Flight Wellington International Airport departs from Wellington Wellington International Airport at 15:05 and arrives at Christchurch Christchurch International Airport at 16:10.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 348 Km. So the average speed is roughly 321 Km.
The best month to arrive at Wellington is February and the most expensive month to fly is May. (Average prices, based on 276 datapoints.)
We have a lot more statistics for flights NZ 5379 and between Wellington and Christchurch.