CK Transit (branded as Ride CK) provides the conventional bus transportation in Chatham-Kent, Ontario, Canada. There are five local bus routes within the urban boundaries of the old City of Chatham. Routes 1 through 4 provide services every 30 minutes Monday through Saturday, while route 5 runs on a 45-minute basis. For rail passengers, bus route 3 stops nearest Via Rail Chatham station, at the intersection of Park Avenue West and Pine Street. CK Transit also provides bus service to outlying communities in Chatham-Kent. In October 2007, Route A, linking Chatham, Wallaceburg and Dresden, with four trips Monday through Saturday, was introduced. Interurban service was expanded to include Route D, linking Chatham to Tilbury and Wheatley in January 2009, and Route C, serving Blenheim and Ridgetown in January 2010. All urban and inter-urban routes stop at the Downtown Transfer Terminal at 100 Wellington Street West in Chatham. Chatham Specialized Transit Service is a personalized curb-to-curb transportation service for persons who are unable to board the Chatham Conventional public transit system. In March 2020, CK Transit launched a pilot project in which it offers on-demand transit in the urban area. A dedicated app for this service was launched in December 2021. As of 2024, CK OnRequest is offered on evenings and Sundays in Chatham and all week in Wallaceburg.

Urban routes

Inter-urban routes