Originally Posted by
DomesticGoddess
My only question is, as i'll presumably have to exit and re-enter through customs, how early am I able to do that? I will not have any check-in bags, if that makes a difference, and I could do online check-in if that is available.
Since it is same day return, you should get both WLG-SYD and SYD-WLG boarding passes at check in at WLG. Even if for some reason they are unable to do this, you can skip immigration and get the return BP at the lounge.