Air Miles Calculator

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

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

Calculations with different 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).

Flight duration

Estimated flight time from George Bush Intercontinental Airport (IAH) to 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

 CST

Chicago, IL

 CST

Airport information


A 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 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

Flight map from Houston to Chicago.

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?