London Buses route 406

London Buses route 406 is a Transport for London contracted bus route in London and Surrey, England. Running between Kingston and Epsom, it is operated by Quality Line.

History
Route 406 started in 1920 as route S6 between Kingston and Redhill, and was renumbered as 406 in 1924. In 1957, the second prototype AEC Routemaster ran on route 406 between Redhill and Kingston. It was later shortened to operate just between Kingston and Epsom. Following the Privatisation of London bus services the route became part of London Country South West.In 1991,the route was diverted at Surbiton Hill Road via Surbiton Station to Kingston.

On 27 January 2001 it became a tendered Transport for London route with London United's Hounslow garage taking over operation. A proposal to extend the 406 to Teddington in 2001 was not received favouably by residents and did not proceed.

Upon being re-tendered, on 30 June 2007 it passed to Quality Line with new Alexander Dennis Enviro400s. The route was diverted via Surbiton Hill Road instead of Surbiton station at the same time.Thus the route was restored to its original routing.

Current route
Route 406 operates via these primary locations:
 * Kingston Cromwell Road bus station for Kingston station
 * Surbiton Hollyfield School
 * Tolworth Broadway
 * Tolworth station
 * Ewell High Street
 * High Street for Epsom station
 * Epsom Clock Tower or Hospital