Flight Christchurch International Airport departs from Christchurch Christchurch International Airport at 16:10 and arrives at Melbourne Melbourne Airport at 17:55.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 3137 Km. So the average speed is roughly 837 Km.
There is an 2 hour time difference between Christchurch and Melbourne
IDR