Samoa Air has done the unthinkable by charging passengers based on how much they weigh. When buying a ticket, customers must enter their weight and the weight of their luggage before the airline provides the customized weight based fare during the booking process.
This weight information is then verified at the airport to keep customers honest. The airline claims that a typical family with 2 adults and 2 mid-sized children will likely pay less than the old pricing model.
It is important to remember that Somoa Air is a small carrier that operates small 12-seat plane where passenger weight (including luggage) accounts for the majority of take-off weight.
Source: Sydney Morning Herald