A pilot on here can correct me but the A320s burn about 2.5 tonnes going AKL-WLG and at an assumed purchase price of US$80 barrel,
that’s about US$1250 in fuel costs alone, never mind the cash cost to purchase more fuel than that to cover reserves, alternates etc. So at NZ$11,800 revenue incl. GST you’re looking at 20%-40% in fuel depending on how much is loaded. Those economics clearly only get worse the longer the sector if you stick to this belief of a $70 fare cap