Thanks all a lot for your answers and explanations
As I have already asked about the AA bases, I would only like to ask if the information below is correct or not. It's about the American Eagle bases this time, and I have found it somewhere in the net:
DFW: ERJ, CRJ, ATR
LAX: ERJ
MIA: ATR, ERJ
SJU: ATR
BOS. ERJ
ORD: ERJ, CRJ
LGA: ERJ
Thanks a lot again
