The Interislander is putting on additional sailings of the Aratere tonight and tomorrow to help people get home for the nationwide alert level 4 lockdown.
Prime Minister Jacinda Ardern announced this afternoon the grace period for air travel from Queenstown and the Cook Strait ferry had been extended for 24 hours.
"This applies only to people needing to return home and is in response to the large amount of demand that we have on those facilities."
Interislander executive general manager Walter Rushbrook said the additional sailings were to provide extra capacity for homeward travel until 11.59pm on Friday.