Q. If I am checking a piece of luggage that weighs over 50 pounds, will I pay the airline's first checked bag fee in addition to its "overweight" fee, or does just one fee apply?
A. Unfortunately, you'll end up paying both fees, each way. Depending on the airline you fly, it may be cheaper to pack your belongings in two bags rather than pay the overweight fee on just one bag. You might also look into shipping the contents of your bag via FedEx Ground, which is sometimes cheaper than paying airline bag fees.