On their website it says, "Children 15-17 may travel unaccompanied on non-stop and connecting flights without US Airways assistance." but it also says, "Children ages five to 17 years of age may travel without a parent or legal guardian as unaccompanied minors on nonstop flights only." So, can a 15 year old can fly alone, without paying the unacompanied minor fee, on connecting flights?