Questions are arising over whether Air New Zealand will have to continue to discount domestic flights in coming months as it grapples with sinking demand. 

October passenger data highlights the slow down, alongside lower-margin leisure travel and lower capacity. 

The airline's forecast a pre-tax profit of up to $230 million for the second half of 2023, down from nearly $300 million last year. 

Aviation commentator Irene King told Kate Hawkesby that the data was taken before its capacity problems in which aircrafts were taken out of the system. 

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