Known as Vint Hill Road, the state highway runs 9.26 miles (14.90 km) from U.S. Route 15 and US 29 at Buckland east to SR 28 near Bristow.

SR 215 forms part of a connection between Warrenton and Manassas.

SR 215 begins at an intersection with US 15 and US 29 (Lee Highway) at Buckland just west of the Fauquier – Prince William county line.

The state highway heads southeast parallel to the county line, then passes to the north of the Vint Hill Village community as it curves east and enters Prince William County.

The state highway reaches its eastern terminus at SR 28 (Nokesville Road) near Bristow.