The present invention relates to a seat (1) for an aircraft passenger comprising a back part (2) and a sitting part (3), said seat (1) being turned in a first direction so that when a passenger is sitting in said seat (1) he is turned in said first direction, said seat (1) being configured so as to perform a recline movement along a respective recline axis (A) between a sitting position and a recline position, and vice versa, said seat (1) being characterized in that it is configured in such a manner that the back part (2) and the sitting part (3) are apt to perform a translation movement along a translation axis (B), wherein said translation axis (B) is not parallel to said recline axis (A).