London Buses route 109

109
Abellio London Enviro400 MMC in Croydon in January 2015
Overview
Operator	Abellio London
Peak vehicle requirement	25
Night-time	Night Bus N109
Route
Start	Croydon
Via	Thornton Heath Pond Norbury Streatham
End	Brixton

London Buses route 109 is a Transport for London contracted bus route in London, England. Running between Croydon and Brixton, it is currently operated by Abellio London using 25 buses.

Route 109 commenced operating on 8 April 1951 as a circular Purley - West Croydon station - Streatham - Elephant & Castle - Victoria Embankment - Westminster - Kennington - Norbury - Croydon - Purley route operating in both directions. It replaced tram routes 16 and 18, operating from Brixton and Thornton Heath garages with AEC Regent III RTs.

From 16 October 1957 it ran between Purley High Street and Victoria Embankment. On 23 January 1966, the Sunday service was withdrawn with the exception of a few early morning journeys operated by Thornton Heath Garage. On 31 October 1970, these journeys were converted to One Person Operation (OPO) using single-deck AEC Swift (SMS class), with subsequent conversion to double-deck Daimler Fleetline (DMS) operation from 23 March 1974.

On 19 July 1975, crew-operated Daimler Fleetlines were introduced at Brixton Garage on 133, with vehicles spare on Saturday converting Route 109 from RTs on that day.

From 23 May 1976, the Monday to Friday allocation from Brixton Garage was converted to AEC Routemaster operation, with Thornton Heath following suit on 3 October 1976, ending all RT operation on the route.

The weekday Brixton Garage allocation was converted to Daimler Fleetline operation on 4 March 1978, with Thornton Heath following suit on 27 August 1978.