Checked baggage is luggage delivered to an airline or train for transportation in the hold of an aircraft or baggage car of a passenger train. Checked baggage is inaccessible to the passenger during the flight or ride, as opposed to carry-on baggage.
This baggage is limited by airlines with regard to size, weight, and number, usually dependent upon the fare paid, or class of ticket. Baggage exceeding the limits is regarded as excess baggage.