"During a flight from New York to Paris and Vienna, airline employees and passengers fall in love. Cub stewardess Carol Brewster is attracted to copilot Ray Winsley, 1st-class hostess Donna Stuart is charmed by Austrian Baron Franz von Elzingen, and veteran flight attendant 'Bergie' Bergstrom is captivated by Walter Lucas, a shy Texan traveling tourist class. On land, however, the idealistic Carol learns of the copilot's past liaison with married Katy Rimard, materialistic Donna discovers that the baron is a jewel smuggler, and wary Bergie finds her Texan to be a recently bereaved widower. Despite these revelations, the affairs end happily. After Donna pledges fidelity, the baron surrenders to police. Lucas discloses that he is also a millionaire, and escorts Carol and Bergie aboard a chartered jet flown by Ray, intended as a honeymoon express."