The system has many connections to other transit agencies of Central Maryland, Washington, D.C., Northern Virginia, and south-central Pennsylvania (Hanover, Harrisburg, and York): WMATA, Charm City Circulator, Howard Transit, Connect-A-Ride, Annapolis Transit, Rabbit Transit, Ride-On, and TransIT.
Bus service in the city is operated by the WMATA Metrobus through several lines along US 1 and Maryland Route 500 (Queens Chapel Road).