How far is Decatur, IL, from Seoul?

The distance between Seoul (Seoul Gimpo International Airport) and Decatur (Decatur Airport) is 6646 miles / 10696 kilometers / 5776 nautical miles.

Distance from Seoul to Decatur

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

Vincenty's formula (applied above)

• 6646.412 miles
• 10696.363 kilometers
• 5775.574 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

• 6631.425 miles
• 10672.244 kilometers
• 5762.551 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 Seoul to Decatur?

The estimated flight time from Seoul Gimpo International Airport to Decatur Airport is 13 hours and 5 minutes.

What is the time difference between Seoul and Decatur?

The time difference between Seoul and Decatur is 15 hours. Decatur is 15 hours behind Seoul.

Flight carbon footprint between Seoul Gimpo International Airport (GMP) and Decatur Airport (DEC)

On average, flying from Seoul to Decatur generates about 805 kg of CO2 per passenger, and 805 kilograms equals 1 776 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seoul to Decatur

See the map of the shortest flight path between Seoul Gimpo International Airport (GMP) and Decatur Airport (DEC).

Airport information

Origin	Seoul Gimpo International Airport
City:	Seoul
Country:	South Korea
IATA Code:	GMP
ICAO Code:	RKSS
Coordinates:	37°33′29″N, 126°47′27″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