Air Miles Calculator

Distance between Houston, TX (HOU) and Decatur, IL (DEC)

Distance from Houston to Decatur (William P. Hobby Airport – Decatur Airport) is 791 miles / 1273 kilometers / 687 nautical miles.

How far is Decatur from Houston?

There are several ways to calculate distances between Houston and Decatur. Here are two common methods:

Vincenty's formula (applied above)
  • 790.945 miles
  • 1272.903 kilometers
  • 687.312 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
  • 792.030 miles
  • 1274.649 kilometers
  • 688.255 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 William P. Hobby Airport (HOU) to Decatur Airport (DEC) is 1 hour 59 minutes.

Time difference and current local times

There is no time difference between Houston and Decatur.

Time Difference

Houston
Decatur

Houston, TX

 CST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 134 kg (295 pounds).

Airport information


A 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 Decatur Airport
City: Decatur, IL
Country: United States Flag of United States
IATA Code: DEC
ICAO Code: KDEC
Coordinates: 39°50′4″N, 88°51′56″W

Map

Houston to Decatur flight map.

Frequent Flyer Miles Calculator

Houston (HOU) → Decatur (DEC).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
791
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
791

Round trip?