Cheap flights from Sydney to Adelaide from $125

The month of January is, on average, the cheapest month to fly to Adelaide from Sydney, with most prices found around $249. If you aren’t able to travel during the month of January, then book flights to Adelaide from Sydney during February instead. Flights to Adelaide in February, while not as cheap as those in January, still average around $273.

According to our data, Tuesday is the cheapest day to fly to Adelaide from Sydney. The lowest ticket price found for a Tuesday departure recently was $276. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $312. These prices are subject to change though, so be sure to set up a Price Alert for flights to Adelaide.

The cheapest time of day to fly to Adelaide is in the morning when flights can be purchased for as low as $292. Flights at midday are often more expensive, with an average ticket price of $397.

Fly from Sydney Kingsford Smith to Adelaide for the best Sydney Kingsford Smith - Adelaide flight prices

You are more likely to see cheaper flights to Adelaide from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Adelaide for around $294 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Adelaide from Sydney for as low as $253 on momondo.

There are 3 cabin classes available to choose from on Sydney to Adelaide flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Jetstar is the most popular carrier operating from Sydney Kingsford Smith to Adelaide

Jetstar, Virgin Australia and Qantas Airways are the top three most popular airlines that fly to Adelaide from Sydney according to our data. Jetstar is the first choice among our users, with 72% of people opting to fly with this airline when travelling to Adelaide. Keep in mind that there are 3 different airlines that fly to Adelaide on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between Sydney and Adelaide have experienced a delay on any given week. The average delay length over the past 12 months has been 90 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Qantas Airways have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

95 flights are operational daily from Sydney to Adelaide as of October 2026. The most popular departure time for this route is 09:00, with 45% of flights per day taking off in the afternoon.

As of October 2026, there are 665 flights per week flying from Sydney to Adelaide. The most common day of the week flights depart is Thu, with 18% of flights taking off on this day.