Map of flight path and driving directions from Houston to Chicago.
Shortest flight path between Houston William P. Hobby Airport (HOU) and Chicago O'Hare International Airport (ORD).
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)
- 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).
Time difference and current local times
There is no time difference between Houston and Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 147 kg (324 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → Chicago (ORD).