# Distance between Houston, TX (IAH) and Champaign, IL (CMI)

Flight distance from Houston to Champaign (Houston George Bush Intercontinental Airport – University of Illinois Willard Airport) is 800 miles / 1287 kilometers / 695 nautical miles. Estimated flight time is 2 hours 0 minutes.

Driving distance from Houston (IAH) to Champaign (CMI) is 926 miles / 1491 kilometers and travel time by car is about 16 hours 24 minutes.

## Map of flight path and driving directions from Houston to Champaign.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and University of Illinois Willard Airport (CMI).

## How far is Champaign from Houston?

There are several ways to calculate distances between Houston and Champaign. Here are two common methods:

Vincenty's formula (applied above)
• 799.895 miles
• 1287.307 kilometers
• 695.090 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
• 800.827 miles
• 1288.806 kilometers
• 695.899 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 George Bush Intercontinental Airport
City: Houston, TX
Country: United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B University of Illinois Willard Airport
City: Champaign, IL
Country: United States
IATA Code: CMI
ICAO Code: KCMI
Coordinates: 40°2′21″N, 88°16′41″W

## Time difference and current local times

There is no time difference between Houston and Champaign.

CST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 135 kg (297 pounds).

## Frequent Flyer Miles Calculator

Houston (IAH) → Champaign (CMI).

Distance:
800
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
800

Round trip?