Tourism and air transport

While scheduled airlines calculate their load factor at 50% of the plane's seats, the tour operators usually calculate a seating density of 85–90%. The reason for this is that the tour operator is almost sure of selling the seats long before the departure time because he does not launch the package before he is certain, through a market study, that there will be a good market for that type of package. He also counts, though to a limited extent, on the possibility of cancelling flights which he cannot sell.