Cheap flights from Adelaide to Sydney from $89

In general, January is the cheapest month to fly from Adelaide to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $174. If you are unable to visit Sydney during the month of January, then departing from Adelaide during the month May is also very affordable. Most momondo users find prices during this month for around $192.

The cheapest day to depart from Adelaide to Sydney is on a Friday when prices can be found for as low as $325. The most expensive day to fly to Sydney is Wednesday, with ticket prices averaging around $990.

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Adelaide to Sydney in the afternoon for as low as $251. 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 Sydney are more costly at noon, with an average ticket price of $1,077. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Sydney from Adelaide when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $205 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Adelaide for as low as $182 on momondo.

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

No. A direct flight is the cheapest option for a flight between Adelaide to Sydney.

As of September 2026, prices for Adelaide to Sydney flights are approximately 8% more expensive when compared to flights at the same time last year.

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

Jetstar, Virgin Australia and Qantas Airways are the top three most popular airlines that fly to Sydney from Adelaide according to our data. Jetstar is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Adelaide and Sydney have experienced a delay on any given week. The average delay length over the past 12 months has been 91 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

The number of flights available between Adelaide and Sydney is 104 per day as of September 2026. The most frequent departure time is 6:00AM, with 46% of daily flights leaving at noon.

As of September 2026, 731 flights take off from Adelaide and land in Sydney each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.