How much luggage can you take on a plane?

It depends on the airline which you are flying. Also the other factors that determine the weight and the number of pieces (hand baggage and check-in) will depend on whether you are traveling in a domestic route or an international route. Long distance international travelers are permitted to carry more than the domestic passengers. Business class and First class passengers can also carry more than the passengers traveling Coach (Economy) class. Before you start to pack, it is always good to call up the Airline support or check in the Airline's website.