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Cheap flights from Adelaide to Sydney from $115

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SYD
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Adelaide to Sydney Kingsford Smith are usually found in August or May, booked 64 days in advance, depart on a Friday or Saturday and return on a Saturday

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 17 September 2025.

Round-trip from

$232

One-way from

$115

Popular in

December

Cheapest in

August

Average price

$270

Good round-trip deal

$248 or less

Good one-way deal

$155 or less
Jetstar
  • Jetstar
  • 1/11-5/11
  • Nonstop
  • 3h 55m total
  • Adelaide to Sydney
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Jetstar
  • Jetstar
  • 20/9
  • Nonstop
  • 1h 50m total
  • Adelaide to Sydney
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Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average return price).
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Average for round-trip flights in September 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 17 September 2025.

Sat 1/1117:40ADL - SYD
Nonstop1h 50mJetstar
Wed 5/1120:40SYD - ADL
Nonstop2h 05mJetstar
Deal found 16/9$232
Wed 12/1119:40ADL - SYD
Nonstop1h 50mJetstar
Mon 17/1107:10SYD - ADL
Nonstop2h 05mJetstar
Deal found 15/9$234
Sat 20/919:40ADL - SYD
Nonstop1h 50mJetstar
Mon 22/906:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 15/9$235
Thu 18/919:40ADL - SYD
Nonstop1h 50mJetstar
Sun 21/906:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 15/9$237
Thu 16/1009:15ADL - SYD
Nonstop1h 55mJetstar
Sun 19/1006:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 15/9$240
Thu 30/1019:40ADL - SYD
Nonstop1h 50mJetstar
Thu 6/1120:40SYD - ADL
Nonstop2h 05mJetstar
Deal found 15/9$241
Tue 28/1017:40ADL - SYD
Nonstop1h 50mJetstar
Wed 29/1020:40SYD - ADL
Nonstop2h 05mJetstar
Deal found 16/9$243
Wed 17/906:25ADL - SYD
Nonstop1h 55mJetstar
Wed 24/920:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 15/9$246
Tue 14/1006:25ADL - SYD
Nonstop1h 55mJetstar
Tue 21/1006:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 16/9$247
Mon 3/1119:40ADL - SYD
Nonstop1h 50mJetstar
Thu 6/1120:40SYD - ADL
Nonstop2h 05mJetstar
Deal found 16/9$250
Mon 8/1219:40ADL - SYD
Nonstop1h 50mJetstar
Tue 9/1210:55SYD - ADL
Nonstop2h 10mJetstar
Deal found 15/9$253

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 17 September 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

Sat 1/11

17:40-20:00

Nonstop1h 50m

Sydney Kingsford Smith

Wed 5/11

20:40-22:15

Nonstop2h 05m

$232

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 13/1

14:45-17:05

Nonstop1h 50m

Sydney Kingsford Smith

Tue 20/1

20:40-22:15

Nonstop2h 05m

$235

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Fri 23/1

19:40-22:00

Nonstop1h 50m

Sydney Kingsford Smith

Mon 26/1

07:10-08:45

Nonstop2h 05m

$235

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 18/11

07:45-10:15

Nonstop2h 00m

Sydney Kingsford Smith

Sat 22/11

20:40-22:15

Nonstop2h 05m

$235

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Wed 29/10

14:45-17:05

Nonstop1h 50m

Sydney Kingsford Smith

Wed 5/11

20:40-22:15

Nonstop2h 05m

$237

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 14/10

06:25-08:50

Nonstop1h 55m

Sydney Kingsford Smith

Tue 21/10

06:20-08:00

Nonstop2h 10m

$247

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Mon 8/12

19:40-22:00

Nonstop1h 50m

Sydney Kingsford Smith

Tue 9/12

10:55-12:35

Nonstop2h 10m

$253

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Fri 10/10

19:40-22:00

Nonstop1h 50m

Sydney Kingsford Smith

Sun 12/10

06:20-08:00

Nonstop2h 10m

$279

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Fri 28/11

19:40-22:00

Nonstop1h 50m

Sydney Kingsford Smith

Mon 1/12

07:10-08:45

Nonstop2h 05m

$280

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 28/10

17:40-20:00

Nonstop1h 50m

Sydney Kingsford Smith

Tue 4/11

17:25-19:00

Nonstop2h 05m

$280

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 23 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 return 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 return flight from Adelaide to Sydney. Price data was last updated on 12 September 2025.

The best time to book flights from Adelaide to Sydney is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Adelaide to Sydney (average of $129). Flying from Adelaide to Sydney in October is currently the most expensive (average of $171). 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 17 September 2025.

A simple way to save on the total cost of your ticket is to fly from Adelaide to Sydney in the evening. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Adelaide to Sydney. Price data was last updated on 14 September 2025.

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

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 17 September 2025.
Read through reviews of airlines operating flights from Adelaide to Sydney, such as Virgin Australia, Qantas Airways, andJetstar. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Australia
7.6
Good
416 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.4

Overall

7.6

Food

6.4

Comfort

7.5

Reviews

1 / 20
6.0
Good

Andrew,June 2025

MEL - CNS

We didn’t eat or drink, but feel like a sardine. No room at all.
Virgin Australia
7.6
Good
416 reviews
Virgin Australia
7.6
Good
416 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.4

Overall

7.6

Food

6.4

Comfort

7.5

Reviews

1 / 20
6.0
Good

Andrew,June 2025

MEL - CNS

We didn’t eat or drink, but feel like a sardine. No room at all.
Qantas Airways
7.5
Good
907 reviews
Virgin Australia
7.6
Good
416 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.4

Overall

7.6

Food

6.4

Comfort

7.5

Reviews

1 / 20
6.0
Good

Andrew,June 2025

MEL - CNS

We didn’t eat or drink, but feel like a sardine. No room at all.
Jetstar
6.5
Okay
474 reviews
Virgin Australia
7.6
Good
416 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.4

Overall

7.6

Food

6.4

Comfort

7.5

Reviews

1 / 20
6.0
Good

Andrew,June 2025

MEL - CNS

We didn’t eat or drink, but feel like a sardine. No room at all.

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 100 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 29,907 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?

    Departing from Adelaide to Sydney will take you 1h 50m. Airlines will cover a distance of 1164 km. All flights are typically direct.

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

    According to our current data, Virgin Australia ($171), Jetstar ($177), and Qantas Airways ($214) offers the cheapest pricing from Adelaide to Sydney. Virgin Australia is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

    The top 3 most reliable airlines when flying from Adelaide to Sydney are Jetstar (83%), British Airways (81%) and IndiGo (77%).

  • What are the cheapest flights from Adelaide to Sydney?

    While on average a flight from Adelaide to Sydney is generally $1,471, our data shows the cheapest flight currently is $105. When looking at the most popular route, (Adelaide - Sydney Kingsford Smith), you can expect to pay $229 for that flight.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Adelaide to Sydney (average of $129). Flying from Adelaide to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Coogee
Cronulla
Leura

Browse thousands of different options on Cheapflights for your next trip

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Fly from Adelaide to Sydney on these airlines

Choose from the following airlines for your flight from Adelaide to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2025.
Jetstar flights from Adelaide to Sydney Kingsford Smith
Virgin Australia flights from Adelaide to Sydney Kingsford Smith

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 647,157 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$171Average$347FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
JetstarCheapest$177Average$268FlexibilityNo cancel feeOn-time74%
Search Jetstar flights
Qantas AirwaysCheapest$214Average$462FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Sydney?

Cheapflights helps you search for flights from Adelaide to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Adelaide to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Adelaide.

Can Cheapflights find flights from Adelaide to Sydney with no change fees?

Yes, we can. To see specific flights from Adelaide to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Adelaide to Sydney become cheaper?

Yes, Cheapflights offers price alerts on Adelaide to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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