Promocodes are offered regularly through our monthly newsletter, in selected publications and through business partners such as the AA. To use a Promocode, simply proceed to complete your online booking. After you have entered your passenger details and have clicked to proceed you will come to the Payment Details page where you will find the Promocode box. Simply type or paste your Promocode into the box and hit the enter button and the discount will apply.

Please note that many Promocodes are only valid on certain fares types and are date limited. If your Promocode is not working, then please check the booking date range, travel date range and fare types that were specified with the advertised Promocode.

You are allowed to bring your pet, but they must be kept in your vehicle for the entirety of the journey. If you are travelling as a foot passenger then we have kennels available for hire. Cats can be checked-in provided they are in a suitable animal carrier/cage. Other caged animals can also be checked-in. You will not be able to visit your animal during the sailing, so please ensure they are well fed, watered and exercised prior to boarding.

You can change your sailing at any point prior to Check-In opening (i.e. one hour before scheduled departure). To change your sailing, simply log in to your booking online and select an alternative available sailing. You can change to an equivalent priced sailing free of charge or pay additional costs to upgrade to a more expensive sailing.

If you wish to transport cargo, including cars and trailers, without travelling then you can arrange this by calling our freight service on 0800 660 670 or email freight@interislander.co.nz for more information.

Children under 15 must be accompanied by an adult. Adults are considered to be anyone over the age of 15. Those aged 15-17 years old will need to call us on 0800 802 802 if they wish to travel on a child fare without an adult fare included in the booking.