I'm not sure where to post this so hopefully this is the proper forum. This summer I am traveling to NYC and Chicago. I mostly just fly Alaska Airlines but their fares and times aren't jivin with me right now. So I might have to take other airlines. Normaly I do a paid upgrade if it is available at the ticket counter. Are there other airlines that do this besides Alaska? I know that America West does but not sure of the others. I have tried looking on the other airlines website but it is such a mess trying to navagate through it all. Any help would be super.

Thanks,
Greg