How many hours does Chengdu fly to New Zealand?

17.25 hours. Ctrip's website shows that Chengdu flies to New Zealand, departs from Chengdu, takes 3U3885 to Melbourne Airport, and then transfers to NZ258 flight to Wellington International Airport. It takes 17.25 hours to leave at 0: 40 and arrive at 23: 55. You can also take 3U3885, transfer in Sydney, transfer to flight QF 163, arrive at Wellington International Airport, leave at 1: 35 and arrive at 23: 55, which takes 17 hours and 20 minutes.