A connecting flight is a type of flight that requires passengers to change planes in order to reach their final destination. The two crossword solutions for the term 'connecting flight' are 'STAIRS' and 'STAIRCASE'. STAIRS refer to a set of steps leading from one level of a building to another, while a STAIRCASE is a larger structure consisting of several flights of STAIRS connected by landings. Both terms can be used to describe the process of changing planes during a connecting flight.