Air Miles Calculator

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

Distance from Houston to Chicago (William P. Hobby Airport – O'Hare International Airport) is 945 miles / 1521 kilometers / 821 nautical miles.

How far is Chicago from Houston?

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

Vincenty's formula (applied above)
  • 944.852 miles
  • 1520.593 kilometers
  • 821.054 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
  • 946.091 miles
  • 1522.586 kilometers
  • 822.130 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 William P. Hobby Airport (HOU) to O'Hare International Airport (ORD) is 2 hours 17 minutes.

Time difference and current local times

There is no time difference between Houston and Chicago.

Time Difference

Houston
Chicago

Houston, TX

 CST

Chicago, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 147 kg (324 pounds).

Airport information


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

B 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

Map

Houston to Chicago flight map.

Frequent Flyer Miles Calculator

Houston (HOU) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
945
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
945

Round trip?