As a part of our tour package the flights were unfortunately booked through Go! On return trip to Oahu from Hilo we was initially advised as a THREE hour delay! That would mean an approximate 10:50pm flight (but not guaranteed!!!) after waking to meet the tour bus at 4am that morning was not impressed! Especially not impressed that the Go staff who happily gave us a boarding passes at 6pm and knew about the delay, did not mention a thing but announced it over the airport PA system half an hour prior to the 7:30 flight!! They were obviously relying on passengers not bothering to redo security to question them!
My advise! Check who your inter island flights are with, if Go request request Hawaiian air or change tour operator!!