Don’t look now, but 2008 is quickly coming to an end, and with the new year, we can expect to see more changes to major frequent flier programs. In fact, United Airlines has already released a laundry list of changes that will affect its Mileage Plus program in 2009, and at least some of the changes should make members happy (well, “Elite” members anyway).

United Airlines will reinstate the 500-mile minimum accrual for elite members. Not only will elite members receive at least 500 miles on 2009 flights regardless of distance, they’ll also have miles “applied retroactively to flights between July 1, 2008, and December 31, 2008. For elite members who flew United flights of less than 500 miles during that timeframe, all affected mileage balances and bonuses and earned upgrades will be adjusted by the end of the year to ensure that your elite status is correct for 2009.”

Along with reintroducing the 500-mile minimum, United Airlines will reduce certain mileage requirements on international business and first upgrades. In addition to miles, though, a co-pay will be required to obtain the upgrade. The carrier will also expand its international upgrade program in July of 2009. This will “ensure that all Mileage Plus members have a chance to experience the new international first and business class.”

Awards levels will also be shifting with the new year. To get a look at these changes and to get more details on United Airlines’ Mileage Plus Program, visit United Airlines Annual Changes — and stay tuned for details on more changes to frequent flier programs as 2009 approaches.