Singapore Buses route 51

Service 51 is a trunk service plying between Hougang Central and Jurong East, passing through Hougang Ave 3, Eunos, Bugis, Clarke Quay, Alexandra, Commonwealth, Pasir Panjang, West Coast and Pandan Gardens. At 37.7km, it is among the longest bidirectional routes in Singapore.

Service 51 is a major trunk route connecting West and Northeast of Singapore, and an important trunk route in many of its catchment areas. From Hougang Central, the route passes through Hougang Avenue 3, Eunos, Geylang, Bugis and Clarke Quay, continuing west to Havelock, Alexandra, Queenstown, Pasir Panjang, West Coast and Pandan Gardens, terminating at Jurong East Interchange.

Due to its long route length and congestion prone areas, journey times are often increased during peak hours. A full journey can reach 210mins (3hrs and 30mins) from Jurong East to Hougang during PM Peak, as compared to around 150mins off-peak.