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.
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Chicago - Houston
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, IL
Houston, TX
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 145 kg (321 pounds).
Airport information
| A | O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | 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 |
| IATA Code: | IAH |
| ICAO Code: | KIAH |
| Coordinates: | 29°59′3″N, 95°20′29″W |
Chicago to Houston flight path
Shortest flight path between O'Hare International Airport (ORD) and George Bush Intercontinental Airport (IAH).
Frequent Flyer Miles Calculator
Chicago (ORD) → Houston (IAH).
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