Hanoi to Sapa bus companies often offer pick-up from the Old Quarter and around Hoan Kiem Lake. Buses of some companies depart from the Old Quarter. They take the fastest time to get from Hanoi to Sapa- it will take about 5-6 hours to drive. The bus will make two stops along the way, 15-30 minutes each, at specific locations where you can use the restroom and buy food. The bus back to Hanoi will pick you up from Sapa bus station, which is near Sapa’s new market.