Air Miles Calculator

Distance between Chicago, IL (ORD) and Houston, TX (IAH)

Distance from Chicago to Houston (O'Hare International Airport – George Bush Intercontinental Airport) is 925 miles / 1489 kilometers / 804 nautical miles.

How far is Houston from Chicago?

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

Vincenty's formula (applied above)
  • 925.103 miles
  • 1488.809 kilometers
  • 803.892 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
  • 926.249 miles
  • 1490.654 kilometers
  • 804.889 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).

Flight duration

Estimated flight time from O'Hare International Airport (ORD) to George Bush Intercontinental Airport (IAH) is 2 hours 15 minutes.

Time difference and current local times

There is no time difference between Chicago and Houston.

Time Difference

Chicago
Houston

Chicago, IL

 CST

Houston, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 133 kg (294 pounds).

Airport information


A O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

Map

Chicago to Houston flight map.

Frequent Flyer Miles Calculator

Chicago (ORD) → Houston (IAH).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
925
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
925

Round trip?