The best month to fly between Auckland and Sydney is June and the most expensive month to fly is January. (Average prices, based on 234 datapoints.)
The best day to arrive at Auckland is Saturday and it would be best to avoid Monday, as prices are on average 359.64% higher than on Saturday. (Average prices, based on 11524879 datapoints.)
The best time to fly is at around 19. (Average prices, based on 347 datapoints.)