Loudoun County Transit provides fixed routes and on-demand/paratransit bus service.

The service utilizes buses that are permitted to travel on the express lanes of the Dulles Toll Road, unlike normal traffic.

[2] Loudoun County Transit buses also operates local bus service through Sterling, Ashburn, and Leesburg, providing connections to Silver Line metro stations.

Virginia Regional Transit only operates the Purcellville Connector that is part of local bus service.

LC Transit uses long buses (seating around 50) with white and metal trim and display the LC Transit logo,[3][4] while VRT buses are short (seating around 15) and have a predominantly white and maroon color scheme, frequently without a logo.