[2] The origins of Busways can be traced to 1942 when Dick Rowe commenced a hire car service from Rooty Hill to Plumpton.

[4][11] In September 2003, Busways purchased the Great Lakes and Mid North Coast services of King Brothers from its administrator.

[15] Between 2014 and 2015, Busways attempted to venture overseas by submitting a bid for the Bulim Bus Package in Singapore.

[2] Since 2005, Busways' services in the Blacktown area have formed part of Sydney Bus Region 1, held in partnership with Westbus and Hawkesbury Valley Buses.

In October 2013, Busways after winning the tender for Sydney Bus Region 1, took over the operation of services in the St Marys, Penrith, Windsor and Richmond areas from Hawkesbury Valley Buses and Westbus.

Busways commenced operating Region 7 on 9 January 2022 as part of an eight-year contract, taking over from State Transit.

[23][24] The Central Coast has services provided under the Outer Metropolitan Bus System Contract Region 6.

This contract with the NSW Government covers a broad area that stretches from Patonga and Wagstaffe in the south through to Swansea and Morisset in the north; and Dooralong and Mangrove Mountain in the west to Terrigal and MacMasters Beach in the east.

[25] In September 2003, Busways purchased the services of King Brothers on the Mid North Coast from its administrator.

[12][13] Busways provides services throughout Grafton, Kempsey, Wauchope, Laurieton, Coffs Harbour, Port Macquarie, Yamba, Bulahdelah, Heatherbrae, Macksville and Raleigh.

In July 2020, Busways took over Adelaide's Outer South network from SouthLink, including the Lonsdale and Seaford depots.

Since 2010, the blue and white Transport for NSW livery has been applied to the Sydney and Central Coast fleets.