Hundreds of people remain in emergency evacuation centres in the capital Port Vila as Tropical Cyclone Kevin brought destructive winds and heavy rainfall.
ABC Pacific Vanuatu's Prime Minister Ishmael Kalsakau said he was grateful for the assistance.
"With the generosity of the Australian government, we've undertaken a surveillance flight over Port Vila, Eramango and Tanna," he said.
"Suffice to say it's a very sad state of affairs."