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|
|Journey Time||~30 mins|
|BCM Route Package||Serangoon – Eunos Bus Package|
|Current Operator||SBS Transit Ltd|
|Current Depot||Hougang Bus Depot|
|Current Fleet||12-metre Double Deck Buses:
– Volvo B9TL
||Weekdays, except Public Holidays
From Serangoon Interchange: 1753hrs, 1810hrs, 1828hrs, 1843hrs, 1857hrs, 1900hrs, 1930hrs, 1943hrs, 1958hrs & 2013hrs
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: 1753hrs, 1810hrs, 1828hrs, 1843hrs, 1857hrs, 1900hrs, 1930hrs, 1943hrs, 1958hrs & 2013hrs
Fare: Charges regular distance fares for trunk services. See Bus Fares.
MRT Station Served
- NE12CC13 Serangoon
- 2014 – Present: SBS Transit Ltd
- 2014 (26 May): Introduced from Serangoon Int to Hougang Ave 4 (Blk 913)
- 2019 (25 Mar): Additional trips for Service 109A