Dunedin-Auckland has been revealed to be New Zealand's most cancelled route of September

New Ministry of Transport data, shows four out of 44 domestic flights cancelled that month, were on that particular route.

Air New Zealand and Jetstar both say bad weather impacted on-time performance, with Dunedin particularly seeing winds exceeding normal operational limits.

Wellington-Queenstown had the highest on-time performance for September, with around 93 percent of flights leaving on time, and about 92 percent arriving on time.