Driving from Montreal to Quebec City is remarkably easy and is one of the most straightforward road trips in Canada. The two cities are connected primarily by Autoroute 20 (The Jean-Lesage Highway) on the south shore of the St. Lawrence River or Autoroute 40 (The Felix-Leclerc Highway) on the north shore. The journey is approximately 250 kilometers (155 miles) and typically takes about 2.5 to 3 hours in clear conditions. Both highways are well-maintained, multi-lane divided roads with plenty of "Halte-routière" (service centers) for fuel and food. While the drive is simple, there are two key factors to watch out for: winter weather and traffic. During a Quebec winter, snowstorms can make the highway treacherous with black ice and "white-out" conditions, requiring winter tires (which are mandatory by law in Quebec from December to March). Additionally, exiting Montreal during Friday afternoon rush hour or entering Quebec City during peak times can add significant delays. For a more scenic but longer route, you can take the "Chemin du Roy" (Highway 138), which passes through historic villages, but for speed and ease, the 40 or 20 is the best choice.