$77 Cheap Flights from Adelaide (ADL) to Sydney (SYD)

View $77 flight on Tue, Mar 17, 2026Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Sydney Airport (SYD)

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Cheap Flights from Adelaide to Sydney (ADL-SYD)

Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Jetstar
Sun, Aug 24 - Thu, Sep 4
ADL
Adelaide
SYD
Sydney
$154 Roundtrip, found 2 hours ago
$154
Roundtrip
found 2 hours ago
Select Jetstar flight, departing Sun, Aug 24 from Adelaide to Sydney, returning Thu, Sep 4, priced at $154 found 2 hours ago
Jetstar
Fri, Sep 5 - Sat, Sep 6
ADL
Adelaide
SYD
Sydney
$158 Roundtrip, found 14 hours ago
$158
Roundtrip
found 14 hours ago
Select Jetstar flight, departing Fri, Sep 5 from Adelaide to Sydney, returning Sat, Sep 6, priced at $158 found 14 hours ago
Jetstar
Sun, Aug 24 - Thu, Sep 4
ADL
Adelaide
SYD
Sydney
$169 Roundtrip, found 2 hours ago
$169
Roundtrip
found 2 hours ago
Select Jetstar flight, departing Sun, Aug 24 from Adelaide to Sydney, returning Thu, Sep 4, priced at $169 found 2 hours ago
Jetstar
Fri, Sep 5 - Sat, Sep 6
ADL
Adelaide
SYD
Sydney
$173 Roundtrip, found 14 hours ago
$173
Roundtrip
found 14 hours ago
Select Jetstar flight, departing Fri, Sep 5 from Adelaide to Sydney, returning Sat, Sep 6, priced at $173 found 14 hours ago
Jetstar
Sun, Aug 24 - Thu, Sep 4
ADL
Adelaide
SYD
Sydney
$175 Roundtrip, found 2 hours ago
$175
Roundtrip
found 2 hours ago
Select Jetstar flight, departing Sun, Aug 24 from Adelaide to Sydney, returning Thu, Sep 4, priced at $175 found 2 hours ago
Jetstar
Fri, Sep 5 - Sat, Sep 6
ADL
Adelaide
SYD
Sydney
$179 Roundtrip, found 14 hours ago
$179
Roundtrip
found 14 hours ago
Select Jetstar flight, departing Fri, Sep 5 from Adelaide to Sydney, returning Sat, Sep 6, priced at $179 found 14 hours ago
Virgin Australia
Sat, Nov 29 - Mon, Dec 1
ADL
Adelaide
SYD
Sydney
$181 Roundtrip, found 6 days ago
$181
Roundtrip
found 6 days ago
Select Virgin Australia flight, departing Sat, Nov 29 from Adelaide to Sydney, returning Mon, Dec 1, priced at $181 found 6 days ago
Jetstar
Thu, Aug 14 - Mon, Aug 18
ADL
Adelaide
SYD
Sydney
$182 Roundtrip, found 6 days ago
$182
Roundtrip
found 6 days ago
Select Jetstar flight, departing Thu, Aug 14 from Adelaide to Sydney, returning Mon, Aug 18, priced at $182 found 6 days ago
Jetstar
Sun, Aug 24 - Thu, Sep 4
ADL
Adelaide
SYD
Sydney
$185 Roundtrip, found 2 hours ago
$185
Roundtrip
found 2 hours ago
Select Jetstar flight, departing Sun, Aug 24 from Adelaide to Sydney, returning Thu, Sep 4, priced at $185 found 2 hours ago
Qantas Airways
Sun, Aug 24 - Thu, Sep 4
ADL
Adelaide
SYD
Sydney
$341 Roundtrip, found 2 hours ago
$341
Roundtrip
found 2 hours ago
Select Qantas Airways flight, departing Sun, Aug 24 from Adelaide to Sydney, returning Thu, Sep 4, priced at $341 found 2 hours ago

Find the cheapest month to fly from Adelaide (ADL) to Sydney (SYD)

August is typically the cheapest month to fly

From $135 - $182 per traveler.

Graph displaying average flight prices per month

Flights from Adelaide (ADL) to Sydney (SYD)
Origin airport
Adelaide
Destination airport
Kingsford Smith Intl.
Airlines serving
Jetstar, Qantas Airways, Virgin Australia
Roundtrip price
$154
Distance
722 mi
Average flight time
2 hours 20 mins

Adelaide to Sydney Flights

The cheapest times to fly from Adelaide to Sydney

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 Adelaide to Sydney are during the month of August. You can find some of the cheapest flights from Adelaide to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Adelaide to Sydney

Sunday is one of the best days to book for cheap flights from Adelaide to Sydney: 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 Adelaide to Sydney

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 Adelaide to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $77 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 Adelaide to Sydney 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 Adelaide to Sydney 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 Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD) cost?
You can land cheap return flights from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD) starting from $153. Grab your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Jetstar flight leaving ADL on July 24 2025 and touching down at SYD. The price was last updated on July 3 2025 and has not changed since.
What is the cheapest month to fly from ADL to SYD?
The cheapest flights from ADL to SYD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
Take your pick of 3 airlines that operate direct flights from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD). Including:

  • Qantas
  • Virgin Australia
  • Jetstar

What is the cheapest airline that flies from ADL to SYD?
Right now, the cheapest airline offering one-way flights from ADL to SYD is Jetstar. You can jet off on this route from $77. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ADL on September 23 2025. Prices were last updated on July 3 2025 and have not changed since.
How many flights per day from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
With, on average, 17 direct flights departing from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD) each day, you'll be up in the air in no time.
What are the most popular departure times for flights from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
Flights between ADL and SYD are their busiest at 6 AM. If you'd like a quieter experience and possibly cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from ADL to SYD?
Friday has the most flights from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
Take the earliest flight at around 6:00AM UTC+10, heading out of Adelaide Airport (ADL). You'll be flying for approximately 1h 55m, arriving at Kingsford Smith Intl. Airport (SYD) at approximately 8:25AM UTC+11.
How long does it take to fly from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
Typically, it takes 1 hour and 54 minutes to travel the 720 mi from ADL to SYD.
What airline has the least delays from ADL to SYD?
Bangkok Airways has the strongest track record for on-time direct flights from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD), with an on-time score of 88%. Use the Expedia App to see your flight schedule before you leave and get immediate updates about any trip changes.
What is the best time to fly from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
To avoid possible delays on the Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD) route, fly before 3 PM. Later departures have a 22% higher chance of being 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.
What airports do you fly into for Sydney from Adelaide Airport (ADL)?
Kingsford Smith Intl. Airport (SYD) is the only airport in Sydney with direct flights from Adelaide Airport (ADL). Consider the available options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD) last-minute?
Last-minute fares from ADL to SYD are typically more expensive. To lock in the lowest prices, start looking for flights as early as possible. That being said, if you can play around with your travel dates, you may score a cheap fare right before you leave.
Is it cheaper to book an ADL to SYD flight and hotel package?
Opting for an ADL to SYD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Adelaide Airport (ADL) to Kingsford Smith Intl. Airport (SYD)?
Typically, you're able to cancel or reschedule your ADL to SYD flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.