Disclosed is a passenger seat, especially an airline passenger seat, comprising seat components such as a seat part, a backrest, and an armrest (3), at least one of which is movably disposed relative to the other seat components to adjust the position, and a partition (9, 11) that can be transferred between an operational position in which the same extends in a lateral shielding area of the seat and a non-operational position in which the same unblocks the shielding area. The partition is composed of several wall parts (9, 11) which extend in the shielding area in the operational position and interact via a guiding device (43, 45) such that the movement of one wall part (9) during the transfer between the non-operational and the operational position entrains another wall part (11).