Main Article: Withdrawn Bus Services
This article covers defunct basic* bus services that were discontinued between 1 Jan 1981 and 31 Dec 1994. For withdrawn basic bus routes on or after 1 Jan 2010, you may refer to the main article linked above.
List of Defunct Basic Bus Services*
Only trunk and feeder bus services discontinued between 1981 & 1994 are included in this article. Service numbers in italics were reused for existing bus services.
For defunct trunk, feeder and Express bus services discontinued between 1995 & 2009, refer to this article.
Defunct Trunk Services
| Service | Route | Period of Operations | Remarks |
| 1 | Changi Village ↔ Delta | 11 Apr 1971 – 4 Nov 1989 | Day service on weekdays & Saturdays, partially replaced by Service 14 |
| 3 | Bedok ↔ Jurong East | 3 Feb 1974 – 5 Jan 1991 | |
| 4 | Tampines ↔ St. Michael’s | 11 Mar 1979 – 22 May 1993 | Merged with Services 21 & 67 |
| 6 | Bedok ↺ Nth Bridge Rd | 11 Jul 1977 – 26 Nov 1983 | Daily semi-express service, merged with former Service 3 |
| 8 | Bedok ↺ Marina Ctr | 26 Feb 1979 – 4 Nov 1989 | Semi-express day service on weekdays & Saturdays |
| 11 | Somapah ↔ New Bridge Rd | 11 Apr 1971 – 22 Oct 1988 | Partially replaced by Service 12 |
| 12A | Bedok Sth Ave 3 → Nth Bridge Rd (AM) Hill St → Bedok Sth Ave 3 (PM) |
31 Dec 1979 – 31 Aug 1984 | Peak hour one-directional service on weekdays |
| 15 | Marine Parade ↺ Shenton Way | 22 Jun 1975 – 15 Sep 1984 | Merged with Service 196 |
| 17 | Changi Village ↔ Prince Edward | 22 Feb 1981 – 7 Apr 1984 | Day service on weekdays & Saturdays |
| 19 | Siglap Rd → Prince Edward (AM) Prince Edward → Siglap Rd (PM) |
1979 – 8 Aug 1981 | Peak hour one-directional service on weekdays & Saturdays |
| 20 | Bedok ↔ Ghim Moh | 11 Apr 1971 – 4 Nov 1989 | Partially replaced by Service 100 and new Service M2 |
| 21 | Chai Chee ↔ Commonwealth Ave | 11 Apr 1971 – 14 Nov 1981 | |
| 22 | Chai Chee ↔ Tg Berlayer | 11 Apr 1971 – 21 Apr 1984 | |
| 28 | Tampines ↔ New Bridge Rd | 4 Sep 1983 – 28 Nov 1992 | Partially replaced by Service 2 |
| 41 | Bedok ↔ Bukit Merah | 11 Apr 1971 – 6 Apr 1991 | Merged with Service 197 |
| 44 | Chai Chee ↔ Bukit Merah | 3 Feb 1974 – 14 Sep 1985 | Partially replaced by Service 33 |
| 45 | Chai Chee ↔ Tg Rhu | 11 Apr 1971 – 26 May 1984 | |
| 46 | Lor 1 Geylang ↺ Kallang Pk/Natl Stadium | 1 Apr 1978 – 10 Nov 1981 | |
| 50 | Eunos ↔ Bukit Merah | 11 Apr 1971 – 5 Jan 1991 | |
| 53 | Kaki Bukit ↔ Alexandra Hosp | 3 Feb 1974 – 19 Feb 1983 | |
| 54 | Hougang (Sth) ↺ Jln Eunos | 29 Dec 1985 – 21 Mar 1987 | Merged with Service 51 |
| 55 | Sth Canal ↺ Mei Chin Rd | 11 Feb 1980 – 17 Dec 1988 | Merged with Service 195 |
| 57 | Buona Vista → Changi Airport (AM) Changi Airport → Buona Vista (PM) |
25 Jun 1983 – 18 Apr 1987 | Peak hour one-directional service on weekdays & Saturdays |
| 57 | Bishan ↺ Sin Ming Ave | 22 Aug 1988 – 2 May 1992 | Replaced by new Feeder Service 410G/410W |
| 58 | Bishan ↺ Marina Ctr | 18 Jan 1987 – 1 Sep 1990 | Merged with Service 56 |
| 60 | Shenton Way ↺ Circuit Rd | 16 Aug 1976 – 25 May 1991 | Day service on weekdays & Saturdays |
| 63 | Bukit Merah ↔ MacPherson | 11 Apr 1971 – 14 Nov 1981 | Merged with Service 44 |
| 71 | Old Upp Thomson ↔ Lor 1 Geylang | 11 Apr 1971 – 2 May 1992 | Partially replaced by new Service 70X during off peak periods daily |
| 72 | Serangoon ↺ Tg Rhu Rd | 11 Apr 1971 – 2 May 1992 | Partially replaced by Services 76 & 158 |
| 76 | Jurong East ↺ Clementi | 24 Nov 1981 – 12 Mar 1988 | Replaced by Service 99 |
| 77 | Ang Mo Kio ↺ Bendemeer Rd | 17 Aug 1980 – 15 Mar 1986 | Replaced by former Service 162 |
| 78 | Clementi ↺ Queensway | 17 Nov 1980 – 26 Feb 1983 | Peak hour service on weekdays & Saturdays |
| 79 | Jurong East ↺ Nth Bridge Rd | 27 Feb 1983 – 23 Jun 1984 | Merged with Service 147 |
| 79 | Jurong East ↔ Marina Ctr | 16 Jun 1985 – 17 Dec 1988 | Merged with Service 97 |
| 80 | Upp Changi ↔ Prince Edward | 11 Apr 1971 – 22 Jun 1985 | |
| 83 | Punggol ↔ New Bridge Rd | 11 Apr 1971 – 28 Mar 1992 | Merged with Service 147 |
| 85 | Hougang (Sth) ↺ Sims Ave | 3 Feb 1974 – 5 Jan 1991 | |
| 86 | Hougang (Sth) ↺ Shenton Way | 13 Jun 1977 – 17 Dec 1983 | Day service on weekdays & Saturdays, merged with Service 97 |
| 90 | Buona Vista ↺ Airport Rd | 11 Apr 1971 – 4 Nov 1989 | |
| 91 | Lor 1 Geylang ↺ Airport Rd | 11 Apr 1971 – 4 Nov 1989 | |
| 92 | Clementi ↺ Airport Rd | 11 Apr 1971 – 22 May 1993 | Merged with Service 14 and partially replaced by new Service 90 |
| 94 | Sims Pl ↺ Shenton Way | 11 Apr 1971 – 10 Jun 1989 | |
| 95 | Clementi ↺ Airport Rd | 22 Apr 1971 – 12 Mar 1988 | Replaced by new Service 105 |
| 101 | Serangoon ↔ New Bridge Rd | 11 Apr 1971 – 1 Sep 1990 | Merged with former Service 83 |
| 102 | Jln Kayu ↔ New Bridge Rd | 2 Mar 1981 – 12 Nov 1983 | Day service on weekdays & Saturdays |
| 104 | Serangoon ↔ New Bridge Rd | 23 Apr 1971 – 4 Dec 1993 | Merged with Service 134 to form new Service 54 |
| 112 | Buona Vista ↺ Empress Pl | 11 Apr 1971 – 23 Nov 1985 | |
| 118 | Hougang (Sth) ↺ Tomlinson Rd | 24 Jan 1988 – 15 Dec 1990 | Merged with Service 111 |
| 120 | St. Michael’s ↺ Beach Rd | 11 Apr 1971 – 1989 | |
| 122 | Buona Vista ↔ St. Michael’s | 11 Apr 1971 – 3 Apr 1993 | Partially replaced by Service 139 |
| 126 | St. Michael’s ↺ New Bridge Rd | 11 Apr 1971 – 14 Apr 1990 | Peak hour service on weekdays & Saturdays |
| 132A | Ang Mo Kio ↺ Tomlinson Rd | 30 Jan 1984 – 12 Apr 1986 | Peak hour service on weekdays & Saturdays |
| 133A | Ang Mo Kio ↔ Marina Ctr via Serangoon Ave 2 | 10 Jul 1988 – 4 Nov 1989 | Merged with parent Service 133 |
| 134 | Bishan ↔ New Bridge Rd | 17 Aug 1980 – 4 Dec 1993 | Merged with Service 104 to form new Service 54 |
| 137 | Toa Payoh ↺ Mandai Lake Rd | 25 Jun 1973 – 19 Sep 1992 | |
| 138 | Ang Mo Kio ↺ Shenton Way | 28 Jul 1978 – 23 Jan 1988 | Semi-express day service on weekdays & Saturdays |
| 140 | Toa Payoh ↺ Orchard Rd | 11 Apr 1971 – 23 Jan 1988 | Daily semi-express service |
| 141 | Toa Payoh ↺ Shenton Way | 11 Apr 1971 – 23 Jan 1988 | Semi-express day service on weekdays & Saturdays |
| 144 | Toa Payoh Town Ctr ↔ Commonwealth Ave | 11 Apr 1971 – 10 Apr 1982 | |
| 146 | Toa Payoh ↔ Clementi | 11 Apr 1971 – 26 Aug 1989 | Merged with Service 166 |
| 148 | Toa Payoh ↔ Buona Vista | 11 Apr 1971 – 26 Aug 1989 | Merged with Service 26 |
| 148 | Clementi ↔ Lor 1 Geylang | 29 Mar 1992 – 28 Nov 1992 | Replaced by Service 196 |
| 149 | Toa Payoh ↺ Changi Airport | 25 Jun 1983 – 4 Dec 1993 | Merged with Services 16 & 31 |
| 150 | Toa Payoh ↔ Crawford St | 11 Apr 1971 – 1 Sep 1990 | Merged with Service 56 |
| 151 | Toa Payoh ↺ New Bridge Rd | 11 Apr 1971 – 27 May 1989 | Day service on weekdays & Saturdays |
| 156 | Toa Payoh Town Ctr ↔ Upp Serangoon | 11 Apr 1971 – 25 Dec 1983 | Merged with Service 153 |
| 161 | Sembawang Rd End ↔ Shenton Way | 11 Apr 1971 – 19 Sep 1992 | Merged with Service 167 |
| 162 | Ang Mo Kio ↺ Sims Ave | 21 Nov 1977 – 5 Jan 1991 | |
| 164 | Sembawang Rd End ↔ New Bridge Rd | 11 Apr 1971 – 30 Sep 1989 | Partially replaced by new Service 855 |
| 168 | Ang Mo Kio ↺ Orchard Rd | 3 Feb 1974 – 10 Jun 1989 | Daily semi-express service |
| 175 | Bukit Batok ↺ Jurong West St 91 | 11 Apr 1971 – 19 Jan 1991 | |
| 176 | Clementi ↺ Empress Pl | 11 Apr 1971 – 25 Dec 1983 | Merged with former Service 146 |
| 177 | Bukit Timah ↺ (Old) Choa Chu Kang Rd | 27 Nov 1978 – 30 Jul 1988 | |
| 179 | Lim Chu Kang ↔ Bukit Timah | 3 Feb 1974 – 26 Nov 1983 | |
| 179 | Choa Chu Kang ↔ New Bridge Rd | 18 Aug 1985 – 15 Dec 1990 | Merged with Service 190 |
| 180 | Marsiling ↔ World Trade Ctr | 3 Feb 1974 – 5 Jan 1991 | |
| 183 | Jurong ↔ New Bridge Rd | 3 Feb 1974 – 17 Dec 1988 | |
| 184 | Bukit Merah ↔ Jurong | 25 Nov 1977 – 30 Jun 1990 | Merged with Service 176 |
| 185 | Clementi ↺ Bukit Merah | 16 Jul 1979 – 27 Apr 1985 | Merged with former Service 92 |
| 186 | Clementi ↔ Shenton Way | 7 Nov 1977 – 26 Aug 1989 | Merged with Service 145 |
| 187 | Bukit Merah ↺ Empress Pl | 15 Feb 1981 – 12 Nov 1983 | Peak hour service on weekdays & Saturdays |
| 188 | Ulu Pandan ↺ Shenton Way | 17 Oct 1977 – 4 Jul 1987 | |
| 188 | Corporation Dr ↺ Jurong West St 91 | 10 Jul 1988 – 19 Jan 1991 | |
| 191 | Clementi ↺ Bras Basah Rd | 11 Apr 1971 – 29 Oct 1983 | Merged with Service 7 |
| 192 | Jurong ↔ Sth Canal | 11 Apr 1971 – 17 Dec 1988 | Merged with Service 51 |
| 193 | Princess Elizabeth ↔ Shenton Way | 11 Apr 1971 – 27 Apr 1991 | |
| 194 | Sth Canal ↺ Yong Siak St | 11 Apr 1971 – 3 Apr 1993 | |
| 201 | Kent Ridge ↺ Jln Anak Bt | 11 Apr 1971 – 3 Apr 1993 | Replaced by new Service 151 |
| 202 | Buona Vista ↺ Jln Anak Bt | 27 Nov 1978 – 4 Dec 1993 | Merged with Service 74 |
| 203 | Commonwealth Dr ↺ Margaret Dr | 14 Nov 1980 – 17 Dec 1988 | Merged with Service 195 |
| 204 | Woodlands (Town Ctr) ↺ Sg Kadut Dr | 19 Oct 1981 – 5 Apr 1986 | Merged with Service 208 to form new Service 925/925# |
| 205 | Clementi ↺ Jln Anak Bt | 25 May 1981 – 6 Apr 1991 | Merged with Service 173 |
| 206 | Boon Lay ↔ Lim Chu Kang | 11 Apr 1971 – 17 Jul 1993 | Replaced by new Services 175 & 405 |
| 207 | Bedok ↺ Upp Changi Rd | 9 Nov 1980 – 1 Sep 1990 | |
| 208 | Woodlands (Town Ctr) ↺ Kranji Way | 11 Apr 1971 – 5 Apr 1986 | Merged with Service 204 to form new Service 925/925# |
| 209 | Clementi ↔ Crawford St | 3 Feb 1974 – 30 Jul 1988 | |
| 245 | Jurong ↺ Pandan Rd | 6 Jun 1977 – 30 Jun 1990 | Merged with Service 78 |
| 247 | Boon Lay ↺ Jurong Pier Rd | 1 Jun 1978 – 19 Jan 1991 | Merged with Service 98 |
| 247A | Boon Lay Gdns → Jurong Pier Rd (AM) Jurong Pier Rd → Boon Lay Gdns (PM) |
22 Jun 1978 – 3 Oct 1987 | |
| 248 | Boon Lay ↺ Neythal Rd | 1 Jun 1978 – 28 Mar 1992 | Merged with Service 250 |
| 249A | Boon Lay Gdns → Jln Samulun (AM) Jln Samulun → Boon Lay Gdns (PM) |
16 Jun 1978 – 3 Oct 1987 | |
| 250A | Boon Lay Gdns → Lokyang Way (AM) Intl Rd → Boon Lay Gdns (PM) |
22 Jun 1978 – 3 Oct 1987 | |
| 251A | Boon Lay Gdns → Refinery Rd (AM) Refinery Rd → Boon Lay Gdns (PM) |
22 Jun 1978 – 3 Oct 1987 | |
| 390 | Changi Airport ↺ Tomlinson Rd | 28 Jun 1981 – 4 Dec 1993 | Merged with Service 16 |
| 391 | Changi Village ↺ Airport Cargo Rd | 22 Feb 1981 – 24 Jun 1983 | Merged with Service 9 |
| 392 | Somapah ↺ Changi Airport | 28 Jun 1981 – 24 Jun 1983 | Merged with CAS Service 394 & SSB Service 727 to form new Service 24 |
| 393 | Somapah ↺ Airport Cargo Rd | 29 Jun 1981 – 31 Oct 1981 | Peak hour day service on weekdays & Saturdays, merged with CAS Service 395 |
| 394 | Bedok ↺ Changi Airport | 3 May 1981 – 24 Jun 1983 | Merged with CAS Service 392 & SSB Service 727 to form new Service 24 |
| 395 | Bedok ↺ Airport Cargo Rd | 29 Jun 1981 – 24 Jun 1983 | Peak hour day service on weekdays & Saturdays, merged with Service 9 |
| 402 | Capitol Theatre ↔ Bukit Timah Race Course | 11 May 1975 – 27 Feb 1982 | Operated during horse racing days on Sundays |
| 406 | Jurong ↺ Chinese/Japanese Gdns | 4 Jun 1978 – 22 Oct 1989 | Operated on Sundays & PHs, merged with Service 199 |
| 450 | Jurong ↺ Pasir Laba Camp | 3 Jun 1978 – 30 Jun 1990 | Operated on Saturdays, Sundays & PHs |
| 850 | Yishun ↔ Bukit Merah | 3 Feb 1985 – 19 Sep 1992 | Full day service on weekdays & Saturdays, merged with Service 167 |
| 850# | Yishun ↔ Bukit Merah via Marina Ctr | 28 Feb 1988 – 13 Sep 1992 | Alternate route variant of parent Service 850 on Sundays & PHs, merged with Service 167 |
| M3 | Bedok Gdns ↺ Lucky Gdns | 6 Nov 1989 – 28 Mar 1992 | Day service on weekdays & Saturdays |
| SS1 | Yio Chu Kang ↺ Yishun Ring Rd | 13 Dec 1987 – 19 Dec 1988 | |
| SS2 | Clementi ↺ Jurong East St 32 | 13 Mar 1988 – 5 Nov 1988 | |
| SS3 | Jurong East ↺ Bt Batok West Ave 7 | 13 Mar 1988 – 10 Mar 1990 | |
| SS4 | Tampines ↺ Tanah Merah Stn | 5 Nov 1989 – 16 Dec 1989 | |
| SS5 | Tampines ↺ Tanah Merah Stn | 5 Nov 1989 – 16 Dec 1989 | |
| SS6 | Simei Rd ↺ Tanah Merah Stn | 5 Nov 1989 – 16 Dec 1989 |
Defunct Feeder Services
| Service | Route | Period of Operations | Remarks |
| 210 | Changi Village ↺ Cranwell Rd | 22 Feb 1976 – 25 Apr 1987 | Merged with Service 29 |
| 211 | Marine Parade ↺ East Coast Rd | 23 Dec 1979 – 4 Mar 1989 | |
| 212 | Buona Vista ↺ Dover Rd | 21 Jun 1976 – 9 Jul 1988 | Day service on weekdays & Saturdays, merged with Service 202 |
| 213 | Changi Village ↺ Old Sarum Rd | 26 Jul 1976 – 21 Feb 1981 | Replaced by new CAS Service 391 |
| 215 | Labrador ↺ Tg Berlayer | 25 Apr 1977 – 21 Mar 1987 | |
| 216 | Kent Ridge ↺ Holland Dr | 3 Jul 1978 – 14 Apr 1990 | Day service on weekdays & Saturdays |
| 218 | Changi Village ↺ (Old) Changi Hosp | 6 Feb 1978 – 25 Apr 1987 | Merged with Service 29 |
| 221 | Bedok ↺ Bedok Nth Ave 3 | 11 Jul 1977 – 7 Sep 1985 | Split into bi-directional Feeder Service 221G/221W |
| 221C | Chai Chee ↺ Bedok Nth Ave 3 | 6 Aug 1979 – 14 Sep 1985 | Alternate full day route variant of parent Feeder Service 221 from Chai Chee Ter |
| 222G | Bedok ↺ Bedok Sth Ave 3 | 6 Aug 1979 – 14 Sep 1985 | Split from Feeder Service 222 |
| 222W | |||
| 223 | Chai Chee ↺ Bedok Nth Ave 2 | 16 Oct 1978 – 14 Sep 1985 | |
| 224 | Bedok ↺ Chai Chee Rd | 15 Sep 1985 – 28 Nov 1992 | Merged from Feeder Service 224G/224W |
| 224G | Chai Chee ↺ Bedok Sth Ave 3 | 25 Feb 1979 – 14 Sep 1985 | Amended to Bedok and merged as uni-directional Feeder Service 224 |
| 224W | |||
| 230 | Toa Payoh Ctrl ↺ Lor 8 Toa Payoh | 13 Dec 1976 – 25 Dec 1983 | Replaced by new Feeder Service 238 |
| 239 | Toa Payoh ↺ Kim Keat Ave | 26 Dec 1983 – 14 Dec 1985 | |
| 242 | Jurong ↺ Kang Ching Rd | 1 Jun 1978 – 10 Mar 1990 | |
| 244 | Boon Lay ↺ Corporation Dr | 1 Jun 1978 – 28 Mar 1992 | |
| 264 | Ang Mo Kio Ctrl 2 ↺ Ang Mo Kio St 44 | 5 Jul 1981 – 9 Aug 1981 | |
| 270 | Depot Cl ↺ Telok Blangah Rise | 15 Feb 1981 – 22 Sep 1981 | Daily peak hour ring service |
| 271 | Bukit Merah ↺ Telok Blangah Cres | 15 Mar 1981 – 3 Apr 1993 | Merged with Feeder Service 272 |
| 287 | Clementi ↺ Clementi West St 2 | 1 Aug 1982 – 7 Mar 1988 | Merged with Feeder Service 282 |
| 312 | Serangoon ↺ Serangoon Ave 3 | 22 Dec 1985 – 2 May 1992 | Merged with Service 105 |
| 318 | Serangoon ↺ Serangoon Gdn Way | 13 Mar 1988 – 27 May 1989 | Merged with Feeder Service 315 |
| 329 | Hougang (Sth) ↺ Hougang Depot | 10 Jun 1984 – 9 Apr 1988 | Merged with Feeder Service 323 |
| 336 | Jurong East ↺ Jurong West St 41 | 9 Jun 1985 – 22 Jan 1994 | Merged with Feeder Service 335 |
| 353 | Sin Ming Rd ↺ Sin Ming Ave | 28 Dec 1986 – 21 Aug 1988 | Replaced by new Service 57 |
| 366 | Bukit Batok ↺ Bukit Batok Depot | 3 Feb 1985 – 27 Apr 1991 | Merged with Service 189 |