Originally Posted by
JimEddie
Broadly a combination of cost & duration. Would be considering trying to UuA to CW on the SIN/HKG leg & potentially paying to upgrade on the other legs of the trip.
Going through HKG direct to AKL will be quicker since you don't have to transit through SYD and its also a slight detour, and also keep in mind SYD-AKL will be with Qantas which won't have premium economy on that segment.