The best month to fly between Wellington and Christchurch is February and the most expensive month to fly is May. (Average prices, based on 276 datapoints.)
The best day to arrive at Wellington is Friday and it would be best to avoid Wednesday, as prices are on average 252.11% higher than on Friday. (Average prices, based on 107740 datapoints.)
The best time to fly is at around 10. (Average prices, based on 397 datapoints.)