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

Compare Adelaide to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

Book the best Sydney fare with no extra fees

Flight deals from Adelaide to Sydney

Looking for a cheap last-minute deal or the best return flight from Adelaide Airport to Sydney Airport? If you want to travel next month, return fares start from $234. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Adelaide to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Adelaide to Sydney flights are currently cheapest in August.

Direct flights from Adelaide to Sydney

Adelaide to Sydney: Alternative routes

Compare routes from Adelaide to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Adelaide to Sydney: Flight information

The things to know before you go.
Cheapest flight found$221
Cheapest month to flyAugust
Average flight time1 hr, 55 mins
Most popular airlineIndiGo
Average flights per week812

Finding cheap flights from Adelaide to Sydney: Frequently asked questions

The best price we found for a return flight from Adelaide to Sydney is $221. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 55 minutes is the average flight time from Adelaide to Sydney.
IndiGo, Qatar Airways and Air New Zealand fly direct from Adelaide to Sydney.
As of June 2026, there are 812 flights per week flying from Adelaide to Sydney.
The cheapest month to fly from Adelaide to Sydney is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Adelaide Airport to Sydney Airport on Thursday, 6 August 2026.
Yes – the average flight time is 1 hour and 55 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Jetstar offers the cheapest flight tickets to Sydney.

Travelling from Adelaide Airport (ADL) to Sydney Airport (SYD): what you need to know

  • Take a direct flight from Adelaide Airport to Sydney Airport and you'll be in the air for an average of 1 hour 55 minutes.

  • Sydney is 30 minutes ahead of Adelaide and observes the UTC+11 timezone.

  • Every week, there are 131 Adelaide Airport to Sydney Airport flights. If you prefer to jet off as soon as possible, jump on the 06:00 Qantas flight. If you're eager to make the most of your day before flying, the last departure is at 20:10 with Qantas.

  • To ensure you catch your ADL to SYD flight, allow plenty of time to navigate the airport and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general rule.

  • Be prepared for longer queues during popular months like December. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a smart move.

  • You'll find a variety of airlines operating direct flights from Adelaide Airport to Sydney Airport. When you're ready to start your Sydney adventure, let one of these carriers fly you to this must-see part of Australia:

  • Qantas is the airline with the highest passenger demand for this route.

  • With 73.8% of services landing on schedule, Qantas is the most punctual carrier offering ADL to SYD flights.

  • Think about adding a stopover when booking your ticket from Adelaide Airport to Sydney Airport. Just deselect 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Check out these options between ADL and SYD:

    • Melbourne Tullamarine Airport

    • Canberra Airport

    • Launceston Airport

How to find the cheapest flights from Adelaide Airport (ADL) to Sydney Airport (SYD)

  • The cheapest price we've seen for a one-way Adelaide Airport to Sydney Airport flight is $109. A round-trip ticket is currently $221. Depending on the availability and when you book, these fares may change.

  • To score cheap tickets from ADL to SYD, reserve your journey seven months ahead of your departure date.

  • The cheapest month for flights from Adelaide Airport to Sydney Airport is December. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.

  • Getting your hands on cheap flights from ADL to SYD is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when a new discounted fare appears.

  • Tailor your trip using filters. Select your arrival and departure times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Adelaide Airport to Sydney Airport.

Handy information about Adelaide Airport (ADL)

  • 72% of flights that take off from Adelaide Airport make it to their destination on time.

  • Adelaide Airport is about 6 kilometres from central Adelaide. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.

  • You can expect a trip time of roughly 35 minutes when using public transport.

  • Have an early flight from Adelaide Airport to Sydney Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by picking one of these hotels near ADL:

Arriving at Sydney Airport (SYD)

  • If you're coming in on a late Adelaide Airport to Sydney Airport flight, nothing tops the convenience of being close to the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these hotels near SYD:

  • Say yes to new adventures by picking up a Sydney Airport rental car. Grab a set of wheels from simba car rental, Bargain Car Rentals or Yes Drive and explore beyond Sydney's main sights.

  • To secure the lowest price, reserve your ride from Sydney Airport around two weeks ahead.

When to fly to Sydney Airport (SYD)

  • It's time to work out your trip dates for your flight from Adelaide Airport to Sydney Airport. July is the most popular month to visit Sydney. If you'd like a quieter vibe, go in March.

  • Lock in your flight from Adelaide Airport to Sydney Airport for January if you want to visit Sydney during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 32ºC (90ºF).

  • July has average temperatures of between 5ºC (41ºF) and 19ºC (66ºF). Look for cheap tickets from ADL to SYD sometime then if you like cooler conditions.

Explore more of Australia

  • You've seen Sydney, now it's time to discover more of Australia. Journey about 241 kilometres south-west to Canberra to tick off its top attractions. From National Gallery of Australia to National Portrait Gallery and Museum of Australian Democracy, you've got a jam-packed schedule ahead.

  • Newcastle is another sought-after destination in Australia and is around 121 kilometres north-east of Sydney. No journey is complete without a visit to Merewether Beach, Nobbys Beach and Newcastle Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.