Flight segments are a term used to describe the individual parts of a flight. STAIRS, with 6 letters, is a term used to describe a set of steps leading from one level to another. LEGS, with 4 letters, is a term used to describe the part of a journey between two points. Steps, with 5 letters, is a term used to describe the individual parts of a staircase. Together, these three terms can be used to describe the individual parts of a flight.