How far is Decatur, IL, from Ottawa?

The distance between Ottawa (Ottawa Macdonald–Cartier International Airport) and Decatur (Decatur Airport) is 771 miles / 1241 kilometers / 670 nautical miles.

The driving distance from Ottawa (YOW) to Decatur (DEC) is 930 miles / 1496 kilometers, and travel time by car is about 17 hours 52 minutes.

Distance from Ottawa to Decatur

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

Vincenty's formula (applied above)

• 771.050 miles
• 1240.885 kilometers
• 670.024 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

• 769.688 miles
• 1238.692 kilometers
• 668.840 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 Ottawa to Decatur?

The estimated flight time from Ottawa Macdonald–Cartier International Airport to Decatur Airport is 1 hour and 57 minutes.

What is the time difference between Ottawa and Decatur?

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

Flight carbon footprint between Ottawa Macdonald–Cartier International Airport (YOW) and Decatur Airport (DEC)

On average, flying from Ottawa 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 Ottawa to Decatur

See the map of the shortest flight path between Ottawa Macdonald–Cartier International Airport (YOW) and Decatur Airport (DEC).

Airport information

Origin	Ottawa Macdonald–Cartier International Airport
City:	Ottawa
Country:	Canada
IATA Code:	YOW
ICAO Code:	CYOW
Coordinates:	45°19′20″N, 75°40′9″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