Calculations with different methods
- 7793.671 miles
- 12542.698 kilometers
- 6772.515 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
- 7781.154 miles
- 12522.554 kilometers
- 6761.638 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 Hong Kong International Airport (HKG) is 15 hours 15 minutes.
Time difference and current local times
The time difference between Chicago and Hong Kong is 13 hours. Hong Kong is 13 hours ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 1 024 kg (2 258 pounds).
Chicago to Hong Kong flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Hong Kong (HKG).