SBS Transit Bus Service 109A

SBS Transit Bus Service 109A is a Short-Trip Service variant of Bus Service 109.

The route operates from Serangoon Bus Interchange and ends at Hougang Avenue 4 (Blk 913), operating only during the weekday evening peak hours.

S'Goon Int
→ Blk 913
66009 S'Goon Int B2 NE12CC13 S'goon Ave 2
66361 Blk 319 S'goon Ave 2
66041 Blk 230 Boundary Rd
66051 Opp Blk 257 Boundary Rd
63361 Opp S'Goon Sports Cplx Yio Chu Kang Link
63181 Bef St. Helier's Ave Yio Chu Kang Rd
63191 Aft Serangoon Nth Ave 1 Yio Chu Kang Rd
63201 Affinity At Serangoon Yio Chu Kang Rd
63211 Blk 138 Yio Chu Kang Rd
64101 Opp Gracehaven S Army Yio Chu Kang Rd
64491 Hougang 1 Hougang Ave 9
64481 Bet Blks 930/931 Hougang Ave 9
64471 Blk 917 Hougang Ave 9
64601 Blk 919 Hougang Ave 4
64611 Blk 913 Hougang Ave 4
Route Overview
Route WAB_logo_20px Serangoon Bus Interchange → Hougang Avenue 4 (Blk 913)
Passes Through Boundary Rd, Yio Chu Kang Rd, Hougang Ave 9
Route Length 5.2 km
Travelling Time 26 mins
Operator Information
BCM Route Package Serangoon–Eunos Bus Package
Current Operator SBS Transit Ltd
Current Depot Hougang Bus Depot (HGDEP)
Current Fleet Single-deck & Double-deck buses
Operating Hours
Departure Times from Serangoon
Weekdays, except Public Holidays
17:48 – 20:03
Fare Information
Fare Charges regular distance fares

Short Trip Service 109A is a trunk service operating from Serangoon Bus Interchange and ends at Hougang Avenue 4 (Blk 913).

As a Short-Trip Service, the route operates on Weekdays, during the evening peak hours. It mainly supplements the high demand for Service 109 from Serangoon MRT/Int to residential estates along Yio Chu Kang Road and at Hougang.

MRT Station Served


Departure Timings
  • From Serangoon Interchange:
    Weekdays: 17:48, 18:06, 18:24, 18:42, 19:00, 19:18, 19:34, 19:48 & 20:03


Operator History:
  • 2014 – Present: SBS Transit Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2025 under the Serangoon–Eunos Bus Package.

Route History:
  • 2014 (26 May): Introduced from Serangoon Int to Hougang Ave 4 (Blk 913) during weekday evening peak hours
  • 2019 (25 Mar): Additional trips for Service 109A

Back to Bus Service 109
Back to Bus Services
Back to Bus Articles

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