How far is Houston from Chicago?
There are several ways to calculate distances between Chicago and Houston. Here are two common methods:Vincenty's formula (applied above)
- 944.852 miles
- 1520.593 kilometers
- 821.054 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
- 946.091 miles
- 1522.586 kilometers
- 822.130 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 O'Hare International Airport (ORD) to William P. Hobby Airport (HOU) is 2 hours 17 minutes.
Time difference and current local times
There is no time difference between Chicago and Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 147 kg (324 pounds).
Chicago to Houston flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Houston (HOU).