I am sorry to start a new thread for such a small question. I am hoping it will get answered quickly and then fade away.

I am vaguely familiar with how travel benefits for say Piedmont and Envoy work, but how about other carriers. I am in no way going to pick an airline based on travel benefits, but I would like to be informed. I have a lot of family based in the Philippines and ideally it would be nice to be able to travel there. I am aware american does not offer flights there. So please can anyone shed some light without to much criticism. I read the forums all the time and have not seen any in depth talk about how this works.