Air Miles Calculator

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

Distance from Houston to Chicago (Houston George Bush Intercontinental Airport – Chicago O'Hare International Airport) is 925 miles / 1489 kilometers / 804 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)
  • 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 Houston George Bush Intercontinental Airport (IAH) to Chicago O'Hare International Airport (ORD) is 2 hours 15 minutes.

Time difference and current local times

There is no time difference between Houston and Chicago.

Time Difference

Houston
Chicago

Houston, TX

 CDT

Chicago, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 145 kg (321 pounds).

Airport information


A Houston 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

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

Houston to Chicago flight path

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Chicago O'Hare International Airport (ORD).

Frequent Flyer Miles Calculator

Houston (IAH) → Chicago (ORD).

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?