Cheap flights from Sydney to Adelaide from $86

The cheapest month to fly to Adelaide from Sydney is in May. Flight prices, which tend to average around $156, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Adelaide from Sydney during August instead. Flights to Adelaide in August, while not as cheap as those in May, still average around $158.

The cheapest day to depart on your flight to Adelaide is on a Monday when prices can be found for as low as $198. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Adelaide is Sunday, with ticket prices averaging around $279.

According to our data, the cheapest time of day to fly to Adelaide is in the morning. momondo users have found flights departing from Sydney to Adelaide in the morning for as low as $214. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Adelaide are more costly at noon, with an average ticket price of $339. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $189 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Adelaide from Sydney for as low as $155 on momondo.

There are 3 cabin classes available to choose from on Sydney Kingsford Smith 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 61% of people opting to fly with this airline when traveling 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 at night have, in the past, seen delays more frequently in comparison.

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

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

As of February 2026, 103 flights take off from Sydney and land in Adelaide each day. The most common flight departure time for this route is 9:00AM, with 44% of daily flights taking off at noon.

722 flights are operational weekly from Sydney to Adelaide as of February 2026. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.