Motorbus operations began in 1909 with a fleet of six buses, later restarting in 1921 and expanding alongside the city's trolleybus network.

The trolleybus network was officially abandoned on 31 October 1964, having been gradually replaced by fleets of Leyland Atlantean motorbuses.

[7] To comply with the Transport Act 1985 and ensuing deregulation of the bus industry, on 27 July 1986, Kingston upon Hull City Council transferred the assets of KHCT to a new legal entity, Kingston upon Hull City Transport Ltd.[8] Eventually faced with escalating financial losses and increased 'bus wars' with East Yorkshire Motor Services (EYMS) and local independent bus operators, in December 1993, Kingston upon Hull City Council sold KHCT to Stockton-on-Tees based Cleveland Transit,[6][9][10] with KHCT's employees taking a 49% stake in the company.

[22] In the same year, Stagecoach in Hull introduced the Frequento network, with routes serving Orchard Park, Bransholme and later Sutton-on-Hull being operated to more frequent timetables using new low-floor buses.

[27] The strike was scheduled to last until 29 December, however negotiations between Stagecoach management and Unite representatives involving Acas resulted in the strike suspended on 7 November and formally ended on 11 November, with workers receiving a backdated 20% pay rise of up to £13 an hour.

[35] Retendering by the East Riding of Yorkshire Council in 2019 saw Stagecoach in Hull gain the contract to operate a seasonal park and ride service in Bridlington from East Yorkshire, also launching a bus service operating from Hull to Bridlington three times a day.