A designated route followed by airplanes in flying from one airport to another WordNet 3.0 & Open English WordNet

In the United States, airways or air routes are defined by the Federal Aviation Administration in two ways: "VOR Federal airways and Low/Medium Frequency Federal airways"These are designated routes which aeroplanes fly to aid in navigation and help with separation to avoid accidents. Wikipedia

An aerial route taken by airplanes Wikipedia Disambiguation

A designated travel path for aircraft Wikipedia Disambiguation

A regular course followed by aircraft. OmegaWiki

A designated route used by commercial aircraft when flying from one airport to another. Wiktionary

An airway, the predefined route of travel for an aircraft or spacecraft. Wiktionary

Predefined route of travel. Wiktionary (translation)

An airplane route. Wiktionary