How far is Chicago from Houston?
There are several ways to calculate distances between Houston and Chicago. Here are two common methods:Vincenty's formula (applied above)
- 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 – the shortest distance between two points).
Estimated flight time from George Bush Intercontinental Airport (IAH) to O'Hare International Airport (ORD) is 2 hours 15 minutes.
Time difference and current local times
There is no time difference between Houston and Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 145 kg (321 pounds).
Houston to Chicago flight map.
Frequent Flyer Miles Calculator
Houston (IAH) → Chicago (ORD).