Five of the six major airlines in the United States plan to start charging coach passengers as much as $25 next month to check a second bag, the latest move in their quest to offset high fuel prices.
The new fee of $25 for a second bag is being levied by Continental, Delta, Northwest, United and US Airways. The low-fare carrier AirTran has announced that it will charge $10 for a second checked bag. Airlines have long levied fees for checking a third bag. Some carriers have recently increased those as well, and the fees on the major carriers now run as high as $100.
source: New York Times