Bus Service 851

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TRAVEL ADVISORY
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SMRT Trains
  • From Sunday, 14 November 2024 to 31 October 2025, Train services on the Bukit Panjang LRT will end an hour earlier at 22:30 every Thursday to Sunday (except Public Holidays). This is to facilitate the upgrading of the BPLRT signalling system, as well as the testing of the new and retrofitted Light Rail Vehicles (LRVs) on the BPLRT network. Please refer here for more information.

SBS Transit
  • From Monday, 17 March 2025, short-trip service 71A will be introduced from Mayflower MRT Station to Bishan MRT Station. Please refer here for more information.

SMRT Buses
  • From Sunday, 23 March 2025, supplementary bus service 258M will ply an extended route looping at Boon Lay Place to provide direct connection to amenities such as Boon Lay Shopping Centre. Please refer here for more information.

SMRT Buses
  • From Monday, 24 March 2025, supplementary bus service 979X will be introduced to provide a faster connection for residents in Yew Tee Village to and from Bukit Panjang MRT / Bus Interchange. Bus service 979X will supplement bus service 979 and serve selected bus stops along its route. It will operate on weekdays (excluding Public Holidays) during the morning and evening peak periods. Please refer here for more information.

Tower Transit
  • From Monday, 24 March 2025, supplementary bus service 861M will be introduced to complement existing travel options to Wellington Primary School. It will operate from Canberra Way, terminating at Sembawang Bus Interchange. This service will operate two trips during the morning peak period on weekdays during school term only. Please refer here for more information.

SBS Transit
  • From Monday, 24 March 2025, short-trip service 112B will be introduced starting from Hougang Central Bus Interchange and terminating at Hougang Avenue 7. This service will only operate on weekdays (excluding public holidays) during the evening peak period. Please refer here for more information.

Service 851
SG5148M 851.jpg
Route Information
Route Yishun Interchange ↔ Bukit Merah Interchange
Route Length 23.5 km (towards Bukit Merah)
23.1 km (towards Yishun)
Travelling Time 90 mins (1 h 30 mins)
Operator SBS Transit
(Seletar Bus Package)

SBS Transit Bus Service 851 is an inter-town bus service that connects the residential estates of Yishun, Ang Mo Kio, Novena and Bukit Merah to the city area such as Outram and Downtown Core.

This service largely duplicates with service 852 between Yishun and Marymount subzone (Bishan), after which it continues south towards the city, whereas service 852 heads west towards Bukit Batok.

Service Information[edit]

Bus Duty & Fleet[edit]

Service 851
Depot Fleet Size Fleet
Seletar Depot (SEDEP) 29 24 Single Deckers 5 Double Deckers
SMB3076Y
SMB3089K
SMB3100K
SMB3137E
SMB3138C
SMB3139A
SMB3140U
SMB3141S
SMB3142P
SMB3151M
SMB3152K
SMB3153H
SMB3154E
SMB3155C
SMB3157Y
SMB3158U
SMB3159S
SMB3164B
SMB3165Z
MAN NL323F
SG1204K
SG1206E
Mercedes-Benz O530 Citaro
SG5040P
SG5136Y
SG5137U
SG5148M
SG5149K
Volvo B9TL
Notes
  • SG1204K & SG1206E (Service 851) will
    • perform one (1) crossover trip on City Direct 668 towards Marina Boulevard during Weekdays AM Peak.
    • perform one (1) crossover trip on City Direct 668 towards Ang Mo Kio Ave 5 during Weekdays PM Peak, departing from Central Boulevard (Bus Stop 03539 - Marina Bay Stn at 1810 hours.
  • SMB3164B & 1 other Service 851 SD will perform crossover trips on City Direct 668 towards Marina Boulevard during Weekdays AM Peak.
  • This service practises jumpbus.

Route Information[edit]

Frequency[edit]

Period AM Peak
(First Bus - 08:30)
AM Off Peak
(08:31 - 16:59)
PM Peak
(17:00 - 19:00)
PM Off Peak
(19:01 - Last Bus)
towards Bukit Merah 07 - 09 minutes 07 - 12 minutes 07 - 13 minutes 12 - 14 minutes
towards Yishun 09 - 10 minutes 07 - 13 minutes 08 - 10 minutes 07 - 13 minutes

Special Departures[edit]

icon53159
Blk 260
Marymount Rd
icon10009
Bt Merah Int
Bt Merah Ctrl

Departure Time
Weekdays
05:45
(SMB3138C - Duty 6A)

Direction 1 (Yishun → Bukit Merah)[edit]

[Show/Hide Full Route Details]

Bus Stops Point of Interest Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon59009
Yishun Int(Berth B5)
Yishun Ave 2
NS13Yishun
Northpoint City
Nee Soon Central CC
05:3023:4005:3023:4005:3023:40
icon59069
Opp Blk 757
Yishun Ave 2
05:3123:4105:3123:4105:3123:41
icon59059
Blk 608
Yishun Ave 2
05:3523:4305:3523:4305:3523:43
icon59049
Opp Khatib Stn
Yishun Ave 2
NS14Khatib 05:3823:4505:3823:4505:3823:45
icon59039
Yishun Sports Hall
Yishun Ave 2
05:3923:4605:3923:4605:3923:46
icon59029
Aft Yishun Ave 1
Lentor Ave
05:4023:4705:4023:4705:4023:47
icon59019
Aft Sg Seletar Bridge
Lentor Ave
05:4123:4805:4123:4805:4123:48
icon55269
Opp Bullion Pk Condo
Lentor Ave
05:4323:5105:4323:5105:4323:51
icon55259
Opp Countryside Est
Lentor Ave
05:4423:5205:4423:5205:4423:52
icon55249
Bef Yio Chu Kang Rd
Lentor Ave
05:4523:5305:4523:5305:4523:53
icon55179
Opp Castle Green
Ang Mo Kio Ave 6
05:4623:5405:4623:5405:4623:54
icon55189
Yio Chu Kang Stn
Ang Mo Kio Ave 6
NS15Yio Chu Kang 05:4723:5505:4723:5505:4723:55
icon55209
Opp Blk 646
Ang Mo Kio Ave 6
05:4923:5705:4923:5705:4923:57
icon54059
Bef Ang Mo Kio Lib
Ang Mo Kio Ave 6
Ang Mo Kio Public Library 05:5023:5805:5023:5805:5023:58
icon54049
Courts Ang Mo Kio
Ang Mo Kio Ave 6
Ang Mo Kio Polyclinic 05:5123:5905:5123:5905:5123:59
icon54039
Bef Al-Muttaqin Mque
Ang Mo Kio Ave 6
Masjid Al-Muttaqin 05:5200:0005:5200:0005:5200:00
icon54019
Blk 307A
Ang Mo Kio Ave 6
05:5400:0205:5400:0205:5400:02
icon53169
Blk 254
Marymount Rd
05:5600:0405:5700:0405:5700:04
icon53159
Blk 260
Marymount Rd
05:4500:0505:5800:0505:5800:05
icon53149
Whitley Sec Sch
Marymount Rd
05:4600:0605:5900:0605:5900:06
icon53139
Marymount View
Marymount Rd
05:4700:0606:0000:0606:0000:06
icon53129
Opp Marymount Stn
Marymount Rd
CC16Marymount 05:4900:0706:0200:0706:0200:07
icon53119
Aft Bishan St 21
Marymount Rd
05:5000:0806:0300:0806:0300:08
icon51089
Marymount Convent Sch
Marymount Rd
05:5100:0906:0400:0906:0400:09
icon51059
Aft Toa Payoh Rise
Thomson Rd
05:5300:1106:0600:1106:0600:11
icon51049
SLF Cplx
Thomson Rd
05:5500:1206:0700:1206:0700:12
icon51039
Opp S'pore Polo Club
Thomson Rd
05:5900:1306:0800:1306:0800:13
icon51029
Opp Old Police Acad
Thomson Rd
05:5900:1306:0900:1306:0900:13
icon51019
Thomson Flyover
Thomson Rd
06:0000:1406:1000:1406:1000:14
icon50059
Opp Thomson Med Ctr
Thomson Rd
06:0100:1506:1100:1506:1100:15
icon50049
Opp Novena Lodge
Thomson Rd
06:0200:1606:1200:1606:1200:16
icon50038
Novena Stn
Thomson Rd
NS20Novena
Velocity @ Novena Square
Tan Tock Seng Hospital
06:0300:1706:1400:1706:1400:17
icon50029
Opp United Sq
Thomson Rd
06:0400:1806:1500:1806:1500:18
icon50019
Parish of Christ Ch
Keng Lee Rd
06:0700:2006:1800:2006:1800:20
icon40109
Opp KK Women & Child Hosp
Kg Java Rd
KK Women's and Children's Hospital 06:0800:2106:1900:2106:1900:21
icon40019
Little India Stn
Bt Timah Rd
NE7DT12Little India 06:0900:2306:2000:2306:2000:23
icon07539
Bef Rochor Stn Exit B
Sungei Rd
DT13Rochor
Tekka Place
06:1200:2406:2200:2406:2200:24
icon07589
Ch of Our Lady of Lourdes
Ophir Rd
06:1400:2506:2400:2506:2400:25
icon01139
Bugis Stn/Parkview Sq
Nth Bridge Rd
EW12DT14Bugis 06:1600:2706:2600:2706:2600:27
icon01039
Bugis Cube
Nth Bridge Rd
06:1700:2806:2700:2806:2700:28
icon01029
Opp Natl Lib
Nth Bridge Rd
National Library Building 06:1800:2906:2800:2906:2800:29
icon04168
Aft City Hall Stn Exit B
Nth Bridge Rd
NS25EW13City Hall
Funan
National Gallery Singapore
06:2000:3106:3000:3106:3000:31
icon04249
Opp The Treasury
Nth Bridge Rd
Funan
National Gallery Singapore
Supreme Court
06:2100:3206:3100:3206:3100:32
icon05029
Boat Quay
Sth Bridge Rd
06:2300:3406:3300:3406:3300:34
icon05131
Opp Hong Lim Cplx
Upp Cross St
NE4DT19Chinatown 06:2500:3606:3500:3606:3500:36
icon05039
New Bridge Ctr
New Bridge Rd
06:2700:3806:3700:3806:3700:38
icon05019
Aft Duxton Plain Pk
New Bridge Rd
06:3000:3906:3800:3906:3800:39
icon06011
Outram Pk Stn Exit 7
Outram Rd
EW16NE3TE17Outram Park
Singapore General Hospital
06:3200:4106:4000:4106:4000:41
icon06051
Blk 55
Tiong Bahru Rd
06:3500:4406:4300:4406:4300:44
icon10141
Blk 18
Tiong Bahru Rd
06:3600:4506:4400:4506:4400:45
icon10151
Ctrl Green Condo
Tiong Bahru Rd
06:3700:4606:4600:4606:4600:46
icon10161
Opp Tiong Bahru Stn/Plaza
Tiong Bahru Rd
EW17Tiong Bahru 06:3800:4706:4700:4706:4700:47
icon10171
Opp Tiong Bahru Pk
Tiong Bahru Rd
06:4000:4906:4900:4906:4900:49
icon10359
Opp Blk 95C
Henderson Rd
06:4100:4906:5000:4906:5000:49
icon10349
Blk 116
Henderson Rd
06:4300:5006:5100:5006:5100:50
icon10009
Bt Merah Int(Alighting)
Bt Merah Ctrl
06:4500:5306:5400:5306:5400:53

Notes:

  • 06:00: Underlined times indicate that the first bus is a downroute bus rather than one starting from the first stop.

Direction 2 (Bukit Merah → Yishun)[edit]

[Show/Hide Full Route Details]

Bus Stops Point of Interest Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon10009
Bt Merah Int(Berth B3)
Bt Merah Ctrl
05:4023:4505:4023:4505:4023:45
icon10341
Opp Blk 116
Henderson Rd
05:4323:4805:4323:4805:4323:48
icon10351
Blk 95B
Henderson Rd
05:4523:4905:4523:4905:4523:49
icon10179
Tiong Bahru Pk
Tiong Bahru Rd
05:4623:5005:4623:5105:4623:51
icon10169
Tiong Bahru Stn/Plaza
Tiong Bahru Rd
EW17Tiong Bahru 05:4923:5205:4923:5305:4923:53
icon10149
Blk 1
Tiong Bahru Rd
05:5123:5405:5123:5505:5123:55
icon06049
Bef Outram Flyover
Outram Rd
05:5323:5505:5323:5605:5323:56
icon06029
Outram Pk Stn Exit 1
Outram Rd
EW16NE3TE17Outram Park
Singapore General Hospital
05:5523:5705:5523:5805:5523:58
icon05012
Bef Pearl's Hill Terr
Eu Tong Sen St
EW16NE3TE17Outram Park 05:5723:5905:5700:0005:5700:00
icon05022
Aft Chinatown Stn Exit D
Eu Tong Sen St
NE4DT19Chinatown
Chinatown Point
People's Park Centre
State Courts
Yue Hwa Building
05:5900:0105:5900:0205:5900:02
icon04222
Clarke Quay Stn Exit E
Eu Tong Sen St
NE5Clarke Quay
Clarke Quay Central
06:0100:0306:0100:0406:0100:04
icon04223
Old Hill St Police Stn
Hill St
Central Fire Station
Funan
Registry of Marriages
06:0200:0406:0200:0506:0200:05
icon04151
Cath of The Good Shepherd
Victoria St
Capitol Theatre
CHIJMES
SMU
06:0500:0706:0500:0806:0500:08
icon01013
St. Joseph's Ch
Victoria St
National Library Building 06:0600:0806:0600:1006:0600:10
icon01112
Opp Bugis Stn Exit C
Victoria St
EW12DT14Bugis
Bugis Junction
Bugis+
Bugis Street
06:0800:1006:0800:1106:0800:11
icon07551
Fu Lu Shou Cplx
Rochor Rd
06:0900:1106:0900:1306:0900:13
icon07531
Rochor Stn
Rochor Canal Rd
DT13Rochor 06:1000:1206:1000:1406:1000:14
icon40011
Little India Stn Exit A
Bt Timah Rd
NE7DT12Little India 06:1200:1306:1200:1606:1200:16
icon40101
KK Women & Children Hosp
Kg Java Rd
KK Women's and Children's Hospital 06:1400:1506:1400:1806:1400:18
icon50011
Opp Parish of Christ Ch
Kg Java Rd
06:1500:1606:1500:1806:1500:18
icon50021
United Sq/Bef Novena Stn
Thomson Rd
NS20Novena 06:1800:1806:1800:2106:1800:21
icon50031
Opp Novena Ch
Thomson Rd
NS20Novena 06:2000:2006:2000:2306:2000:23
icon50041
Novena Lodge
Thomson Rd
06:2100:2006:2100:2406:2100:24
icon50051
Thomson Med Ctr
Thomson Rd
06:2200:2106:2200:2506:2200:25
icon51011
Opp Tan Tong Meng Twr
Thomson Rd
06:2300:2206:2300:2606:2300:26
icon51021
Old Police Acad
Thomson Rd
06:2400:2306:2400:2806:2400:28
icon51031
S'pore Polo Club
Thomson Rd
06:2500:2406:2500:2906:2500:29
icon51051
Aft Andrew Rd
Thomson Rd
06:2600:2506:2600:3006:2600:30
icon51081
Opp Marymount Convent Sch
Marymount Rd
06:2800:2606:2800:3106:2800:31
icon53111
Bef Marymount Lane
Marymount Rd
06:2900:2706:2900:3206:2900:32
icon53121
Marymount Stn
Marymount Rd
CC16Marymount 06:3100:2806:3100:3306:3100:33
icon53131
Aft Jadescape
Marymount Rd
06:3300:2906:3300:3406:3300:34
icon53141
Opp Whitley Sec Sch
Marymount Rd
06:3400:3006:3400:3506:3400:35
icon53151
Opp Blk 263A CP
Marymount Rd
06:3500:3206:3500:3706:3500:37
icon53161
Marymount CC
Marymount Rd
06:3700:3306:3700:3806:3700:38
icon54011
Blk 207
Ang Mo Kio Ave 6
06:3800:3406:3800:3906:3800:39
icon54031
Opp Al-Muttaqin Mque
Ang Mo Kio Ave 6
Masjid Al-Muttaqin 06:4000:3506:4000:4006:4000:40
icon54041
Opp Courts Ang Mo Kio
Ang Mo Kio Ave 6
Ang Mo Kio Polyclinic 06:4200:3706:4100:4206:4200:42
icon54051
Bef Ang Mo Kio Ave 5
Ang Mo Kio Ave 6
06:4300:3706:4200:4206:4300:42
icon55201
Aft Blk 648
Ang Mo Kio Ave 6
06:4400:3806:4300:4306:4400:43
icon55181
Opp Yio Chu Kang Stn
Ang Mo Kio Ave 6
NS15Yio Chu Kang 06:4500:3906:4400:4406:4500:44
icon55171
Castle Green
Ang Mo Kio Ave 6
06:4700:4106:4600:4606:4700:46
icon55241
Aft Yio Chu Kang Rd
Lentor Ave
06:4800:4206:4700:4706:4800:47
icon55251
Countryside Est
Lentor Ave
06:4900:4306:4800:4806:4900:48
icon55261
Bullion Pk Condo
Lentor Ave
06:5000:4406:4900:4906:5000:49
icon59011
Bef Sg Seletar Bridge
Lentor Ave
06:5300:4606:5200:5106:5200:51
icon59021
Bef Yishun Ave 1
Lentor Ave
06:5400:4806:5300:5306:5400:53
icon59031
Opp Yishun Sports Hall
Yishun Ave 2
06:5500:4806:5400:5306:5400:53
icon59041
Bef Khatib Stn
Yishun Ave 2
NS14Khatib 06:5600:4906:5500:5406:5500:54
icon59051
Blk 790
Yishun Ave 2
06:5800:5106:5600:5606:5700:56
icon58991
Blk 767
Yishun Ave 2
07:0000:5306:5800:5806:5900:58
icon59009
Yishun Int(Alighting)
Yishun Ave 2
NS13Yishun
Northpoint City
Nee Soon Central CC
07:0200:5507:0001:0007:0101:00

Historical Information[edit]

Operator Route Year Date Service changes
SMRT Buses
Known as Trans Island prior to 10 May 2004
Yishun ↔ Bukit Merah 1985 16 February Introduced between Yishun Ctrl Ter and Bt Merah Int.
1987 6 April Skips removed bus stop before College Rd along Outram Rd.
23 August Amended to Yishun Int.
27 September Amended to ply the extended Eu Tong Sen St towards Yishun Int to facilitate the first stage of road expansion along New Bridge Rd.
1 November Amended to ply Eu Tong Sen St to facilitate the second stage of road expansion along New Bridge Rd.
13 December Serves new staggered bus stop opposite Peninsula Plaza along Nth Bridge Rd, skipping the bus stop outside St Andrew's Cath.
1988 20 March Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
1990 22 July Serves additional bus stop outside Ellenborough Mkt along Eu Tong Sen St.
1997 7 December Amended to ply Sth Bridge Rd, Neil Rd and Cantonment Rd with the partial closure of New Bridge Rd to facilitate the construction of NE4DT19Chinatown station on the North East Line.
2001 18 February Serves the bus stop outside Novena Stn along Thomson Rd, skipping the bus stop outside Novena Ch.
2002 20 April Amended to ply Upp Cross St and the reinstated New Bridge Rd, skipping Sth Bridge Rd, Neil Rd and Cantonment Rd.
2003 TBC Skips a pair of bus stops near LP 94 and opposite LP 91 along Lentor Ave.
2009 1 June Designated wheelchair-accessible bus service (WAB). WAB
2015 14 March Amended to Yishun Temp Int.
SBS Transit
(Current)
2018 25 March Operations transferred to SBS Transit.
2019 8 September Amended to Yishun Integrated Transport Hub.
2020 12 January Skips a pair of removed bus stops under and after Lentor Flyover along Lentor Ave.
8 November Skips the bus stop opposite SLF Cplx along Thomson Rd to facilitate the construction of the North-South Corridor (NSC).

External Links[edit]

icon Seletar Bus Package [ VTE ]
Services 247070M7176130133135138138M162850E851851e852860 SBS Transit
Tender Awarded
City Direct Services 652668
Ang Mo Kio Feeders 261262265268269
Yishun Feeders 800803804805806807811812
Defunct 162M
Bus Fleet Seletar Depot (SEDEP)
Single Decker BYD K9 • MAN NL323F (Euro V, Batch 2Euro V, Batch 3Euro VI) • Mercedes-Benz O530 Citaro (Batch 1Batch 2Batch 3) • Scania K230UB (Euro V, Batch 2)
Double Decker MAN ND323F (Euro V, Batch 3Euro VI, Batch 1) • Volvo B9TL (WEG2, Batch 1WEG2, Batch 4)
Articulated Buses MAN NG363F