How far is Aspen, CO, from Decatur, IL?

The distance between Decatur (Decatur Airport) and Aspen (Aspen–Pitkin County Airport) is 961 miles / 1547 kilometers / 835 nautical miles.

The driving distance from Decatur (DEC) to Aspen (ASE) is 1148 miles / 1847 kilometers, and travel time by car is about 20 hours 56 minutes.

Distance from Decatur to Aspen

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

Vincenty's formula (applied above)

• 961.111 miles
• 1546.758 kilometers
• 835.183 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

• 958.742 miles
• 1542.946 kilometers
• 833.124 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 Aspen?

The estimated flight time from Decatur Airport to Aspen–Pitkin County Airport is 2 hours and 19 minutes.

What is the time difference between Decatur and Aspen?

The time difference between Decatur and Aspen is 1 hour. Aspen is 1 hour behind Decatur.

Flight carbon footprint between Decatur Airport (DEC) and Aspen–Pitkin County Airport (ASE)

On average, flying from Decatur to Aspen generates about 148 kg of CO2 per passenger, and 148 kilograms equals 327 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 Aspen

See the map of the shortest flight path between Decatur Airport (DEC) and Aspen–Pitkin County Airport (ASE).

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	Aspen–Pitkin County Airport
City:	Aspen, CO
Country:	United States
IATA Code:	ASE
ICAO Code:	KASE
Coordinates:	39°13′23″N, 106°52′8″W