Northwestern Trailways (of Washington) is a member of Trailways Transportation System, a network of 70 independent bus companies that have entered into a brand licensing agreement.
Northwestern Trailways based in Spokane, Washington, U.S., is an intercity common carrier of passengers by bus serving Washington and Idaho. Northwestern Trailways Spokane, WA Trailways Transportation System The Trailways Transportation System is a US-based network of approximately 70 independent bus companies that have entered into a brand licensing agreement. 
