Map of flight path and driving directions from Houston to Rockford.
Shortest flight path between Houston William P. Hobby Airport (HOU) and Chicago Rockford International Airport (RFD).
How far is Rockford from Houston?
There are several ways to calculate distances between Houston and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 931.459 miles
- 1499.037 kilometers
- 809.415 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
- 932.881 miles
- 1501.327 kilometers
- 810.652 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 Rockford.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 146 kg (322 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → Rockford (RFD).