A new report suggests the increase in domestic air fares may be due to a lack of the right planes.
In particular, airlines don't seem to have access to suitable 19-50 seat passenger aircraft.
Air New Zealand has abandoned some of their regional routes - but the gap in the market hasn't been filled.
Air Chathams chief commercial officer Duane Emeny speculates further.
LISTEN ABOVE

Richard Arnold: US correspondent on Bill Gates warning that AI growth can't keep 'going unchecked'
05:18

Vicky Pryce: business correspondent on Andy Burnham's bid to fix the cost of living amid rising energy prices
02:58

Katherine Rich: BusinessNZ CEO on the impact NZ First's proposed tax cut for small and medium businesses could have
09:03