Map of flight path and driving directions from Chicago to Toronto.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Toronto Pearson International Airport (YYZ).
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).
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).
Frequent Flyer Miles Calculator
Chicago (ORD) → Toronto (YYZ).