Air New Zealand has been left scrambling to explain why Kiwis are charged hundreds - even thousands - of dollars more than British passengers for the same flights.
A customer based in Britain who books online a return economy-class flight from London to Auckland will pay much less than a New Zealand-based traveller who books the same journey in reverse on Air New Zealand's website at the same time.
The price disparity can vary wildly, but a standard round-trip between Auckland and Heathrow via Los Angeles will set a New Zealand-based passenger back $500 more for an economy seat, $1500 more for a SkyCouch upgrade, $2100 more for a premium economy seat and $3000 in business class.
In a written statement, Air New Zealand public affairs manager Tracy Smeaton explained it was currently the low season for people from the Northern Hemisphere travelling here, and New Zealanders would enjoy a comparative price difference during the Northern Hemisphere winter. But a survey of prices on Air New Zealand's website showed the price gaps were consistent all year round.
Smeaton later said: "We are a commercial operation and supply and demand are the basic factors which determine the price of any product."