A method for determining a position of a mobile terminal while using an aircraft is provided. Before using the aircraft, orbital data for the navigation satellites of the navigation satellite system is loaded onto the mobile terminal. A planned flight route can then be identified by the mobile terminal with reference to a boarding pass. While using the aircraft, an application on the mobile terminal correlates a current time, the flight route of the aircraft, and the positions of the navigation satellites as ascertained with reference to the orbital data of the navigation satellites to determine which navigation satellites can be received at the current time, and these are then compared with navigation satellite signals that are actually received by the mobile terminal to derive a position of the mobile terminal and to establish whether the mobile terminal is actually located in the aircraft.