How many international carriers operating B737 and larger does an island with a population of 2,210 need, before the last person turns out the lights? Champagne tastes on beer money?
Sydney to Norfolk Island is 1,673 km (903 naut miles) and Auckland to Norfolk Island is 1,074 km (580 naut miles).
Service frequency is the secret to a successful air service. It seems to me a Dash 8 or similar turbo prop would be the appropriate aircraft for the Sydney - Lord Howe - Norfolk Island - Auckland service?