Luggage restrictions refer to the rules set by airlines regarding the size, weight, and number of bags passengers can bring on board. Each airline has its own guidelines, which often include limits on carry-on bags and checked luggage. For example, a typical carry-on bag must fit in the overhead compartment or under the seat in front of you, while checked luggage usually has a weight limit of around 50 pounds. These restrictions are important for safety and efficiency during flights. Passengers should always check their airline's specific luggage policies before traveling to avoid unexpected fees or issues at the airport. Being aware of these rules can make your journey smoother and more enjoyable.