Plain English Meaning

A pre-defined highway in the sky, published on charts, that runs between two navigation stations. Pilots flying under instrument rules often follow these routes from one station to the next, staying within a corridor 4 miles wide on each side of the line.

Full Definition

A class of airway established by the FAA in the United States, based on a centerline that extends from one navigation aid (or intersection) to another navigation aid specified for that airway. A Federal airway includes the airspace within parallel boundary lines 4 nautical miles to each side of the centerline, and unless otherwise specified, extends from 1,200 feet above the surface up to but not including 18,000 feet MSL. - based on are designated as '' and identified with a 'V' prefix (e.g., V23).