$74 Cheap Flights from Sydney (SYD) to Adelaide (ADL)

View $74 flight on Thu, Jul 3, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Sydney to Adelaide (SYD-ADL)

Prices were available within the past 7 days and start at $74 for one-way flights and $147 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Jetstar
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Jetstar flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $147 just found
Jetstar
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$151 Roundtrip, just found
$151
Roundtrip
just found
Select Jetstar flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $151 just found
Jetstar
Fri, May 16 - Thu, May 22
SYD
Sydney
ADL
Adelaide
$155 Roundtrip, found 2 days ago
$155
Roundtrip
found 2 days ago
Select Jetstar flight, departing Fri, May 16 from Sydney to Adelaide, returning Thu, May 22, priced at $155 found 2 days ago
Jetstar
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$161 Roundtrip, just found
$161
Roundtrip
just found
Select Jetstar flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $161 just found
Jetstar
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$165 Roundtrip, just found
$165
Roundtrip
just found
Select Jetstar flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $165 just found
Jetstar
Fri, May 30 - Sat, May 31
SYD
Sydney
ADL
Adelaide
$167 Roundtrip, found 3 hours ago
$167
Roundtrip
found 3 hours ago
Select Jetstar flight, departing Fri, May 30 from Sydney to Adelaide, returning Sat, May 31, priced at $167 found 3 hours ago
Jetstar
Fri, May 30 - Sat, May 31
SYD
Sydney
ADL
Adelaide
$170 Roundtrip, found 3 hours ago
$170
Roundtrip
found 3 hours ago
Select Jetstar flight, departing Fri, May 30 from Sydney to Adelaide, returning Sat, May 31, priced at $170 found 3 hours ago
Jetstar
Mon, Jan 19 - Thu, Feb 12
SYD
Sydney
ADL
Adelaide
$175 Roundtrip, found 3 hours ago
$175
Roundtrip
found 3 hours ago
Select Jetstar flight, departing Mon, Jan 19 from Sydney to Adelaide, returning Thu, Feb 12, priced at $175 found 3 hours ago
Virgin Australia
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$199 Roundtrip, just found
$199
Roundtrip
just found
Select Virgin Australia flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $199 just found
Qantas Airways
Thu, Jul 3 - Mon, Jul 7
SYD
Sydney
ADL
Adelaide
$341 Roundtrip, just found
$341
Roundtrip
just found
Select Qantas Airways flight, departing Thu, Jul 3 from Sydney to Adelaide, returning Mon, Jul 7, priced at $341 just found
Flights from Sydney (SYD) to Adelaide (ADL)
Origin airport
Kingsford Smith Intl.
Destination airport
Adelaide
Airlines serving
Jetstar, Qantas Airways, Virgin Australia
Roundtrip price
$147
Distance
722 mi

Sydney to Adelaide Flights

The cheapest times to fly from Sydney to Adelaide

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

The best time to book a flight from Sydney to Adelaide

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

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 Adelaide in 2025. You can also book with separate airlines for your outbound and return journeys, from $74 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 Adelaide 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 Adelaide 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 Adelaide Airport (ADL) cost?
You can score cheap return flights from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL) starting from $144. Book a seat and get ready to go. 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 SYD on May 9 2025 and touching down at ADL. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from SYD to ADL?
The cheapest flights from SYD to ADL 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 Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
Enjoy a seamless journey to Adelaide Airport (ADL). 3 carriers offer direct routes from Kingsford Smith Intl. Airport (SYD), including:

  • Qantas
  • Virgin Australia
  • Jetstar

What is the cheapest airline that flies from SYD to ADL?
Currently, the cheapest airline offering one-way flights from SYD to ADL is Jetstar. You can take off on this route from $74. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SYD on July 17 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
With an average of 17 direct flights that operate from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL) daily, you’ll be on your way in no time.
What are the most popular departure times for flights from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
More people fly between SYD and ADL at 9 AM than at any other time. Prefer a quieter experience? Try choosing a quieter departure window and there’s a chance you’ll save on your ticket as well.
What day of the week has the most flights from SYD to ADL?
Jet off on a Friday if you’re searching for the largest selection of flights from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL).
What is the earliest flight from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
Kingsford Smith Intl. Airport (SYD)’s earliest flight to Adelaide Airport (ADL) leaves at approximately 6:40AM UTC+11. With a travel duration of 2h 5m, you’ll arrive at around 8:15AM UTC+10.
How long does it take to fly from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
The average flight time from SYD to ADL is 2 hours and 6 minutes, covering a distance of 720 mi.
What airline has the least delays from SYD to ADL?
Cathay Pacific has the best performance for on-time direct flights from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL), with an on-time score of 100%. Use the Expedia App to look up your journey status before you jet off and get notified of any changes.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
To avoid potential delays on the Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Adelaide from Kingsford Smith Intl. Airport (SYD)?
Adelaide Airport (ADL) is the only airport in Adelaide with direct flights from Kingsford Smith Intl. Airport (SYD). Compare the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL) last-minute?
Booking your ticket from SYD to ADL shortly before your trip is typically more expensive. However, if there’s some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a SYD to ADL flight and hotel package?
Compared with arranging hotels and flights separately, booking a SYD to ADL flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one place will take the stress out of travel planning. Just pick your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Adelaide Airport (ADL)?
In most cases, you can reschedule or cancel your SYD to ADL flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you want more details, visit our Customer Service portal.

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*Available to One Key members.