Calculations with different methods
- 412.456 miles
- 663.783 kilometers
- 358.414 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
- 411.493 miles
- 662.233 kilometers
- 357.577 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Pittsburgh International Airport (PIT) to O'Hare International Airport (ORD) is 1 hour 16 minutes.
Time difference and current local times
The time difference between Pittsburgh and Chicago is 1 hour. Chicago is 1 hour behind Pittsburgh.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 82 kg (180 pounds).
Pittsburgh to Chicago flight map.
Frequent Flyer Miles Calculator
Pittsburgh (PIT) → Chicago (ORD).