Originally Posted by Hoc
fly to HKG and start an AONEx from there, flying into North America (JFK), and then either to Australia or Europe as the next continent.
HKG-<N America>-<Australia>-... can never be a valid routing for a xONEn ticket (you start from TC3 (Asia + Australasia), so you can only re-enter it at the end). If you go HKG-<N America> the next continent (in the absence of any NA-Africa flights) must be Europe.