Map of flight path and driving directions from Chicago to Calgary.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Calgary International Airport (YYC).
How far is Calgary from Chicago?
There are several ways to calculate distances between Chicago and Calgary. Here are two common methods:Vincenty's formula (applied above)
- 1385.164 miles
- 2229.206 kilometers
- 1203.675 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
- 1382.098 miles
- 2224.271 kilometers
- 1201.010 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 Calgary is 1 hour. Calgary is 1 hour behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 172 kg (380 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Calgary (YYC).