The disclosure refers to an airplanes own mobility system. For supporting a passenger with reduced mobility on board an airplane and for simplifying as much as possible the use of a toilette, a mobility system for passengers with reduced mobility is provided. The mobility system includes an onboard toilette spatial unit having an entrance zone, an entrance door, and a toilette using zone with a toilette. Moreover, a movement device with a passenger carrying equipment is provided, which is moveable at least from the entrance zone to the toilette using zone and supported in the ceiling area. The passenger carrying equipment includes a seat device enabling a passenger a seat like position. For using the toilette, a passenger is movable back and forth with the movement device from the entrance zone to the toilette using zone.
