Hello, I don't typically fly a lot of routes with connections so I have a question about what happens when a flight delay on your first leg causes you to miss your connection. If its the same carrier, the carrier will rebook you without penalties, correct? What if they are separate carriers? In this instance, the carriers are Alaska and LAN. Does it make a difference if I purchase from AA.com vs. Expedia vs. purchasing separately on AlaskaAir.com and LanPeru.com? Thanks!