Where does this definition of air route come from?
This entry for air route is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does air route appear elsewhere on Lughet?
Yes — air route appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.