noun
foreign route; ocean route
Refers to a shipping or air route that connects Japan with foreign countries, as opposed to domestic routes (内国航路). Commonly used in maritime and logistics contexts.
See also: 内国航路
この港は外国航路の拠点として重要だ。
This port is important as a hub for foreign routes.
外国航路に就航する船が増えている。
More ships are being put into service on ocean routes.