USA Today
Several major airlines maintain unpublished programs that, in some cases, operate as de facto "top tiers" to existing frequent-flier plans, Laura Bly reports. And they are very tight-lipped about them, although the new George Clooney movie,
"Up in the Air," promises to shine a little light on them. In this clip, actress Vera Farmiga, upon seeing that Clooney is a member of American Airlines' ConciergeKey program, says, "Oh, my God, I wasn't sure this actually existed." The programs are generally available only to fliers who pay upwards of $50,000 a year on full-fare tickets -- …