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$73+ Cheap flights from Adelaide to Sydney (ADL - SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SYD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Adelaide to Sydney Kingsford Smith are usually found in May or June, booked 64 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Adelaide to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$145
(Kiwi.com)

One-way from

$73
(Jetstar)

Popular in

December

Cheapest in

May

Average price

$162

Good round-trip deal

$193 or less

Good one-way deal

$119 or less
From Adelaide to Sydney Kingsford Smith
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One-way flight from Adelaide to Sydney Kingsford Smith
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Highest demand for flights based on searches. 9% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Adelaide to Sydney Kingsford Smith.
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Price to beat on a one-way flight from Adelaide to Sydney Kingsford Smith.
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Find flight deals from Adelaide to Sydney

Cheapest flights from Adelaide to Sydney
Explore the most affordable flight options available from Adelaide to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:25 amADL - SYD
Nonstop1h 55mJetstar
Sun 9/216:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/17$145
This Jetstar deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:25 amADL - SYD
Nonstop1h 55mJetstar
Sun 8/246:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/17$146
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:25 amADL - SYD
Nonstop1h 55mJetstar
Tue 9/26:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$147
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:00 pmADL - SYD
Nonstop1h 50mJetstar
Sat 9/136:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/17$148
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:00 pmADL - SYD
Nonstop1h 50mJetstar
Sat 9/203:00 pmSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/15$149
This Jetstar deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/199:15 amADL - SYD
Nonstop1h 55mJetstar
Sat 8/236:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$150
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:40 pmADL - SYD
Nonstop1h 50mJetstar
Sun 11/27:10 amSYD - ADL
Nonstop2h 05mJetstar
Deal found 8/16$155
This Jetstar deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:15 pmADL - SYD
Nonstop1h 55mJetstar
Fri 9/198:20 pmSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/17$161
This Jetstar deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:25 amADL - SYD
Nonstop1h 55mJetstar
Fri 10/176:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$165
This Jetstar deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:25 amADL - SYD
Nonstop1h 55mJetstar
Sun 10/196:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$167
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:40 pmADL - SYD
Nonstop1h 50mJetstar
Mon 9/296:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$168
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:40 pmADL - SYD
1 stop9h 15mJetstar
Mon 9/226:20 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 8/18$179

Cheapflights Fare Finder

 
Customize your flight search to find flights from Adelaide to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Adelaide to Sydney that are best for you.

Fly from

Adelaide

Fly to

Sydney

Route

Depart

Return

Price

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sun 9/14

6:25 am-8:50 am

Nonstop1h 55m

Sydney Kingsford Smith

Sun 9/21

6:20 am-8:00 am

Nonstop2h 10m

$145

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 11/4

7:40 pm-10:00 pm

Nonstop1h 50m

Sydney Kingsford Smith

Tue 11/18

8:40 pm-10:15 pm

Nonstop2h 05m

$146

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 11/29

7:45 am-10:15 am

Nonstop2h 00m

Sydney Kingsford Smith

Wed 12/10

8:40 pm-10:15 pm

Nonstop2h 05m

$146

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Thu 11/27

7:40 pm-10:00 pm

Nonstop1h 50m

Sydney Kingsford Smith

Sun 11/30

7:10 am-8:45 am

Nonstop2h 05m

$146

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 11/15

7:40 pm-10:00 pm

Nonstop1h 50m

Sydney Kingsford Smith

Wed 11/19

7:10 am-8:45 am

Nonstop2h 05m

$146

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Mon 9/1

6:25 am-8:50 am

Nonstop1h 55m

Sydney Kingsford Smith

Tue 9/2

6:20 am-8:00 am

Nonstop2h 10m

$147

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 9/9

12:00 pm-2:20 pm

Nonstop1h 50m

Sydney Kingsford Smith

Sat 9/13

6:20 am-8:00 am

Nonstop2h 10m

$148

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Mon 9/15

12:00 pm-2:20 pm

Nonstop1h 50m

Sydney Kingsford Smith

Mon 9/22

6:20 am-8:00 am

Nonstop2h 10m

$148

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 9/16

5:15 pm-7:40 pm

Nonstop1h 55m

Sydney Kingsford Smith

Thu 9/18

5:20 pm-7:00 pm

Nonstop2h 10m

$149

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 9/13

12:00 pm-2:20 pm

Nonstop1h 50m

Sydney Kingsford Smith

Sat 9/20

3:00 pm-4:40 pm

Nonstop2h 10m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 22 results
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Best time to book a flight from Adelaide to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Adelaide with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Adelaide to Sydney

How far ahead should I book a flight from Adelaide to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Adelaide to Sydney. Price data was last updated on August 8, 2025.

The price you pay for your flight from Adelaide to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Adelaide to Sydney?

Currently, February is the cheapest month in which you can book a flight from Adelaide to Sydney (average of $1,031). Flying from Adelaide to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ADL to SYD?

Find hourly flight availability from Adelaide to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

It’s typically best to fly out from Adelaide to Sydney in the afternoon. Doing so could potentially save you 79% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Adelaide to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Adelaide to Sydney. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their Adelaide to Sydney flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Adelaide to Sydney

Explore weekly flight availability from Adelaide to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 18, 2025.

The most flights from ADL to SYD are scheduled on a Thursday (106 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (81 on average).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated August 18, 2025.
Get a feel of what it's like to fly with Qantas Airways, Virgin Australia, and Jetstar from Adelaide to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
896 reviews

Food

6.9

Comfort

7.4

Crew

8.2

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
896 reviews
Qantas Airways
7.5
Good
896 reviews

Food

6.9

Comfort

7.4

Crew

8.2

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Virgin Australia
7.5
Good
412 reviews
Qantas Airways
7.5
Good
896 reviews

Food

6.9

Comfort

7.4

Crew

8.2

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Jetstar
6.5
Okay
464 reviews
Qantas Airways
7.5
Good
896 reviews

Food

6.9

Comfort

7.4

Crew

8.2

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Adelaide to Sydney?

    Booking a flight from Adelaide (ADL) to Sydney Kingsford Smith (SYD) is your only option if you wish to fly from Adelaide to Sydney. On a typical day, there are 93 flights from Adelaide to Kingsford Smith, all of which are around 1h 50m for a nonstop flight. You can also purchase a plane ticket from 3 airlines when you book a flight from Adelaide to Sydney.

  • How popular is this Adelaide to Sydney flight route?

    This flight path from Adelaide to Sydney Kingsford Smith was viewed by 74 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Adelaide to Sydney?

    Airlines like Jetstar fly from Adelaide to Sydney in about 1h 55m. The time it takes to get you to your destination is usually consistent. The distance from Adelaide to Sydney is about 723 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Adelaide to Sydney round-trip?

    Flying on Virgin Australia is currently your cheapest option to Sydney, with prices starting at $106. Additional round-trip tickets that might be worth considering are offered by Jetstar and Qantas Airways, with the lowest prices starting at $137 and $188, respectively. These flights start at 41% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Adelaide to Sydney?

    No one likes to see their flight delayed. When booking a flight from Adelaide to Sydney consider choosing British Airways (81%), Qantas Airways (79%) or Jetstar (78%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Adelaide to Sydney?

    On average you can expect to pay $812 for a flight from Adelaide to Sydney. The cheapest flight overall is $103 while the most popular route, (Adelaide - Sydney Kingsford Smith) is currently priced at $166.

  • Can I find deals for flights from Adelaide to Sydney that include hotel bookings?

    Yes. In addition to deals on Adelaide to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Adelaide to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to Sydney.

  • Can I find deals for business class flights from Adelaide to Sydney?

    Yes. Cheapflights offers flight deals from Adelaide to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Adelaide to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Adelaide to Sydney (average of $1,031). Flying from Adelaide to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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Top 3 airlines flying from Adelaide to Sydney

Discover the top 3 airlines that operate flights from Adelaide to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$106Average$235FlexibilityNo cancel feeOn-time80%
JetstarCheapest$137Average$192FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$188Average$332FlexibilityNo cancel feeOn-time74%

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