Cheap flights from Ireland to Sydney from £410
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Sydney departing on 15/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ireland to Sydney
Recent return flight deals from Ireland to Sydney
Recent one-way flight deals from Ireland to Sydney
Recent last minute flight deals from Ireland to Sydney
Lufthansa flights from Ireland to Sydney
Our best Lufthansa deals on Ireland to Sydney flight tickets
Etihad Airways flights from Ireland to Sydney
Our best Etihad Airways deals on Ireland to Sydney flight tickets
See travel insights to Sydney from
How to get the cheapest flight ticket from Ireland to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Sydney?
In general, March is the cheapest month to fly from Ireland to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £941. If you don’t want to visit Sydney in March, then you should wait until May to fly from Ireland, when ticket prices are also cheap, with an average price of £963.
What is the cheapest day to depart on your flight to Sydney?
The cheapest day to depart on your flight to Sydney is on a Wednesday when prices can be found for as low as £1,132. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,254.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Ireland to Sydney in the afternoon for as low as £1,050. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,474 per ticket.
How far in advance should I book a flight to Sydney?
You are more likely to see cheaper flights to Sydney from Ireland when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £1,156 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Ireland for as low as £1,011 on momondo.
What is the cheapest airline that flies from Ireland to Sydney Kingsford Smith?
Lufthansa, SWISS, and Turkish Airlines are the most popular carriers operating from Ireland to Sydney Kingsford Smith
Which airlines fly to Sydney?
British Airways, Qatar Airways and Etihad Airways are the top three most popular airlines that fly to Sydney from Ireland according to our data. British Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 12 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.
Cheap Ireland to Sydney flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Sydney
When did momondo last update prices for flights from Ireland to Sydney Kingsford Smith Airport?
Prices for flights from Ireland to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Ireland to Sydney Kingsford Smith Airport?
The number of operators available for flights from Ireland to Sydney Kingsford Smith Airport is 12 as of June 2025.
How old do you have to be to fly from Ireland to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Ireland to Sydney
Compare and see reviews for airlines that fly from Ireland to Sydney with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £620 | Free Cancellation | Rating 7.5 1,624 reviews | |||
| PriceFrom £667 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom £669 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom £789 | Free Cancellation | Rating 7.3 3,849 reviews | |||
| PriceFrom £818 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom £847 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £919 | Free Cancellation | Rating 7.4 3,584 reviews | |||
| PriceFrom £923 | Free Cancellation | Rating 7.4 1,211 reviews | |||
| PriceFrom £956 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £962 | Free Cancellation | Rating 7.4 8,790 reviews |
Travelling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to Sydney?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Sydney . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ireland to Sydney with flexible booking policies on momondo?
Yes. All flights to Sydney from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ireland to Sydney?
momondo helps you find the best flight between Ireland and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ireland to Sydney right now. Can momondo alert me if prices change?
Price alerts on flights to Sydney from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.