interactive graphic of airline fees. American Airlines ( AMR), Continental Airlines ( CAL), Delta Air Lines ( DAL), United and U.S. Airways Group ( LCC) reported multimillion dollar losses for the last quarter, leading to them to tack on a $10 surcharge to travel during the holidays as well as spring break, Easter and Memorial Day. Holiday fares are about 10% less than they were last year, but the folks at FareCompare.com say that seating capacity on flights to the 50 busiest cities the Wednesday before Thanksgiving is down 3.4%. Meanwhile, the ancillary costs for those who can get seats are hitting new altitudes. Anne Banas, executive editor of SmarterTravel.com, and her colleagues update their chart of domestic airlines fees daily. The chart has grown substantially larger as more services come with a price tag. "We built this chart in the early summer of 2008, when the airlines were introducing the first wave of checked bag fees," she says. "It's been over a year and not only are there more bag fees, but there's been an overall increase in fees across the board."