Samoa Air says a controversial new policy that calculates a passenger's fare based on their weight could help the country tackle its obesity problem.
The pay by weight booking system requires passengers to type in their weight on the airline's online reservation system, where their fare is calculated, the ABC reports.
Chief executive Chris Langton says families have benefited the most, with children charged by their weight and not the number of seats.
Rates range from $1 a kilogram on the airline's shortest domestic route to more than $4 per kilogram for travel from Samoa to American Samoa.
Mr Langton says he has no doubt this is the way of the future.
He believes the airline's new payment policy will also help promote health and obesity awareness.