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Cheap flights from Adelaide to Sydney from £54

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SYD
6 Jul — 13 Jul1
1 adult

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 Monday or Tuesday and return on a Wednesday

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 1 July 2025.

Round-trip from

£107

One-way from

£54

Popular in

December

Cheapest in

August

Average price

£124

Good round-trip deal

£130 or less

Good one-way deal

£71 or less
Jetstar
  • Jetstar
  • 11/8-18/8
  • Nonstop
  • 4h 05m total
  • Adelaide to Sydney
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Jetstar
  • Jetstar
  • 21/8
  • Nonstop
  • 1h 55m total
  • Adelaide to Sydney
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Highest demand for flights based on searches. 9% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in July 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 1 July 2025.

Mon 11/806:25ADL - SYD
Nonstop1h 55mJetstar
Mon 18/806:20SYD - ADL
Nonstop2h 10mJetstar
Deal found 30/6£107
Sat 25/1006:00ADL - SYD
Nonstop1h 50mVirgin Australia
Sun 2/1119:30SYD - ADL
Nonstop2h 10mVirgin Australia
Deal found 29/6£120
Wed 3/906:25ADL - SYD
Nonstop1h 55mMultiple Airlines
Wed 3/920:30SYD - ADL
1 stop11h 55mMultiple Airlines
Deal found 30/6£150

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 858,174 searches. Data last updated 1 July 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

Mon 11/8

06:25-08:50

Nonstop1h 55m

Sydney Kingsford Smith

Mon 18/8

06:20-08:00

Nonstop2h 10m

£107

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 25/10

06:00-08:20

Nonstop1h 50m

Sydney Kingsford Smith

Sun 2/11

19:30-21:10

Nonstop2h 10m

£120

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Wed 3/9

06:25-08:50

Nonstop1h 55m

Sydney Kingsford Smith

Wed 3/9

20:30-07:55

1 stop11h 55m

£150

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Thu 21/8

17:15-19:40

Nonstop1h 55m

£54

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 6/9

06:00-08:20

Nonstop1h 50m

£61

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Sat 6/9

12:15-18:25

1 stop5h 40m

£104

AdelaideSydney

ADL - SYD

ADLSYD

Adelaide

Tue 15/7

16:55-19:15

Nonstop1h 50m

£112

Flights are sorted by cheapest return flights first.

Deals found on 28/6

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 27 June 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 £985). Flying from Adelaide to Sydney in July is currently the most expensive (average of £1,708). 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 1 July 2025.

It’s typically best to fly out from Adelaide to Sydney in the evening. Doing so could potentially save you 67% on the flight price compared to flying at midday, 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 return from Adelaide to Sydney. Price data was last updated on 29 June 2025.

Travellers seeking maximum savings on their Adelaide to Sydney flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at midday 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 1 July 2025.

The most flights from ADL to SYD are scheduled on a Friday (112 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (91 on average).

How much does it cost for a return flight from Adelaide to Sydney?

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 1 July 2025.
See what other customers who have flown with Qantas Airways, Virgin Australia, andJetstar from Adelaide to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
869 reviews
Check prices

Comfort

7.4

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.1

Overall

7.5

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
Qantas Airways
7.5
Good
869 reviews
Qantas Airways
7.5
Good
869 reviews
Check prices

Comfort

7.4

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.1

Overall

7.5

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
Virgin Australia
7.5
Good
409 reviews
Qantas Airways
7.5
Good
869 reviews
Check prices

Comfort

7.4

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.1

Overall

7.5

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
Jetstar
6.5
Okay
454 reviews
Qantas Airways
7.5
Good
869 reviews
Check prices

Comfort

7.4

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.1

Overall

7.5

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!

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?

    To fly from Adelaide to Sydney, you need to book a flight from Adelaide (ADL) to Kingsford Smith (SYD). Nonstop flights to Sydney Kingsford Smith from Adelaide take 1h 50m on average. When it comes time to book airfare, you have a few options: there are 100 outbound flights from Adelaide to Kingsford Smith offered by 2 different airlines.

  • How popular is this Adelaide to Sydney flight route?

    The Adelaide to Sydney Kingsford Smith flight path was viewed by 103 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Jetstar, at £107, was found to be the cheapest airline from Adelaide to Sydney. An alternate airline flying to your destination would be Virgin Australia. Users have found that Jetstar is 18% cheaper than the other options available to this destination.

  • 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 £54. Virgin Australia flights start at £61 while deals on Qantas Airways start at £112 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 British Airways (87%), Air France (80%) or Qantas Airways (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Adelaide to Sydney?

    Looking for the cheapest flight from Adelaide to Sydney? While on average our users pay £119, our data indicates the cheapest price to be £58. The most popular route (Adelaide - Sydney Kingsford Smith), is priced around £121.

  • 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 £985). Flying from Adelaide to Sydney in July is currently the most expensive (average of £1,708). 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 Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Bondi Beach
Coogee
Manly

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Top 2 airlines flying from Adelaide to Sydney

Discover the top 2 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 858,174 searches. Data last updated 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest£101Average£131FlexibilityNo cancel feeOn-time74%
Search Jetstar flights
Virgin AustraliaCheapest£110Average£157FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights

Fly with Cheapflights

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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?

Cheapflights simply makes it quick and affordable to book flights from Adelaide to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Adelaide to Sydney flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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