London, ON → Detroit, MI

The drive from London, Ontario to Detroit, Michigan is one of the most straightforward border crossings in the Great Lakes region, taking you through the heart of southwestern Ontario before delivering you into Michigan's urban landscape. You'll primarily follow Highway 401 eastbound from London toward the Windsor area, then transition onto Highway 2 (also known as the Macdonald-Cartier Freeway in this section) as you approach the international border. Once you cross into Michigan at the Windsor-Detroit tunnel or Ambassador Bridge, you'll merge onto Interstate 75, which carries you directly into downtown Detroit. This route covers approximately 133 miles and typically takes just over two hours, making it an efficient journey that most drivers can complete in a single stretch.

The terrain along this route is characteristically flat to gently rolling, reflecting the glaciated landscape of the Great Lakes basin. You'll traverse primarily agricultural and light industrial regions as you leave London, with farmland dominating the landscape between London and Windsor. As you approach Windsor and cross into Detroit, the terrain remains notably flat, though you'll notice the transition from rural Ontario into increasingly developed suburban and urban areas. The Detroit River itself, which you'll cross via tunnel or bridge, represents the only significant geographic feature of note on this relatively uniform landscape.

Notable landmarks include the city of Windsor itself, which sits directly across from Detroit and serves as Canada's gateway to Michigan, and the impressive Ambassador Bridge or Windsor Tunnel—both engineering achievements worth noting even as you cross them. Upon entering Detroit, you'll immediately notice the shift from highway driving to urban navigation, with downtown Detroit's skyline becoming visible as you drive south on I-75. The Motown Museum and various historic automotive landmarks are within close reach once you arrive, though they're not directly on the route itself.

Spring through early fall represents the most pleasant season for this drive, when roads are clear and visibility is excellent. Winter conditions, particularly from December through February, can present challenges with snow and icy patches, especially in the final stretch approaching Detroit. That said, modern highway maintenance on both sides of the border keeps this route relatively manageable year-round compared to more northern routes through Ontario.

The 133-mile drive from London, Ontario to Detroit, Michigan takes approximately 2h 13m under normal conditions. Weather along this route can vary significantly, especially across open plains where severe weather and high winds can develop quickly. Route Outlook helps you find the safest time to travel by showing you weather conditions at every point along your route, timed to when you'll actually be there.

Common Weather Hazards on This Route

• Winter storms and heavy snowfall (November through April)
• Black ice on mountain passes and bridges

Seasonal Driving Considerations

The Midwest corridor of this route is susceptible to rapid weather changes. Severe thunderstorms and tornadoes are a real threat from April through June, while winter brings heavy lake-effect snow, ice storms, and dangerously low wind chill. Flat terrain means high crosswinds can affect vehicle stability year-round, especially for taller vehicles. Spring flooding can also close highway underpasses and low-lying road segments.

Best Time to Drive London to Detroit

For shorter trips like this 133-mile drive, morning departures typically offer the best conditions with lighter traffic and better visibility. Avoid rush hour periods (7-9 AM and 4-7 PM) if possible.

Driving Strategy

At 133 miles, the London to Detroit drive is short enough to complete in a single stretch. Still, check conditions along the route before you leave — a quick glance at live traffic cameras can confirm road visibility and surface conditions. If bad weather is forecasted for a narrow window, adjusting your departure by even an hour can make a significant difference in safety.

Frequently Asked Questions