We are all flying to Bali in March from Brisbane, but my 20 years old son has to leave from Melbourne via Darwin. Can someone just put this worried mum's mind at ease and advise me on what happens when he gets to Darwin. His ticket says he flies domestic from Melb to Darwin, then international from Darwin to Bali. Does he go into transit lounge or does he have to re check in at Darwin.He wil only have carry on bag. Sorry if this is a silly question. Some advice would be welcome.