Originally Posted by
toothy
There are other factors too, such as if it is carrying lots of cargo, which can influence if the plane is breaking even or not.
exactly. (OP, there are threads discussing this already, btw. Do a search for "profitable and flights" and a ton of results will pop up.)
http://www.flyertalk.com/forum/miles...d-factors.html
http://www.flyertalk.com/forum/ameri...ntly-88-a.html