How far is Decatur, IL, from Houston, TX?
The distance between Houston (Houston George Bush Intercontinental Airport) and Decatur (Decatur Airport) is 772 miles / 1242 kilometers / 671 nautical miles.
The driving distance from Houston (IAH) to Decatur (DEC) is 903 miles / 1453 kilometers, and travel time by car is about 16 hours 43 minutes.
Houston George Bush Intercontinental Airport – Decatur Airport
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Distance from Houston to Decatur
There are several ways to calculate the distance from Houston to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 771.640 miles
- 1241.833 kilometers
- 670.536 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 772.630 miles
- 1243.428 kilometers
- 671.398 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).
How long does it take to fly from Houston to Decatur?
The estimated flight time from Houston George Bush Intercontinental Airport to Decatur Airport is 1 hour and 57 minutes.
What is the time difference between Houston and Decatur?
Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and Decatur Airport (DEC)
On average, flying from Houston to Decatur generates about 132 kg of CO2 per passenger, and 132 kilograms equals 291 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 Decatur
See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Decatur Airport (DEC).
Airport information
| Origin | Houston 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 |
| Destination | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |