Overweight luggage might not be the only reason you might have to pay more when you arrive at the airport. The thought of having two scales at the airline ticket counter, one for your bags and one for you, may not be a far-fetched idea according to bloomberg.com. The price of a ticket could depend upon the weight of both.

`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.

After U.S. airlines reported combined first-quarter losses of $1.7 billion and crude oil jumped to a record $133.17 a barrel on May 21, almost double from a year earlier, fares based on a passenger's weight may be a logical step, said Robert Mann, head of R.W. Mann & Co., an aviation consultant based in Port Washington, New York.

``If you look at the air-freight business, that's the way they've always done it,'' he said. ``We're getting treated like air freight when we travel by airlines, anyway.''

``Laughter aside, the airlines are just in a desperate situation,'' said David Swierenga, president of consulting firm Aeroecon in Round Rock, Texas, who dismissed weight-based ticket sales and steep price increases as unrealistic.

Southwest comes closest to charging for weight, asking passengers to buy a second seat if their girth prevents the armrest from lowering.