An air corridor is a designated route used by aircraft to travel from one location to another. The term air corridor is commonly used in the aviation industry to describe a narrow strip of airspace where planes can safely fly without any obstructions. However, there are several synonyms that can be used to refer to an air corridor. These include a flight path, an aerial route, an aviation zone, an airway, and a sky highway. These synonyms can help provide more descriptive language when discussing the movement of aircraft and navigating through the skies.