How much does U.S. Airways charge for each bag checked on a domestic flight?

• up to $100
  Not only does U.S. Airways charge $15 to $100 for each bag checked on a domestic flight, there are additional fees for bags weighing more than 50 pounds (22.6 kilograms).
• up to $125
  Not only does U.S. Airways charge $15 to $100 for each bag checked on a domestic flight, there are additional fees for bags weighing more than 50 pounds (22.6 kilograms).
• up to $150
  Not only does U.S. Airways charge $15 to $100 for each bag checked on a domestic flight, there are additional fees for bags weighing more than 50 pounds (22.6 kilograms).