Calculations with different methods
- 6578.878 miles
- 10587.677 kilometers
- 5716.888 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
- 6563.200 miles
- 10562.447 kilometers
- 5703.265 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Beijing Capital International Airport (PEK) to O'Hare International Airport (ORD) is 12 hours 57 minutes.
Time difference and current local times
The time difference between Beijing and Chicago is 14 hours. Chicago is 14 hours behind Beijing.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 844 kg (1 861 pounds).
Beijing to Chicago flight map.
Frequent Flyer Miles Calculator
Beijing (PEK) → Chicago (ORD).