New Zealand will make full Covid vaccination a requirement of entry as of November 1, although 14 days of quarantine will remain part of the country's first line of defence against the coronavirus.
In addition, all international travellers – except those from a handful of exempt locations – will need to show a negative Covid-19 test result taken within 72 hours of their flight.
"To further reduce the possibility of the virus getting through our border, we are introducing the requirement for air travellers aged 17 and over, who are not New Zealand citizens, to be fully vaccinated to enter New Zealand," the country's Covid-19 Response Minister Chris Hipkins said in a statement.
Travellers will have to provide proof of vaccination, or a valid medical exemption, to their airline upon check-in and also NZ customs officers on landing.
The NZ government and its Medsafe health authority have approved 22 vaccines, and the last dose must be taken at least 14 days before arrival.
"Most people coming to New Zealand tell us they are already vaccinated," Hipkins added. "This requirement makes it formal and will provide an extra layer of protection at the border."
Air New Zealand will also require that from February 2022, all passengers on its international flights will need to be vaccinated.
"Being vaccinated against Covid-19 is the new reality of international travel," Air New Zealand CEO Greg Foran said in a statement, adding that "many of the destinations Kiwis want to visit are already closed to unvaccinated visitors."
"As with anything, there will be some that disagree. However, we know this is the right thing to do to protect our people, our customers and the wider New Zealand community."
Qantas has already announced that all passengers on its international flights must be fully vaccinated, while Virgin Australia – which currently flies only domestic routes, but plans to resume overseas flying from December – has yet to release its own vaccination policy.