While Samoa Air's 2013 'fat tax' failed to gain traction, Finnair recently conducted a three-month voluntary data collection initiative, gathering passengers' weight along with their carry-on luggage.

Samoa Air, which launched last year to provide service around Samoa and neighboring islands, says its "pay-by-weight" system is the "fairest way" to charge travelers. It's straightforward ...

Samoa Air recently became the world's first airline to institute a "pay-by-weight" system, where the weight of a passenger and his luggage correlates exactly to his fare. Chief Executive Chris ...