According to the AAA, 34.8 million Americans will have travelled at least 50 miles from home over Memorial Day weekend, a 0.9% dip from 2012. Most -- 31.2 million -- will have taken the car. But the auto club predicted fewer people will have flown -- 2.3 million, an 8% dip compared to last year. Dissatisfaction with the airlines, along with the fluctuating economy are key reasons for the predicted drop in Memorial Day weekend travelers, AAA says.