When you arrive at the airport, the airline will allow you to load a maximum of two pieces of luggage for free... you would need to pay for any additional luggage to be transported by the airline. (Luggage weighing more than 50 pounds per suitcase might also require a fee.)
You can... check (have the airline transport)... up to two pieces of luggage without charge. You 'check' your luggage when you 'check-in' at the airport.
Student or Learner