Map of flight path and driving directions from Chicago to Harrison.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Boone County Airport (HRO).
How far is Harrison from Chicago?
There are several ways to calculate distances between Chicago and Harrison. Here are two common methods:Vincenty's formula (applied above)
- 484.670 miles
- 780.001 kilometers
- 421.167 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
- 484.782 miles
- 780.181 kilometers
- 421.264 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 Chicago and Harrison.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 96 kg (212 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Harrison (HRO).