A passenger-carrying aircraft, especially one of a fleet operated by an airline.

plural of airliner

plural of airline

company that flies passengers in its planes

flag carrier (An airline company that is registered in a given country)

A unit in the point system created by many airlines as part of their frequent flyer programs, which can be redeemed for free flights and other rewards. Traditionally airlines have awarded one airline mile per mile flown, but increasingly airline miles have been awarded based on other factors such as ticket price.

plural of airline seat

A style of seat found in aircraft, also in some trains.

plural of airline bag

A small carry bag designed for in-cabin use during a plane journey, especially one emblazoned with an airline logo and fitted with a shoulder strap.