Air New Zealand has put a further hold on certain bookings to Australia in response to Australian government restrictions.
Prime Minister Scott Morrison's government has extended its cap on international arrivals until October 24.
There is currently a cap of 25 passenger arrivals per flight into Brisbane and around 40 passenger arrivals per flight into Sydney, while international passenger arrivals into Melbourne are banned altogether.
Air NZ's chief commercial and customer officer Cam Wallace says the airline is placing a hold on future bookings to Melbourne until late October to prevent further disruption to customers.
"We know this is not an ideal situation for people wanting to return home to Australia and our teams are working to minimise disruption to customers as much as possible. We'd like to thank our customers for their patience at this time as we work to comply with these government restrictions," Wallace said.
The airline says it does have availability on flights to Sydney from early September for those who wish to book.
"With Brisbane, while there is currently a hold on new bookings, we expect flights may become available as customers make changes to their bookings or no longer wish to travel, so customers should keep an eye out on our website," Wallace said.
Meanwhile, Jetstar announced on Tuesday that its "international services from and to New Zealand and Trans-Tasman flights are cancelled until at least October 24, 2020."
Impacted customers will be contacted directly to advise them of their options, which include a credit voucher or a refund, Jetstar said.