Originally Posted by PDXPremier

Bingo! I agree 100%...the problem is the fact that UA and AA aren't matching and fewer people are interested in collecting more SkyPesos. Also, there is the issue of entrance fees (except LIM) which really need to be calculated into the cost of the ticket, thus bringing the cpm down....it's too much of a hassle since a number of domestic MRs are consistently down in the 3 cpm range depending on your city of origin...for example, I can almost always book a PDX-MCI one way on UA for $115, route via SEA and IAH, get around 3 cpm, and potential upgrades to F.