How far is Decatur, IL, from Alma?

The distance between Alma (Alma Airport) and Decatur (Decatur Airport) is 1041 miles / 1675 kilometers / 904 nautical miles.

The driving distance from Alma (YTF) to Decatur (DEC) is 1289 miles / 2074 kilometers, and travel time by car is about 25 hours 18 minutes.

Distance from Alma to Decatur

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

Vincenty's formula (applied above)

• 1040.780 miles
• 1674.973 kilometers
• 904.413 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

• 1039.123 miles
• 1672.306 kilometers
• 902.973 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 Alma to Decatur?

The estimated flight time from Alma Airport to Decatur Airport is 2 hours and 28 minutes.

What is the time difference between Alma and Decatur?

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

Flight carbon footprint between Alma Airport (YTF) and Decatur Airport (DEC)

On average, flying from Alma to Decatur generates about 153 kg of CO2 per passenger, and 153 kilograms equals 338 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Alma to Decatur

See the map of the shortest flight path between Alma Airport (YTF) and Decatur Airport (DEC).

Airport information

Origin	Alma Airport
City:	Alma
Country:	Canada
IATA Code:	YTF
ICAO Code:	CYTF
Coordinates:	48°30′32″N, 71°38′30″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