File photo. Four flights were cancelled on Sunday. Photo: Supplied / Craig Miller / GNS Science
Two more flights out of Tauranga were cancelled on Monday morning due to volcanic ash from Whakaari White Island.
The volcanic activity had caused Air New Zealand to cancel four flights on Sunday evening.
Geonet's website showed White Island remained at volcanic alert level 3 on Monday morning, which it said indicated a minor eruption.
Air New Zealand said it did not expect further flight cancellations on Monday. It earlier advised passengers to keep an eye on the airline's app and website.
Whakaari, which lies offshore in the Bay of Plenty, is New Zealand's most active cone volcano.
In 2019, tour groups visiting the island were caught in a sudden eruption, with 22 people killed and many more badly injured. The fifth anniversary of the incident was marked in a ceremony at Whakatāne, in December.
