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$77+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SYD
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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Cheapflights Tip: The best prices from Adelaide to Sydney Kingsford Smith are usually found in August or June, booked 79 days in advance, depart on a Saturday or Friday and return on a Monday

Cheap 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 December 2, 2025.

This CheapOair deal was found by Cheapflights users on 11/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:00 pmADL - SYD
Nonstop1h 50mJetstar
Thu 12/258:40 pmSYD - ADL
Nonstop2h 05mJetstar
Deal found 11/30$235
This Jetstar deal was found by Cheapflights users on 11/29. 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 12/237:40 pmADL - SYD
Nonstop1h 50mJetstar
Sat 12/277:00 amSYD - ADL
Nonstop2h 05mJetstar
Deal found 11/29$265
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
Wed 12/315:40 pmADL - SYD
Nonstop1h 50mJetstar
Sun 1/47:00 amSYD - ADL
Nonstop2h 05mJetstar
Deal found 11/30$277
This CheapOair deal was found by Cheapflights users on 12/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:40 pmADL - SYD
Nonstop1h 50mJetstar
Sat 1/107:00 amSYD - ADL
Nonstop2h 05mJetstar
Deal found 12/2$318
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
Wed 12/318:50 pmADL - SYD
1 stop10h 10mMultiple Airlines
Sun 1/47:00 amSYD - ADL
Nonstop2h 05mMultiple Airlines
Deal found 11/30$326
This Jetstar deal was found by Cheapflights users on 11/30. 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 12/27:40 pmADL - SYD
Nonstop1h 50mJetstar
Fri 12/511:00 amSYD - ADL
Nonstop2h 10mJetstar
Deal found 11/30$350
This CheapOair deal was found by Cheapflights users on 11/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:40 pmADL - SYD
Nonstop1h 50mJetstar
Mon 1/1211:50 amSYD - ADL
Nonstop2h 05mJetstar
Deal found 11/30$371
This Qantas Airways deal was found by Cheapflights users on 12/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:40 pmADL - SYD
Nonstop1h 50mMultiple Airlines
Mon 1/58:55 pmSYD - ADL
Nonstop2h 05mMultiple Airlines
Deal found 12/1$374

Find 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 December 2, 2025.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$137
(Jetstar)

One-way from

$77
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$225

Good round-trip deal

$270 or less

Good one-way deal

$143 or less
Provider with most accurate pricing for Adelaide-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Adelaide-Sydney Kingsford Smith flights.
Search Deals
From Adelaide to Sydney Kingsford Smith
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One-way flight from Adelaide to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Adelaide to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Adelaide to Sydney Kingsford Smith.
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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 December 2, 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

Tue 2/24

5:20 pm-7:40 pm

Nonstop1h 50m

Sydney Kingsford Smith

Tue 3/3

7:00 am-8:35 am

Nonstop2h 05m

$137

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 2/24

9:15 am-11:45 am

Nonstop2h 00m

Sydney Kingsford Smith

Tue 2/24

8:20 pm-9:55 pm

Nonstop2h 05m

$137

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Mon 3/16

7:45 pm-10:05 pm

Nonstop1h 50m

Sydney Kingsford Smith

Thu 3/19

8:20 pm-9:55 pm

Nonstop2h 05m

$137

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Mon 3/2

5:40 pm-8:00 pm

Nonstop1h 50m

Sydney Kingsford Smith

Fri 3/6

8:40 pm-10:15 pm

Nonstop2h 05m

$148

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 1/31

7:45 pm-10:05 pm

Nonstop1h 50m

Sydney Kingsford Smith

Wed 2/4

5:25 pm-7:00 pm

Nonstop2h 05m

$148

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Fri 1/30

7:45 pm-10:05 pm

Nonstop1h 50m

Sydney Kingsford Smith

Mon 2/2

12:30 pm-2:05 pm

Nonstop2h 05m

$152

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 4/21

2:30 pm-4:50 pm

Nonstop1h 50m

Sydney Kingsford Smith

Thu 4/23

7:20 pm-9:00 pm

Nonstop2h 10m

$157

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Wed 1/14

2:45 pm-5:05 pm

Nonstop1h 50m

Sydney Kingsford Smith

Wed 1/21

11:00 am-12:40 pm

Nonstop2h 10m

$159

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 1/20

7:45 am-10:15 am

Nonstop2h 00m

Sydney Kingsford Smith

Tue 1/20

8:40 pm-10:15 pm

Nonstop2h 05m

$159

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Fri 2/6

7:45 pm-10:05 pm

Nonstop1h 50m

Sydney Kingsford Smith

Tue 2/10

7:00 am-8:35 am

Nonstop2h 05m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 21 results
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Compare providers for flights from Adelaide to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Adelaide to Sydney in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Adelaide-Sydney flights, users find the pricing of OneTravel to be most consistent on Cheapflights vs. OneTravel Users can find the same prices on Adelaide-Sydney flight deals on Cheapflights vs. OneTravel >95% of the time. Price accuracy is based on data collected from Adelaide-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Adelaide-Sydney flights, Cheapflights users trust OneTravel the most. OneTravel has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Adelaide-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 28, 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 79 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 $84). Flying from Adelaide to Sydney in October is currently the most expensive (average of $112). 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 December 2, 2025.

It’s typically best to fly out from Adelaide to Sydney in the afternoon. Doing so could potentially save you 72% 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 November 29, 2025.

Travelers seeking maximum savings on their Adelaide to Sydney flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday evenings 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 December 2, 2025.
Get a feel of what it's like to fly with Virgin Australia, Qantas Airways, 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.
Virgin Australia
7.6
Good
426 reviews

Entertainment

6.4

Boarding

7.7

Crew

8.2

Comfort

7.5

Food

6.4

Overall

7.6

Reviews

1 / 20
6.0
Good

Andrew,Jun 2025

MEL - CNS

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

Entertainment

6.4

Boarding

7.7

Crew

8.2

Comfort

7.5

Food

6.4

Overall

7.6

Reviews

1 / 20
6.0
Good

Andrew,Jun 2025

MEL - CNS

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

Entertainment

6.4

Boarding

7.7

Crew

8.2

Comfort

7.5

Food

6.4

Overall

7.6

Reviews

1 / 20
6.0
Good

Andrew,Jun 2025

MEL - CNS

We didn’t eat or drink, but feel like a sardine. No room at all.
Jetstar
6.6
Okay
488 reviews
Virgin Australia
7.6
Good
426 reviews

Entertainment

6.4

Boarding

7.7

Crew

8.2

Comfort

7.5

Food

6.4

Overall

7.6

Reviews

1 / 20
6.0
Good

Andrew,Jun 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 104 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 82 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 and Virgin Australia fly from Adelaide to Sydney in about 1h 50m. 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 Jetstar is currently your cheapest option to Sydney, with prices starting at $138. Additional round-trip tickets that might be worth considering are offered by Virgin Australia and Qantas Airways, with the lowest prices starting at $157 and $265, respectively. These flights start at 24% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Adelaide to Sydney one-way?

    To fly one-way, consider booking your trip with Jetstar, which is currently one of the cheapest options available, starting at $67. Virgin Australia flights start at $75 while deals on Qantas Airways start at $121 one-way.

  • 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 Finnair (90%), British Airways (85%) or Fiji Airways (85%) 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 $274 for a flight from Adelaide to Sydney. The cheapest flight overall is $83 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 $84). Flying from Adelaide to Sydney in October is currently the most expensive (average of $112). 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
Parramatta
Wollongong
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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$139Average$198FlexibilityNo cancel feeOn-time74%
Virgin AustraliaCheapest$162Average$281FlexibilityNo cancel feeOn-time80%
Qantas AirwaysCheapest$281Average$359FlexibilityNo cancel feeOn-time74%

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