A sidewall integrated armrest includes a plurality of armrest segments upon which an arm may rest. Each of the plurality of armrest segments are supported by a structure proximate a sidewall and adjacent to but not supported by a seat. Each of the seats is disposed in a line along the sidewall and spaced apart at a seating pitch. The armrest further includes at least one armrest spacer disposed between the plurality of armrest segments. The at least one armrest spacer has a combined length between the plurality of armrest segments to establish a pitch between the plurality of armrest segments substantially equal to the seating pitch.