Gare Routière, 290 Place de la Gare, 73000 Chambéry
Gare Routière de Grenoble, 11 Place de la Gare, 38000 Grenoble
If you have an open return ticket, secure your seat in the bus on time and book a return reservation online, 24 hours before departure. When entering the bus, you need to show return ticket and seat reservation to the driver.