How far is Sioux City, IA, from Decatur, IL?

The distance between Decatur (Decatur Airport) and Sioux City (Sioux Gateway Airport) is 430 miles / 693 kilometers / 374 nautical miles.

The driving distance from Decatur (DEC) to Sioux City (SUX) is 544 miles / 876 kilometers, and travel time by car is about 10 hours 4 minutes.

Distance from Decatur to Sioux City

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

Vincenty's formula (applied above)

• 430.319 miles
• 692.531 kilometers
• 373.937 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

• 429.494 miles
• 691.204 kilometers
• 373.220 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 Decatur to Sioux City?

The estimated flight time from Decatur Airport to Sioux Gateway Airport is 1 hour and 18 minutes.

What is the time difference between Decatur and Sioux City?

There is no time difference between Decatur and Sioux City.

Flight carbon footprint between Decatur Airport (DEC) and Sioux Gateway Airport (SUX)

On average, flying from Decatur to Sioux City generates about 88 kg of CO2 per passenger, and 88 kilograms equals 195 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Decatur to Sioux City

See the map of the shortest flight path between Decatur Airport (DEC) and Sioux Gateway Airport (SUX).

Airport information

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

Destination	Sioux Gateway Airport
City:	Sioux City, IA
Country:	United States
IATA Code:	SUX
ICAO Code:	KSUX
Coordinates:	42°24′9″N, 96°23′3″W