Air Miles Calculator

Distance between Chicago, IL (ORD) and Ulsan (USN)

Flight distance from Chicago to Ulsan (Chicago O'Hare International Airport – Ulsan Airport) is 6597 miles / 10617 kilometers / 5733 nautical miles. Estimated flight time is 12 hours 59 minutes.

Map of flight path from Chicago to Ulsan.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Ulsan Airport (USN).

How far is Ulsan from Chicago?

There are several ways to calculate distances between Chicago and Ulsan. Here are two common 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 earth.

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).

Airport information


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

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

Time difference and current local times

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

Time Difference

Chicago, IL

 CST

Ulsan

 KST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 799 kg (1 761 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Ulsan (USN).

Distance:
6597
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
6597

Round trip?