I sincerely doubt this will ever happen (imagine the backlash from groups arguing that excess avoirdupois isn’t a person’s fault and hence shouldn’t be punished) but those who have beenn compressed more than once by an overweight neighbor on a plane might applaud. From Bloomberg:
Imagine two scales at the airline ticket counter, one for your bags and one for you. The price of a ticket depends upon the weight of both.
That may not be so far-fetched.
“You listen to the airline CEOs, and nothing is beyond their imagination,” said David Castelveter, a spokesman for the Air Transport Association, a Washington, D.C.-based trade group. “They have already begun to think exotically. Nothing is not under the microscope.” He declined to discuss what any individual airline might be contemplating, including charging passengers based on weight.
If this were to happen, would you see arbitrage? I’d certainly consider sending things ahead by Fedex of UPS if my schedule permitted it and the savings were material.