Calculations with different methods
- 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).
Estimated flight time from O'Hare International Airport (ORD) to Calgary International Airport (YYC) is 3 hours 7 minutes.
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 173 kg (382 pounds).
Chicago to Calgary flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Calgary (YYC).