Hi Friends, Question for you. As most know, USAirways is merging with AA and leaving Star Alliance after March 30. I have USAirways miles that I'd like to retain. I need to book a trip to Europe in the next few days. The trip will take place in May (after USAirways joins Oneworld). I need to know if I should book my Europe flights with Oneworld airlines (and use my USAirways number) or book with Star Alliance Airlines (and obviously still use my US Airways number). You put your frequent flier number in when you purchase tickets but it won't post to my account until after the flight is taken. I'm happy to do either Oneworld or Star Alliance I just want to know. Thanks!