Air Miles Calculator

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

Flight distance from Houston to Chicago (Houston William P. Hobby Airport – Chicago O'Hare International Airport) is 945 miles / 1521 kilometers / 821 nautical miles. Estimated flight time is 2 hours 17 minutes.

Driving distance from Houston (HOU) to Chicago (ORD) is 1105 miles / 1779 kilometers and travel time by car is about 19 hours 36 minutes.

Map of flight path and driving directions from Houston to Chicago.

Shortest flight path between Houston William P. Hobby Airport (HOU) and Chicago O'Hare International Airport (ORD).

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).

Airport information


A Houston 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 Chicago 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

Time difference and current local times

There is no time difference between Houston and Chicago.

Time Difference

Houston, TX

 CST

Chicago, IL

 CST

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Houston (HOU) → Chicago (ORD).

Distance:
945
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
945

Round trip?