How far is Toronto from Chicago?
There are several ways to calculate distances between Chicago and Toronto. Here are two common methods:Vincenty's formula (applied above)
- 446.979 miles
- 719.342 kilometers
- 388.414 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 445.894 miles
- 717.596 kilometers
- 387.471 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Estimated flight time from O'Hare International Airport (ORD) to Billy Bishop Toronto City Airport (YTZ) is 1 hour 20 minutes.
Time difference and current local times
The time difference between Chicago and Toronto is 1 hour. Toronto is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 91 kg (201 pounds).
Chicago to Toronto flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Toronto (YTZ).