Chicago to Toronto distance

Chicago to Toronto by road

The fastest driving route is 512 miles (824 km) long and takes about 9 hr 35 min without stops or traffic. It runs mostly on Highway 401 (223 mi), I-94 (201 mi), and I-90 (32.9 mi).

Of the 512 mi, 281 mi are in the United States and 231 mi are in Canada. That’s an average of 53 mph (86 km/h). AAA recommends a break every two hours or 100 miles: with 4 stops of 20 minutes, the trip takes about 10 hr 55 min. The time is OSRM’s estimate with OpenStreetMap data: no traffic and speeds somewhat below the limits, so real trips can differ.

Straight-line distance and bearing

In a straight line, the shortest distance over the Earth’s surface, Chicago and Toronto are 438 miles (706 km) apart. That’s the geodesic on the WGS84 ellipsoid, the distance “as the crow flies”.

The road is 17% longer: for every 100 miles in a straight line you drive 117. That’s a normal detour between two cities. Of the 16 US–Canada and US–Mexico driving pairs in this series, it ranks 12th for detour (the average is 22%).

From Chicago, Toronto lies to the east (bearing 70°), and from Toronto, Chicago lies to the west. The straight line reaches Toronto on a bearing of 76°: on a sphere the bearing keeps changing along the way, which is why the shortest route looks slightly curved on a flat map.

Halfway between Chicago and Toronto

Halfway along the straight line, 219 miles (353 km) from each city, is the point 42.8527° N, 83.5861° W. It falls near Village of Clarkston (Michigan, pop. 903), 11.8 mi away. The nearest town of 20,000 people or more is Windsor (Ontario, Canada, pop. 229,660), 48.0 mi away.

By road, the halfway point is 256 miles (412 km) from each city, near Barton Hills (Michigan, pop. 323), 15.0 mi away. The nearest town of 20,000 people or more is LaSalle (Ontario, Canada, pop. 32,721), 23.4 mi away. The two midpoints are 32.8 mi apart: if you want to meet halfway, the one on the road is the useful one.

Time difference and flight

Toronto is 1 hour ahead of Chicago all year (Eastern Time versus Central Time): when it’s 12:00 in Chicago, it’s 13:00 in Toronto.

A direct flight would take about 1 hr 25 min. That’s an estimate: 30 minutes for takeoff, climb, descent and landing, plus the 706 km straight line at 800 km/h (about 497 mph), a typical airliner cruising speed. Real schedules depend on wind, routing and airports, and not every pair has a direct flight.

The two cities

Chicago has 2.7 million people (Census Bureau estimate for 2025) and Toronto 2.8 million people (GeoNames).