P&O Cruises has extended its suspension of sailings from New Zealand until 2021 and Australia until October 29, due to the COVID-19 pandemic.
Customers with tickets booked on cruises cancelled as a result will be entitled to a full refund or bonus onboard credit if they choose a future cruise credit, the company said.
The pause in operations had been scheduled to end on September 17 for Australia and August 31 for New Zealand, but has been extended as "the path to society reopening fully continues to evolve".
"Cruising will return when science and public health align and people again feel comfortable to meet," said P&O Cruises president Sture Myrmell in a statement.
"We will continue to use this time to liaise with authorities, public health experts, and others in the industry to develop enhanced public health measures for when the time is right to resume sailing."
Customers with bookings affected by the suspension extension can track the progress of their future cruise credit or refund request with a new tracking tool found on P&O's website, the company said.