Cheap flights from Adelaide to Sydney
Cheapflights Tip: The best prices from Adelaide to Sydney Kingsford Smith are usually found in August or June, booked 77 days in advance, depart on a Saturday or Tuesday and return on a Friday
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 28 October 2025.
Popular in | December |
|---|---|
Cheapest in | August |
Average price | C$ 304 |
Good round-trip deal | C$ 1,318 or less |
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.
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?
The best time to book flights from Adelaide to Sydney is 77 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, February is the cheapest month in which you can book a flight from Adelaide to Sydney (average of C$ 117). Flying from Adelaide to Sydney in May is currently the most expensive (average of C$ 151). 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?
It’s typically best to fly out from Adelaide to Sydney in the evening. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.
How often are flights from Adelaide to Sydney delayed?
About 15% of weekly flights between Adelaide and Sydney have experienced delays in the past year, with the average delay time being 85 minutes.
What is the most punctual flight time for Adelaide to Sydney flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Adelaide to Sydney flights?
Over the past year, Rex has had the lowest number of delays on this route, with no flights being classified as delayed.
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.
Travelling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Complete your trip to Sydney by adding a car rental and/or hotel reservation to your travel itinerary.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers 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?
Not ready to book yet? You can track prices for flights from Adelaide to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.