such as a Norwegian company with Norwegian employees serving domestic routes in the United States Not quite. Norwegian Air Shuttle is operating international r

such as a Norwegian company with Norwegian employees serving domestic routes in the United States Not quite. Norwegian Air Shuttle is operating international routes to and from the US. Non-US airlines are forbidden under cabotage laws from flying domestic (i.e., from one location in the US to another location in the US) routes, and even from offering such flights with a connection in a second country -- for example, a US-based airline can fly you from New York to San Francisco, but Air Canada can't, and also can't offer New York to Toronto to San Francisco.