# Distance between Houston, TX (HOU) and Rockford, IL (RFD)

Flight distance from Houston to Rockford (Houston William P. Hobby Airport – Chicago Rockford International Airport) is 931 miles / 1499 kilometers / 809 nautical miles. Estimated flight time is 2 hours 15 minutes.

Driving distance from Houston (HOU) to Rockford (RFD) is 1086 miles / 1747 kilometers and travel time by car is about 19 hours 35 minutes.

## 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).

## Airport information

A Houston William P. Hobby Airport
City: Houston, TX
Country: United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″W

B Chicago Rockford International Airport
City: Rockford, IL
Country: United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

## Time difference and current local times

There is no time difference between Houston and Rockford.

CDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 146 kg (322 pounds).

## Frequent Flyer Miles Calculator

Houston (HOU) → Rockford (RFD).

Distance:
931
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
931

Round trip?