Used both as a noun (air route) and adverbially (by air). Common in news reports about aviation, travel, and logistics.
Forms
空 (sky, air) + 路 (route, road)
Common collocations
- 空路で: by air
- 空路の開設: opening of an air route
- 空路が乱れる: air routes become disrupted
- 空路を利用する: to use the air route
Related words