In general, when booking your flight to Adelaide, August is the cheapest month on average.
In general, most flyers find the cheapest time to book a flight to Adelaide is about 60 days prior.
Most of our users find that booking their departure to Adelaide on a Tuesday is the cheapest. Conversely, departing on a Sunday seems to be the most expensive.
Typically, cheap prices to Adelaide are most often found for evening flights. Cheap prices are less likely for morning flights.