| Operator
|
Route
|
Year
|
Date
|
Service changes
|
 Known as prior to 10 May 2004
|
Yishun ↺ Yishun Ave 5 & Ave 1
|
1996
|
7 July
|
Introduced between Yishun Int and Yishun Ave 5/St 81 (Loop) with the integration of Services 801 and 805.
|
| 1999
|
TBC
|
Last bus extended to 0050 hrs daily.
|
811Yishun ↺ Yishun Ave 5 & Ave 1 811AYishun → Yishun Ave 9
|
2000
|
TBC
|
811AIntroduced from Yishun Int to Yishun Ave 9 (Opp Blk 245) during morning peak hours on weekdays.
|
| Yishun ↺ Yishun Ave 5 & Ave 1
|
2007
|
TBC
|
811ADiscontinued with the closure of ITE Yishun Campus.
|
| 2009
|
1 June
|
Designated wheelchair-accessible bus service (WAB).
|
| 2011
|
23 October
|
Amended to ply Yishun Ave 3 and Yishun Ring Rd.
|
| 2013
|
TBC
|
Last bus extended to 0055 hrs daily.
|
811Yishun ↺ Yishun Ave 5 & Ave 1 811AYishun → Yishun Ave 5
|
28 October
|
811AIntroduced from Yishun Int to Yishun Ave 5 (Blk 145) during evening peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch. 
|
| 2015
|
14 March
|
Amended to Yishun Temp Int.
|
 (Current)
|
2018
|
18 March
|
Operations transferred to SBS Transit.
|
811Converted to Townlink service.
|
811AExtended to terminate at Yishun Ave 5 (Blk 151).
|
| 12 August
|
811Converted to Feeder service.
|
811Terminating trip renumbered from 811E to 811T.
|
| 2019
|
8 September
|
Amended to Yishun Integrated Transport Hub.
|
| 2022
|
23 January
|
Amended to skip Yishun Integrated Transport Hub towards Yishun Ave 1 (South Loop) with the introduction of Service 801.
|