You are allowed one suitcase and one carry-on bag. This is because luggage space on buses is often limited. Keep your carry-on light and small. Your carry-on must fit under the seat or in the overhead compartment of the plane. Make sure your luggage is labeled with your name, address and phone number! S.B.S will send each enrolled person two luggage tags to use. Most airlines restrict the checked bag to 44 lbs. So, it is a good idea to travel light. Some airlines charge additional fees for luggage. These fees, if they occur, are never included in the price of the program. They are always out of pocket expenses. You should also check directly with your airline to determine any other baggage restrictions or requirements.