Flight Christchurch International Airport departs from Christchurch Christchurch International Airport at 06:05 and arrives at Sydney Sydney Airport at 07:35.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 2577 Km. So the average speed is roughly 736 Km.
There is an 2 hour time difference between Christchurch and Sydney
The best day to arrive at Christchurch is Sunday and it would be best to avoid Friday, as prices are on average 777.92% higher than on Sunday. (Average prices, based on 240523 datapoints.)
We have a lot more statistics for flights QF 138 and between Christchurch and Sydney.