Looking at a bit of an odyssey in January - GRU, LIM, BOG, MEX, GDL, MTY - probably a few others mixed in also. I can do most of the Mexico/LAM stuff on Avianca and AeroMexico.

Question for the community - am I better to buy it all through AC or do a bunch of one-ways through the operating airlines? I'd love to have the AQD of course, but I have seen a few of the "senior" contributors around here (people I generally listen to!) talking about avoiding code shares whenever possible. I still don't understand why though.

Any input is valued.