[bombcar]

Reducing convenience - replace as many possible flights between city pairs with as few giant jumbos as possible. Instead of many many flights between LAX and CHI just have a few A380s in cattleclass.

Saves a bit on fuel and a bunch on other costs. But people would be unhappy about it.

[rsj_hn]

Larger planes are more efficient, but then ridership drops off when you make things less convenient so it's harder to fill the planes. I'm pretty sure the airlines are already maximizing this and are not optimizing for passenger convenience :)