(WHAS 11)--As if flying wasn't already expensive airlines are coming up with more reasons to make you pay.
Among the latest ideas basing your fare on how much you weigh.
That's being recommended in a study from a professor in Norway.
But not everyone thinks it's a good idea.
The study argues that reducing the weight on a plane by a little more than two pounds will result in fuel savings of more than three-thousand dollars a year.
The author proposes passengers self declare their weight when they book a ticket and those tickets be charged two dollars a pound.
The study appears in the Journal of Revenue and Pricing Management.
Samoa Air is already putting the per pound plan in motion.