Does elite status with your preferred airline or hotel chain seem elusive this year? The good news is, year-end promotions offering elite fast-track and bonus points are back. The bad news is, they are fewer and less generous than in the past.

That, of course, is hardly surprising, with all the ills that have befallen the travel industry in recent months. What is surprising is the diversity of those deals, depending on the loyalty program to which you belong. No two of them are exactly alike — except that most require registration and end Dec. 15, so holiday travel is not covered. American Airlines is offering its customers who fly a round trip between the United States and Britain a free companion ticket for a future trip to either Britain or the Caribbean…