Arrived from Italy
She is in self-isolation at home, with clinical support, does not need hospital help.
The woman's partner is also showing symptoms.
The flight was an Air New Zealand flight from Singapore to Auckland on 26 February. Other passengers are being contacted.
The woman also took two domestic flights from Palmerston North and Auckland and back again.
Two health providers and two schools are also being contacted for possible contact with the woman. There are West Lake Boy's and Girl's schools in Auckland.