The route operates from Serangoon Bus Interchange and ends at Hougang Avenue 4 (Blk 913), operating only during the weekday evening peak hours.
|Route||Serangoon Bus Interchange → Hougang Avenue 4 (Blk 913)|
|Passes Through||Boundary Rd, Yio Chu Kang Rd, Hougang Ave 9|
|Route Length||5.2 km|
|Traveling Time||26 mins|
|BCM Route Package||Serangoon – Eunos Bus Package|
|Current Operator||SBS Transit Ltd|
|Current Depot||Hougang Bus Depot (HGDEP)|
|Current Fleet||12-metre Single Deck Bus
– Scania K230UB
|12-metre Double Deck Bus
– Volvo B9TL
|Departure Times from Serangoon
||Weekdays, except Public Holidays|
|17:53 – 20:13|
|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.
- From Serangoon Interchange:
Weekdays: 17:53, 18:10, 18:28, 18:43, 18:57, 19:09, 19:30, 19:43, 19:58 & 20:13
MRT Station Served
- NE12CC13 Serangoon
- 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.
- 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