It's thought that the aviation sector is over capitalising - as New Zealand's domestic airfares have shot up more quickly than any other country.
A global airport group says domestic airfares are up 63% in six years, and are well ahead of the second-highest, up 53%.
Air New Zealand's Chief customer and digital officer Jeremy O'Brien told Mike Hosking that accelerated inflation is effecting the industry.
He says we're a reasonably small country with long distances to fly.
O'Brien says in many cases the industry is over-capitalising, which then impacts the sustainability of the market.
LISTEN ABOVE

Mark the Week: 'Horse-faced duck' gave a look behind the scenes at Labour
02:48

Mike's Minute: My thoughts on the Budget
01:59

Richard Arnold: US Correspondent on the latest draft plan for an extension to the ceasefire between Iran and the US
03:14