Air NZ in February predicted the COVID-19 hit to FY20 earnings would be in the range of $NZ35 million ($34 million) to $NZ75 million ($72 million) due to lower demand and capacity cuts.
The company on Monday said financial impact is now likely to be more significant than previously estimated.
"And with the situation evolving at such a rapid pace,the airline is not in a position to provide an earnings outlook to the market at this time,"Air New Zealand said in a release.
The company has already cut flights to Hong Kong,suspended Shanghai services until March,and Seoul flights from March to June.
Total capacity into Asia has been slashed by 26 per cent,and total overall network capacity cut by approximately 10 per cent since the outbreak of COVID-19 started. New Zealand's flag carrier cut capacity on flights to Australia by 7 per cent.
Qantas on Friday announced it would cut more international flights as it too grapples with falling demand.