There are dozens of express bus service from Singapore to KL. A few of the largest express bus operators like Konsortium Express & Tours, Sri Maju Express and NICE offer almost hourly trip between Singapore and KL.
Most of the bus operators will depart at Golden Mile Complex. But they are some operators which depart at other location like The Plaza ,Key Point , Harbour Front, Boon Lay Shopping Centre and many more. Please check with respective bus operator before buy the ticket. Most of Travelers are advised to book their tickets early online in website such as
www.easibook.comLargest Express Bus Tickets Website (Singapore & Malaysia) which provides the online booking of most express buses tickets from Singapore to Malaysia and within Malaysia itself Can more comfortable and economical.