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Chicago–Haikou | ORD–HAK
Calculations with different methods
- 8012.796 miles
- 12895.345 kilometers
- 6962.929 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
- 8000.948 miles
- 12876.278 kilometers
- 6952.634 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 Haikou Meilan International Airport (HAK) is 15 hours 40 minutes.
Time difference and current local times
The time difference between Chicago and Haikou is 13 hours. Haikou is 13 hours ahead of Chicago.
Chicago to Haikou flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Haikou (HAK).