How far is Ulsan from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Ulsan (Ulsan Airport) is 6597 miles / 10617 kilometers / 5733 nautical miles.

Distance from Chicago to Ulsan

There are several ways to calculate the distance from Chicago to Ulsan. Here are two standard methods:

Vincenty's formula (applied above)

• 6597.370 miles
• 10617.437 kilometers
• 5732.958 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

• 6582.533 miles
• 10593.559 kilometers
• 5720.065 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 Chicago to Ulsan?

The estimated flight time from Chicago O'Hare International Airport to Ulsan Airport is 12 hours and 59 minutes.

What is the time difference between Chicago and Ulsan?

The time difference between Chicago and Ulsan is 15 hours. Ulsan is 15 hours ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Ulsan Airport (USN)

On average, flying from Chicago to Ulsan generates about 799 kg of CO2 per passenger, and 799 kilograms equals 1 761 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to Ulsan

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Ulsan Airport (USN).

Airport information

Origin	Chicago O'Hare International Airport
City:	Chicago, IL
Country:	United States
IATA Code:	ORD
ICAO Code:	KORD
Coordinates:	41°58′42″N, 87°54′17″W

Destination	Ulsan Airport
City:	Ulsan
Country:	South Korea
IATA Code:	USN
ICAO Code:	RKPU
Coordinates:	35°35′36″N, 129°21′7″E