Try SCL-AKL but as still hard to get as above post. A flight in the timetable and getting a flight are very different things. Also some flights are not every day. SCL then to EZE-SYD (on QF) may be easier from South America to Aust. Others have tried & failed to get from South America to Aust on a xONEx.
Try Cathay for HKG to JHB.
Link to your new
initinerary here . Please be aware that flights in MM are not allways 100% correct as routes are inputted onto the program manually