Passenger seat system for a cabin of a means of transportation, having: - a plurality of passenger seats which are disposed behind one another and have in each case one seat frame that has a holding section for receiving seat fittings (10, 12) and a plurality of supporting elements (14, 16) for coupling to a floor; and - for each passenger seat at least one variable-position device (18, 18a, 18b, 27), which for coupling a supporting element (14, 16) to a seat rail is spaced apart from the holding section and which has a base and a retaining device (21, 34) that is able to be releasably fastened to the base and able to be coupled to a supporting element (14, 16) of the seat frame; wherein the base has a bearing surface for placement on the seat rail in the cabin of the means of transportation, and at least one locking device for locking the base to the seat rail; wherein the base has a holding device for releasably receiving the retaining device (21, 34); wherein the variable-position device (18, 18a, 18b, 27) is configured to lock the retaining device (21, 34) selectively in a first position or a second position on the holding device, or to release the retaining device (21, 34), and, when the retaining device (21, 34) is released, to allow movement of the retaining device (21, 34) between the first position and the second position; wherein the base has a first end and a second end, on each of which a stop (38, 40) for defining the first position and the second position is present; and wherein the spacing between the first position and the second position of the variable-position devices (18, 18a, 18b, 27) on each passenger seat successively increases from a frontmost passenger seat to a rearmost passenger seat. - a plurality of passenger seats which are disposed behind one another and have in each case one seat frame that has a holding section for receiving seat fittings (10, 12) and a plurality of supporting elements (14, 16) for coupling to a floor; and - for each passenger seat at least one variable-position device (18, 18a, 18b, 27), which for coupling a supporting element (14, 16) to a seat rail is spaced apart from the holding section and which has a base and a retaining device (21, 34) that is able to be releasably fastened to the base and able to be coupled to a supporting element (14, 16) of the seat frame; wherein the base has a bearing surface for placement on the seat rail in the cabin of the means of transportation, and at least one locking device for locking the base to the seat rail; wherein the base has a holding device for releasably receiving the retaining device (21, 34); wherein the variable-position device (18, 18a, 18b, 27) is configured to lock the retaining device (21, 34) selectively in a first position or a second position on the holding device, or to release the retaining device (21, 34), and, when the retaining device (21, 34) is released, to allow movement of the retaining device (21, 34) between the first position and the second position; wherein the base has a first end and a second end, on each of which a stop (38, 40) for defining the first position and the second position is present; and wherein the spacing between the first position and the second position of the variable-position devices (18, 18a, 18b, 27) on each passenger seat successively increases from a frontmost passenger seat to a rearmost passenger seat.