Map of flight path and driving directions from Chicago to Toronto.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Billy Bishop Toronto City Airport (YTZ).
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).
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 (200 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Toronto (YTZ).