Air Miles Calculator logo

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 20 hours 51 minutes.

Houston – Chicago

Distance arrow
945
Miles
Distance arrow
1521
Kilometers
Distance arrow
821
Nautical miles

How far is Chicago from Houston?

There are several ways to calculate distances between Los Angeles 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 Houston William P. Hobby Airport to Chicago O'Hare International Airport is 2 hours 17 minutes.

Time difference

There is no time difference between Houston and Chicago.

Carbon dioxide emissions

On average flying from Houston to Chicago generates about 147 kg of CO2 per passenger, 147 kilograms is equal to 324 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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).

Airport information

Origin 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
Destination 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