Dublin
$1,244 Roundtrip, found 2 days ago
$1,244
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 30 from Sydney to Dublin, returning Tue, May 6, priced at $1,244 found 2 days ago
Air Canada
Mon, Oct 20 - Tue, Nov 4
SYD
Sydney
DUB
Dublin
$1,307 Roundtrip, found 3 days ago
$1,307
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 20 from Sydney to Dublin, returning Tue, Nov 4, priced at $1,307 found 3 days ago
Turkish Airlines
Thu, Jun 5 - Fri, Jun 20
SYD
Sydney
DUB
Dublin
$1,330 Roundtrip, found 17 hours ago
$1,330
Roundtrip
found 17 hours ago
Select Turkish Airlines flight, departing Thu, Jun 5 from Sydney to Dublin, returning Fri, Jun 20, priced at $1,330 found 17 hours ago
Lufthansa
Tue, Mar 3 - Fri, Mar 20
SYD
Sydney
DUB
Dublin
$1,370 Roundtrip, found 1 hour ago
$1,370
Roundtrip
found 1 hour ago
Select Lufthansa flight, departing Tue, Mar 3 from Sydney to Dublin, returning Fri, Mar 20, priced at $1,370 found 1 hour ago
Flights from Sydney (SYD) to Dublin (DUB)
Origin airport
Kingsford Smith Intl.
Destination airport
Dublin
Airlines serving
Air Canada, Air France, American Airlines, British Airways, China Eastern Airlines, Emirates, Etihad Airways, Finnair, Japan Airlines, KLM, Qantas Airways, Qatar Airways, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$1,012
Distance
10694 mi

Sydney to Dublin Flights

The cheapest times to fly from Sydney to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sydney to Dublin are during the month of June. You can find some of the cheapest flights from Sydney to Dublin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Sydney to Dublin

Sunday is one of the best days to book for cheap flights from Sydney to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Sydney to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sydney to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $712 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sydney to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sydney to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB) cost?
Discover the latest flight deals from SYD to DUB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SYD to DUB?
The cheapest flights from SYD to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SYD to DUB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SYD to DUB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB)?
Direct flights from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel details and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SYD to DUB?
You’ll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB)?
To avoid potential delays on the Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB) last-minute?
Booking your plane ticket from SYD to DUB just before your trip is generally more expensive. However, if you’re flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a SYD to DUB flight and hotel package?
Securing a SYD to DUB flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Dublin Airport (DUB)?
In most cases, you can cancel or modify your SYD to DUB flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline’s fees and guidelines on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.