Air routes are the pathways taken by airplanes through the sky. There are many synonyms for air route including flight path, aerial itinerary, aviation corridor, skyway, flight track, and airway. Flight paths refer to the specific trajectory an aircraft takes from its point of departure to its destination while airway and skyway denote a more specific section of the air route. Aviation corridor and flight track are more general terms that encompass the entire journey from start to finish. No matter what synonym is used, all refer to the journey taken by an airplane through the sky.