Please be aware that Melbourne has multiple airports and that these results are for all airports serving the city.
The best month to fly between Melbourne and Sydney is August and the most expensive month to fly is November. (Average prices, based on 1240 datapoints.)
The best day to arrive at Melbourne is Tuesday and it would be best to avoid Saturday, as prices are on average 29.97% higher than on Tuesday. (Average prices, based on 17085 datapoints.)
The cheapest airline flying from Melbourne to Sydney is JetStar Airways. They are 57% cheaper than Qantas. (Average prices, based on 1274 datapoints.)
The best time to fly is at around 20. (Average prices, based on 4716 datapoints.)