The best month to fly between Sydney and Adelaide is February and the most expensive month to fly is March. (Average prices, based on 1000 datapoints.)
The best day to arrive at Sydney is Saturday and it would be best to avoid Monday, as prices are on average 265.95% higher than on Saturday. (Average prices, based on 4192055 datapoints.)
The cheapest airline flying from Sydney to Adelaide is JetStar Airways. They are 48% cheaper than Qantas. (Average prices, based on 1011 datapoints.)
The best time to fly is at around 6. (Average prices, based on 1100 datapoints.)