How far is Decatur, IL, from Longview, TX?

The distance between Longview (East Texas Regional Airport) and Decatur (Decatur Airport) is 609 miles / 980 kilometers / 529 nautical miles.

The driving distance from Longview (GGG) to Decatur (DEC) is 727 miles / 1170 kilometers, and travel time by car is about 13 hours 32 minutes.

Distance from Longview to Decatur

There are several ways to calculate the distance from Longview to Decatur. Here are two standard methods:

Vincenty's formula (applied above)

• 608.636 miles
• 979.504 kilometers
• 528.890 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

• 609.151 miles
• 980.333 kilometers
• 529.338 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 Longview to Decatur?

The estimated flight time from East Texas Regional Airport to Decatur Airport is 1 hour and 39 minutes.

What is the time difference between Longview and Decatur?

There is no time difference between Longview and Decatur.

Flight carbon footprint between East Texas Regional Airport (GGG) and Decatur Airport (DEC)

On average, flying from Longview to Decatur generates about 114 kg of CO2 per passenger, and 114 kilograms equals 251 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Longview to Decatur

See the map of the shortest flight path between East Texas Regional Airport (GGG) and Decatur Airport (DEC).

Airport information

Origin	East Texas Regional Airport
City:	Longview, TX
Country:	United States
IATA Code:	GGG
ICAO Code:	KGGG
Coordinates:	32°23′2″N, 94°42′41″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