Originally Posted by snake
According to CO's recent SEC filings the Mainline CASM (Cost per Available Seat Mile) for the first and second quarter 2006 is around $.1035-$.1072, so you can't say that you ain't gettin' what you paid for.*
* Excluding the "valuable" NonePass® miles.

Yeah, but that is not really responsive - assume I am the lowest fare on the plane and without me the seat would fly empty. What is the MARGINAL cost of flying me and my bags per mile per pound?