A transport seat system, in particular aircraft seat system, includes at least one first seat, with at least one mounting module that is configured, for the purpose of mounting the seat, to be connected on a guide rail, and with at least one second seat, which is arranged behind the first seat with at least one mounting module that is configured, for the purpose of mounting the seat, to be connected on the same guide rail, the two seats being configured, for the purpose of implementing a usage position and a stowage position of at least one of the seats, to be displaced on the guide rail relative to one another, wherein
at least one mounting module of at least one of the seats includes a seat foot unit, which is movably supported relative at least to a portion of the mounting module.