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)
- 436.227 miles
- 702.040 kilometers
- 379.071 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
- 435.180 miles
- 700.354 kilometers
- 378.161 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 Toronto Pearson International Airport (YYZ) is 1 hour 19 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 89 kg (197 pounds).
Chicago to Toronto flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Toronto (YYZ).