What Is the Phone Number for Hawaiian Airlines Group Sales? Anyone can secure seats on Hawaiian Airlines for their group trips easily. To do so, they need to call the air carrier reservation desk and raise their booking request. However, the Hawaiian Airlines group travel service desk number is open to help its flyers Monday to Friday, 7 am to 5 pm (HST). Accordingly, by doing this, they can also get instant answers regarding any flight queries, including the booking process, discounts, and more. For further details about group services, they can go through the official website of Hawaiian Airlines. #hawaiianairlinesgrouptravel