I having been flying for ages but since I am traveling more now are more interested in milies and so on. Us Airways/United are carriers I could be flying espcially when delta prices maybe high, since Us Air and United usually flights from Mississippi to were I want to go. I am traveling on US Air this summer, wanted to travel delta but but couldnt since flights didnt work out. Should I sign up and use United? I am also worried they could becoem defunct in the next couple of years. Next summer we are going europe on Air France, so I home to earn lots of sky milies then.

Thanks Again,
Matt