How far is Decatur, IL, from Riyadh?

The distance between Riyadh (King Khalid International Airport) and Decatur (Decatur Airport) is 7137 miles / 11486 kilometers / 6202 nautical miles.

Distance from Riyadh to Decatur

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

Vincenty's formula (applied above)

• 7137.011 miles
• 11485.905 kilometers
• 6201.893 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

• 7124.213 miles
• 11465.310 kilometers
• 6190.772 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 Riyadh to Decatur?

The estimated flight time from King Khalid International Airport to Decatur Airport is 14 hours and 0 minutes.

What is the time difference between Riyadh and Decatur?

The time difference between Riyadh and Decatur is 9 hours. Decatur is 9 hours behind Riyadh.

Flight carbon footprint between King Khalid International Airport (RUH) and Decatur Airport (DEC)

On average, flying from Riyadh to Decatur generates about 874 kg of CO2 per passenger, and 874 kilograms equals 1 927 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Riyadh to Decatur

See the map of the shortest flight path between King Khalid International Airport (RUH) and Decatur Airport (DEC).

Airport information

Origin	King Khalid International Airport
City:	Riyadh
Country:	Saudi Arabia
IATA Code:	RUH
ICAO Code:	OERK
Coordinates:	24°57′27″N, 46°41′55″E

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