|Vehicle||Alexander Dennis Enviro400 10.1m|
|Peak vehicle requirement||6|
|Night-time||No night service|
|Length||8 miles (13 km)|
|Journey time||35-53 minutes|
|Operates||05:45 until 00:15|
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 favourably by residents and did not proceed.
Upon being re-tendered, on 30 June 2007 it passed to Quality Line with new Alexander Dennis Enviro400s. It was the first double deck contract won by Quality Line. 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.
In 2016 a petition was launched calling for the route to run overnight.
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
- London Transport Country Area Routes 406-409 eplates.info
- Graeme Bruce, J; Curtis, Colin (1977). The London Motor Bus: Its Origins and Development. London Transport. p. 99. ISBN 0853290830.
- London Country Bus Preservation Page ampyx.net
- Bus Route Shake Up - Kingston & Surbiton | Surbiton.com
- Head Slams Plans To Extend 406 Bus Route Daily Echo 7 December 2001
- Aldridge, John (December 2006). "Quality Line wins first double-deck contracts". Buses. Ian Allan Publishing (621): 22.
- Richard, Craig (17 November 2016). "Stoneleigh woman petitions Sadiq Khan and Transport for London for 24-hour buses between Kingston and Epsom". Your Local Guardian.
- Route 406 Map Transport for London
- Media related to London Buses route 406 at Wikimedia Commons