This article reflects the changes in routes for operational trunk bus services in Singapore. For more information on the exact operating hours and calling bus stops of trunk bus services, please click on the links to their individual bus service articles attached in their headings.
SMRT Bus Service 110 (since 22 Oct 2017)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2017 | Compassvale Interchange, Sengkang Sq, Compassvale Rd, Compassvale Dr, Anchorvale Dr, Anchorvale Rd, Anchorvale St, Sengkang East Rd, TPE, PIE, ECP, Airport Blvd, T3 Departure Dr, T3 Lk Sth, Changi Airport Ter 3, T3 Lk Nth, T1 Blvd, T1 Basement Dr, Changi Airport Ter 1, T1 Basement Dr, T2 Basement Dr and Changi Airport Ter 2 (Loop) | T2 Basement Dr, T2 Blvd, Airport Blvd, T4 Lk, T4 Way, T4 Cres, Changi Airport Ter 4, T4 Cres, T4 Lk, T4 Arrival Dr, T4 Blvd, Airport Blvd, ECP, PIE, TPE, Sengkang East Rd, Anchorvale St, Anchorvale Rd, Anchorvale Dr, Compassvale Dr, Compassvale Rd and Compassvale Interchange. |
SBS Transit Bus Service 111 (since 11 Apr 1971)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2023 | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd, Temasek Blvd and Temasek Ave (Loop) | Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd, u-turn near Grove Residence, back along Ghim Moh Rd and Ghim Moh Terminal. |
| 2005 | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd, Temasek Blvd and Temasek Ave (Loop) | Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd and Ghim Moh Terminal. |
| 2003 | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Bras Basah Rd, Raffles Blvd, Temasek Blvd and Temasek Ave (Loop) | Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd and Ghim Moh Terminal. |
| 1994 | Hougang Ctrl Interchange, Hougang Ctrl, Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd and Ghim Moh Terminal. | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Prinsep St, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Hougang Ctrl and Hougang Ctrl Interchange. |
| 1992 | Hougang Interchange, Hougang St 21, Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Orchard Lk, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd and Ghim Moh Terminal. | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Prinsep St, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Hougang St 21 and Hougang Interchange. |
| 1989 | Hougang Interchange, Hougang St 21, Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Commonwealth Ave West, Ghim Moh Rd and Ghim Moh Terminal. | Ghim Moh Terminal, Ghim Moh Rd, Commonwealth Ave West, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Hougang St 21 and Hougang Interchange. |
| 1983 | Hougang Interchange, Hougang St 21, Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Holland Ave, Holland Dr and Buona Vista Terminal. | Buona Vista Terminal, Nth Buona Vista Rd, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Hougang St 21 and Hougang Interchange. |
| 1982 | Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Holland Ave, Holland Dr and Buona Vista Terminal. | Buona Vista Terminal, Nth Buona Vista Rd, Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Simon Rd, Simon Lane, Florence Rd, Lim Ah Pin Rd and Upp Serangoon Rd. |
| 1977 | Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Grange Rd, Tanglin Rd, Alexandra Rd, Commonwealth Ave, Holland Ave, Holland Dr, Nth Buona Vista Rd and Commonwealth Ave. | Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Simon Rd, Simon Lane, Florence Rd, Lim Ah Pin Rd and Upp Serangoon Rd. |
| 1974 | Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Blvd, Paterson Rd, Orchard Rd, Tanglin Rd, Alexandra Rd and Commonwealth Ave. | Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Simon Rd, Simon Lane, Florence Rd, Lim Ah Pin Rd and Upp Serangoon Rd. |
| 1972 | Upp Serangoon Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Rd, Tanglin Rd, Alexandra Rd and Commonwealth Ave. | Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Simon Rd, Simon Lane, Florence Rd, Lim Ah Pin Rd and Upp Serangoon Rd. |
| 1971 | Upp Serangoon Rd, Bendemeer Rd, Whampoa Nth, Serangoon Rd, Boon Keng Rd, Bendemeer Rd, Jln Besar, Bencoolen St, Orchard Rd, Penang Rd, Somerset Rd, Grange Rd, Orchard Rd, Tanglin Rd, Alexandra Rd and Commonwealth Ave. | Commonwealth Ave, Alexandra Rd, Tanglin Rd, Orchard Rd, Dhoby Ghaut, Selegie Rd, Serangoon Rd, Upp Serangoon Rd, Simon Rd, Simon Lane, Florence Rd, Lim Ah Pin Rd and Upp Serangoon Rd. |
SBS Transit Bus Service 112 (since 15 Feb 2004)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2004 | Hougang Ctrl Interchange, Hougang Ctrl, Upp Serangoon Rd, Hougang Ave 7, Tampines Rd, Hougang Ave 1, Hougang St 21, Upp Serangoon Rd, Hougang Ave 2, Hougang Ave 8, Hougang Ave 4, Hougang Ave 9 and Hougang St 92 (Loop) | Hougang Ave 9, Hougang Ave 4, Hougang Ave 8, Hougang Ave 2, Upp Serangoon Rd, Hougang St 21, Hougang Ave 1, Tampines Rd, Hougang Ave 7, Upp Serangoon Rd, Hougang Ctrl and Hougang Ctrl Interchange. |
SBS Transit Bus Service 112A (since 15 Feb 2004)
| Year | Route (Midnight: One-Directional) |
| 2004 | Hougang Ctrl Interchange, Hougang Ctrl, Upp Serangoon Rd, Hougang Ave 7, Tampines Rd, Hougang Ave 1, Hougang St 21 and Upp Serangoon Rd (terminating at Kovan Stn Exit B). |
SBS Transit Bus Service 113 (since 15 Feb 2004)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2004 | Hougang Ctrl Interchange, Hougang Ctrl, Upp Serangoon Rd, Hougang Ave 8, Hougang Ave 6, Hougang Ave 10, Hougang Ave 2, Upp Serangoon Rd, Hougang St 21, Hougang Ave 1, Lor Ah Soo, Hougang St 11 and Upp Paya Lebar Rd (Loop) | Lor Ah Soo, Hougang Ave 1, Hougang St 21, Upp Serangoon Rd, Hougang Ave 2, Hougang Ave 10, Hougang Ave 6, Hougang Ave 8, Upp Serangoon Rd, Hougang Ctrl and Hougang Ctrl Interchange. |
SBS Transit Bus Service 113A (since 2005)
| Year | Route (AM/PM Peak: One-Directional) |
| 2005 | Upp Serangoon Rd, Hougang St 21, Hougang Ave 1, Lor Ah Soo, Hougang St 11, Upp Paya Lebar Rd, Lor Ah Soo, Hougang Ave 1, Hougang St 21 and Upp Serangoon Rd (terminating at Kovan Stn Exit B). |
SBS Transit Bus Service 114 (since 25 Oct 2020)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2020 | Sengkang Ctrl, Buangkok Dr, Buangkok Lk and Buangkok Cres (Loop) | Buangkok Lk, Buangkok Dr and Sengkang Ctrl. |
SBS Transit Bus Service 114A (since 31 Dec 2021)
| Year | Route (Midnight: One-Directional) |
| 2021 | Sengkang Ctrl, Buangkok Dr, Buangkok Lk and Buangkok Cres (terminating at Blk 998B). |
SBS Transit Bus Service 115 (since 30 Oct 2004)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2004 | Hougang St 21, Hougang Ave 1, Lor Ah Soo and Hougang Ave 3 (Loop) | Upp Serangoon Rd and Hougang St 21. |
SBS Transit Bus Service 116 (since 18 Nov 2012)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2012 | Hougang Ctrl Interchange, Hougang Ctrl, Hougang Ave 4, Hougang Ave 9, Serangoon Nth Ave 5, Serangoon Nth Ave 4, Serangoon Nth Ave 3, Ang Mo Kio Ave 3, Yio Chu Kang Rd, Yio Chu Kang Lk and Serangoon Ctrl (Loop) | Upp Serangoon Rd, Boundary Rd, Yio Chu Kang Lk, Yio Chu Kang Rd, Ang Mo Kio Ave 3, Serangoon Nth Ave 3, Serangoon Nth Ave 4, Serangoon Nth Ave 5, Hougang Ave 9, Hougang Ave 4, Hougang Ctrl and Hougang Ctrl Interchange. |
SBS Transit Bus Service 116A (since 15 Apr 2019)
| Year | Route (AM Peak: One-Directional) |
| 2019 | Serangoon Nth Ave 4, Serangoon Nth Ave 3, Ang Mo Kio Ave 3, Yio Chu Kang Rd, Yio Chu Kang Lk and Serangoon Ctrl (terminating at S’goon Stn Exit C/Blk 201). |
SBS Transit Bus Service 117 (since 20 Dec 2015)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2022 | Punggol Interchange, Punggol Pl, Punggol Field, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, West Camp Rd, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Canberra Way, Canberra Cres, Canberra Wk, Canberra St, Sembawang Rd, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Sembawang Rd, Canberra St, Canberra Wk, Canberra Cres, Canberra Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, West Camp Rd, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Field, Punggol Pl and Punggol Interchange. |
| 2021 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, West Camp Rd, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Canberra Way, Canberra Cres, Canberra Wk, Canberra St, Sembawang Rd, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Sembawang Rd, Canberra St, Canberra Wk, Canberra Cres, Canberra Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, West Camp Rd, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
| 2016 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, West Camp Rd, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, West Camp Rd, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
| 2015 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
SBS Transit Bus Service 117A (since 14 Jan 2019)
| Year | Route (AM Peak: One-Directional) |
| 2019 | Yishun Ave 1 and Yishun Ave 2 (terminating at Bef Khatib Stn). |
SBS Transit Bus Service 117M (since 29 Nov 2021)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2022 | Punggol Interchange, Punggol Pl, Punggol Field, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, Seletar Aerospace Cres, Seletar Aerospace Lk, West Camp Rd, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Canberra Way, Canberra Cres, Canberra Wk, Canberra St, Sembawang Rd, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Sembawang Rd, Canberra St, Canberra Wk, Canberra Cres, Canberra Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, West Camp Rd, Seletar Aerospace Lk, Seletar Aerospace Cres, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Field, Punggol Pl and Punggol Interchange. |
| 2021 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Jln Kayu, Piccadilly, Seletar Aerospace Dr, Seletar Aerospace Cres, Seletar Aerospace Lk, West Camp Rd, Seletar West Lk, Yishun Ave 1, Yishun Ave 2, Canberra Lk, Canberra Way, Canberra Cres, Canberra Wk, Canberra St, Sembawang Rd, Canberra Lk, Sembawang Way, Sembawang Dr, Sembawang Vista and Sembawang Interchange. | Sembawang Interchange, Sembawang Vista, Sembawang Dr, Sembawang Way, Canberra Lk, Sembawang Rd, Canberra St, Canberra Wk, Canberra Cres, Canberra Way, Canberra Lk, Yishun Ave 2, Yishun Ave 1, Seletar West Lk, West Camp Rd, Seletar Aerospace Lk, Seletar Aerospace Cres, Seletar Aerospace Dr, Piccadilly, Jln Kayu, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
Go-Ahead Bus Service 118 (since 20 Dec 2015)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2017 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Tampines Ave 10, Tampines Ave 5, Tampines Ave 8, Tampines Ave 1, Simei Ave, Xilin Ave, Changi Sth Ave 1, Changi Business Pk Ave 1, Changi Business Pk Ctrl 1, Changi Business Pk Ctrl 2, Changi Sth Ave 1 and Changi Business Pk Terminal. | Changi Business Pk Terminal, Changi Sth Ave 1, Changi Business Pk Ctrl 2, Changi Business Pk Ctrl 1, Changi Business Pk Ave 1, Changi Sth Ave 1, Xilin Ave, Simei Ave, Tampines Ave 1, Tampines Ave 8, Tampines Ave 5, Tampines Ave 10, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
| 2015 | Punggol Interchange, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Tampines Ave 10, Tampines Ave 5, Tampines Ave 8, Tampines Ave 1, Simei Ave, Xilin Ave, Changi Sth Ave 1, Changi Sth Ave 2, Changi Business Pk Ctrl 1, Changi Business Pk Ctrl 2, Changi Sth Ave 1 and Changi Business Pk Terminal. | Changi Business Pk Terminal, Changi Sth Ave 1, Changi Business Pk Ctrl 2, Changi Business Pk Ctrl 1, Changi Sth Ave 2, Changi Sth Ave 1, Xilin Ave, Simei Ave, Tampines Ave 1, Tampines Ave 8, Tampines Ave 5, Tampines Ave 10, TPE, Punggol Way, Punggol Ctrl, Punggol Pl and Punggol Interchange. |
Go-Ahead Bus Service 118A (since 10 Apr 2017)
| Year | Route (AM Peak: One-Directional) |
| 2023 | Punggol Temp Int, Punggol Pl, Punggol Ctrl, Punggol Way, TPE, Tampines Ave 10, Tampines Ave 5, Tampines Ave 8, Tampines Ave 1 and Simei Ave (terminating at ITE Coll East Adm Blk). |
| 2017 | TPE, Tampines Ave 10, Tampines Ave 5, Tampines Ave 8, Tampines Ave 1 and Simei Ave (terminating at ITE Coll East Adm Blk). |
Go-Ahead Bus Service 118B (since 10 Apr 2017)
| Year | Route (PM Peak: One-Directional) |
| 2017 | Simei Ave, Tampines Ave 1, Tampines Ave 8, Tampines Ave 5, Tampines Ave 10 and TPE (terminating at Bef Punggol Rd). |
Go-Ahead Bus Service 119 (since 14 Sep 2003)
| Year | Route | |
| Direction 1 | Direction 2 | |
| 2012 | Punggol Interchange, Punggol Pl, Punggol Field, Punggol Way, Sengkang East Rd, Sengkang East Way, Rivervale Dr, Sengkang East Ave, Punggol Rd, Hougang Ave 10, Hougang Ave 8, Upp Serangoon Rd and Hougang St 21 (Loop) | Hougang Ave 1, Tampines Rd, Upp Serangoon Rd, Hougang Ave 8, Hougang Ave 10, Punggol Rd, Sengkang East Ave, Rivervale Dr, Sengkang East Way, Sengkang East Rd, Punggol Way, Punggol Field, Punggol Pl and Punggol Interchange. |
| 2003 | Sengkang Interchange, Sengkang Sq, Compassvale Rd, Sengkang East Way, Rivervale Dr, Sengkang East Ave, Punggol Rd, Hougang Ave 10, Hougang Ave 8, Upp Serangoon Rd and Hougang St 21 (Loop) | Hougang Ave 1, Tampines Rd, Upp Serangoon Rd, Hougang Ave 8, Hougang Ave 10, Punggol Rd, Sengkang East Ave, Rivervale Dr, Sengkang East Way, Sengkang Sq and Sengkang Interchange. |
External Links & References:
- SBS Bus Guides 1980 – 1990/1991
- TransitLink Guides 1992 – 2014
- Transitlink eGuide
- SGWiki – History of Bus Services