Visit hawaiianairlines.com and go to the 'My Trip' section. Enter the last name of the passenger along with a six-digit booking reference. Here, you can also cancel the Hawaiian Airlines flight 24 hours prior to the date of booking to be eligible for a 100 percent refund.
To cancel your Hawaiian Airlines flight ticket there is a dedicated phone number to cancel ticket on call i.e 802-278-0759. A representative will be available to solve your query and in cancellation process.