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Chicago–Houston | ORD–IAH
Calculations with different methods
- 925.103 miles
- 1488.809 kilometers
- 803.892 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
- 926.249 miles
- 1490.654 kilometers
- 804.889 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 George Bush Intercontinental Airport (IAH) is 2 hours 15 minutes.
Time difference and current local times
There is no time difference between Chicago and Houston.
Chicago to Houston flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Houston (IAH).