The first step is to visit first the Hawaiian Airlines homepage. Click the Manage Flights option, select My Trips.Then, enter the name of the passenger's last name and the confirmation code or itinerary number.Select the "alter Flights" link that is above the summary of the trip page.Once you have selected the passenger for whom you want to switch flights Click Continue.Choose the flights you want to alter. After you have changed your travel dates and routes then select "Search for New Flights".Choose your next flight.Then, go through the itinerary, then click Continue.Then, choose new seats.Click to Book This Trip to review the schedule, seats and other information.If you have any concerns or received an error message from Hawaiian Airlines Change Flight, please contact customer service at Hawaiian Airlines. Read Also: Lufthansa Flight Change | Southwest Flight Change | Virgin Flight Change