Flight Christchurch International Airport departs from Christchurch Christchurch International Airport at 12:05 and arrives at Wellington Wellington International Airport at 12:55.
The flighttime is about 0h 50m. The distance travelled ("as the bird flies"): 348 Km. So the average speed is roughly 418 Km.
The best month to arrive at Christchurch is February and the most expensive month to fly is June. (Average prices, based on 252 datapoints.)
We have a lot more statistics for flights NZ 326 and between Christchurch and Wellington.