Companies Delta Air Lines, Inc. (DAL) & Alaska Air Group, Inc. (ALK) Soar In Timely Flights, Southwest Airlines Co (LUV) Falls: Phil LeBeauBy Solon Harmony B. DolorJuly 9, 2014 Delta Air Lines, Inc. (NYSE:DAL) and Alaska Air Group, Inc. (NYSE:ALK) are flying high in timely flights while their peer…