London Buses route 346 is a Transport for London contracted bus route in London, England. Running between Upminster Park Estate and Upminster, it is operated by Blue Triangle.
Route 346 commenced operating on 26 September 1988 between Upminster Station and Corbets Tey Huntsman & Hounds via Station Road - St Mary's Lane - Cranham - Front Lane - Roseberry Gardens - Waycross Road - Lexington Way - Queen's Gardens - Moor Lane - Front Lane - St Mary's Lane - Station Road - Upminster Station - Corbets Tey Road as a Monday to Saturday service. Operating by London Transport from their Romford (NS) garage using MCW Metroriders. The route was introduced to replace route 246A.
On 29 September 1990, the route passed to County Bus operating from their Grays garage (GY) using MCW Metroriders and the Corbets Tey spur was withdrawn.
On 28 September 1996, A new loop working introduced at Upminster Park Estate and experimental Sunday service was introduced.
On 28 September 1997, the Sunday service was withdrawn.
On 29 September 2001, the route was retained by Arriva Southern Counties with brand new Wright Cadet bodied DAF SB120s introduced.
On 30 September 2006, the route was retained by Arriva Southend.
In 2011, the route was retained by Arriva Kent Thameside with Plaxton Pointer 2 bodied Dennis Dart SLFs introduced.
On 27 June 2015, Alexander Dennis Enviro 200 Darts were introduced.
On 1 January 2016, the Arriva group restructured its bus operations, which included the transfer of route 346 from Arriva Kent Thameside to Arriva London.
On 26 November 2016, the route was converted to full Alexander Dennis Enviro 200 Dart operation.
Route 346 operates via these primary locations:
- Waycross Road
- Upminster Park Estate
- Upminster Station